General Instructions
IG-136-EN
version 09
cgm.3 system
Medium voltage
SF6 gas-insulated cubicles
up to 40.5 kV
LIB
04.02.2015
Transformer
Transformer
Substations
Substations
Primary
Distribution
Primary
Distribution
Switchgear
Switchgear
Secondary
Distribution
Secondary
Distribution
Switchgear
Switchgear
Protection
and
Protection
and
Automation
Automation
Low
Voltage
Low
Voltage
Boards
Boards
Distribution
Distribution
Transformers
Transformers
CAUTION!
When MV equipment is operating, certain components are live, other parts may be in movement and some may reach high
temperatures. Therefore, the use of this equipment poses electrical, mechanical and thermal risks.
In order to ensure an acceptable level of protection for people and property, and in compliance with applicable environmental
recommendations, Ormazabal designs and manufactures its products according to the principle of integrated safety, based on
the following criteria:

Elimination of hazards wherever possible.

Where elimination of hazards is neither technically nor economically feasible, appropriate protection functions are
incorporated in the equipment.

Communication about remaining risks to facilitate the design of operating procedures which prevent such risks,
training for the personnel in charge of the equipment, and the use of suitable personal protection equipment.

Use of recyclable materials and establishment of procedures for the disposal of equipment and components so
that once the end of their service lives is reached, they are duly processed in accordance, as far as possible, with
the environmental restrictions established by the competent authorities.
Consequently, the equipment to which the present manual refers complies with the requirements of section 11.2 of the
IEC standard 62271-1. It must therefore only be operated by appropriately qualified and supervised personnel, in accordance
with the requirements of standard EN 50110-1 on the safety of electrical installations and standard EN 50110-2 on activities in
or near electrical installations. Personnel must be fully familiar with the instructions and warnings contained in this manual and
in other recommendations of a more general nature which are applicable to the situation according to current legislation.
The above must be carefully observed, as the correct and safe operation of this equipment depends not only on its design but
also on general circumstances which are in general beyond the control and responsibility of the manufacturer. More specifically:

The equipment must be handled and transported appropriately from the factory to the place of installation.

All intermediate storage should occur in conditions which do not alter or damage the characteristics of the
equipment or its essential components.

Service conditions must be compatible with the equipment rating.

The equipment must be operated strictly in accordance with the instructions given in the manual, and the
applicable operating and safety principles must be clearly understood.

Maintenance should be performed properly, taking into account the actual service and environmental conditions
in the place of installation.
The manufacturer declines all liability for any significant indirect damages resulting from violation of the guarantee, under any
jurisdiction, including loss of income, stoppages and costs resulting from repair or replacement of parts.
Guarantee
The manufacturer guarantees this product against any defect in materials and operation during the contractual period. In the
event that defects are detected, the manufacturer may opt either to repair or replace the equipment. Improper handling of this
equipment and its repair by the user shall constitute a violation of the guarantee.
Registered Trademarks and Copyrights
All registered trademarks cited in this document are the property of their respective owners. The intellectual property of this
manual belongs to the manufacturer.
In view of the constant evolution in standards and design, the characteristics of the elements contained in this manual are
subject to change without prior notification.
These characteristics, as well as the availability of components, are subject to confirmation by Ormazabal.
IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
Contents
1.
Description and main characteristics .................................................................................... 4
1.1. Cubicle elements ........................................................................................................................ 5
1.2. Mechanical characteristics ....................................................................................................... 14
2.
Transport ................................................................................................................................. 16
2.1. Lifting methods ......................................................................................................................... 16
2.2. Location of documentation and accessories during transport .................................................. 18
3.
Storage .................................................................................................................................... 19
4.
Installation............................................................................................................................... 21
4.1. Unpacking the equipment ......................................................................................................... 21
4.2. Civil engineering works............................................................................................................. 22
4.3. Fastening to the floor ................................................................................................................ 23
4.4. Connecting the cubicles ........................................................................................................... 27
4.5. Earthing the equipment ............................................................................................................ 27
4.6. Cable connection ...................................................................................................................... 28
4.7. Assembly and connection of metering transformers ................................................................ 28
5.
Recommended sequence of operations .............................................................................. 29
5.1. Checking voltage presence and phase balance....................................................................... 29
5.2. Operating levers ....................................................................................................................... 30
5.3. cgm.3-l cubicle .......................................................................................................................... 32
5.4. cgm.3-s cubicle.......................................................................................................................... 34
5.5. cgm.3-s-ptd cubicle ................................................................................................................... 35
5.6. cgm.3-s-pti cubicle .................................................................................................................... 37
5.7. cgm.3-p cubicle ......................................................................................................................... 39
5.8. cgm.3-rb cubicle with earthing .................................................................................................. 45
5.9. cgm.3-v cubicle with RA(M)V driving mechanism ..................................................................... 46
5.10. cgm.3-v cubicle with A(M)V driving mechanism ....................................................................... 50
5.11. cgm.3-v cubicle with driving mechanism AV (3G) and RAV (3G) ............................................. 54
6.
Interlocks................................................................................................................................. 58
7.
Maintenance ............................................................................................................................ 59
7.1. Voltage presence indicator test ................................................................................................ 60
7.2. Acoustic earthing prevention alarm test ................................................................................... 61
7.3. Specific maintenance for the cgm.3-v cubicle........................................................................... 63
8.
Additional information ........................................................................................................... 64
8.1. Spares and accessories ........................................................................................................... 64
8.2. Environmental information ........................................................................................................ 66
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68
General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
1. Description and main characteristics
cgm.3 system is made up of a range of fully insulated modular and compact SF6 cubicles,
which allow the configuration of different medium voltage (MV) secondary electrical
distribution diagrams up to 40.5 kV.
Modular units
cgm.3-l
Feeder cubicle
cgm.3-s
Busbar switch cubicle[1]
cgm.3-s-pt
Busbar switch cubicle with earth connection on the right (-ptd) or on the left
(-pti)[1]
cgm.3-p
Fuse protection cubicle
cgm.3-v
Circuit breaker cubicle
cgm.3-rb
Busbar rise panel
cgm.3-rc
Cable rise cubicle
cgm.3-m
Metering cubicle[1]
Compact units
cgm.3-2lp
Cubicle with two feeder functions and one fuse protection function[1]
This cubicle system has been designed to meet the requirements of the following standards:
Standard
IEC 62271-1
IEC 62271-200
Alternating current disconnectors and earthing switches.
IEC 62271-103
High voltage switches for rated voltages above 1 kV up to and including
52 kV.
IEC 62271-105
Alternating current switch-fuse combinations.
IEC 62271-100
High voltage alternating current circuit breakers.
IEC 61958 /
IEC 61243-5
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Common specifications for high-voltage switchgear and controlgear
standards.
Alternating current metal-enclosed switchgear and controlgear for rated
voltages above 1 kV and up to and including 52 kV.
IEC 62271-102
IEC 60529
[1]
Description
Available up to 36 kV.
Degrees of protection provided by enclosures.
Voltage presence indicating systems.
IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
1.1. Cubicle elements
Each cubicle is made up of a series of independent compartments:
1. SF6 tank.
2. Driving mechanism compartment.
3. Base:
3a. Cable Compartment.
3b. Gas relief Compartment.
2
1
2
1
3a
3
3
3a
3b
3b
Figure 1.1: Main components of modular
cgm.3 cubicles
1
Figure 1.2: Main components of compact
cgm.3 cubicles
Gas tank: sealed compartment which houses the busbar and the
switching and breaking elements, where the insulating medium is SF6
gas.
The tank has a membrane to allow gases to escape in the event of an
internal arc.
Each tank has a manometer for checking the gas
pressure, which can easily be seen from outside the
cubicle. The manometer scale is divided into different
colours: red, grey and green. For safe operation, the
manometer needle must be in the green zone of the
corresponding temperature band.
Figure 1.3: Gas tank
Figure 1.4: Manometer
Includes a padlockable coupling device which allows
the driving mechanism to be replaced regardless of the position of the
switch-disconnector: closed, open or earthed.
Figure 1.5: Device for
coupling the switch
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68
General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
Switch - disconnector and earthing switch: This has three positions: closed, open or
earthed.
This switch is operated using driving mechanisms with two different actuation zones: one for
the switch (switching between the Closed and Open positions); and the other for the earthing
switch (which switches between the Open and Earthing positions) on the feeder cables, and
in the case of fuse protection cubicles, on the six fuse holder clamps.
These elements are operated independently[2] so that their actuation speed does not depend
on the speed of the manual operation.
Vacuum circuit breaker: The cgm.3-v cubicle's circuit breaker uses vacuum switching
technology.
The circuit breaker is actuated by means of the push-button on the front of the cubicle. For
manual operation, springs must be charged with the corresponding lever.
The cgm.3-v circuit breaker cubicle has two options for ensuring the isolating distance:
a) RA(M)V driving mechanism. The circuit breaker comes standard equipped
with a disconnector and an earthing switch.
b) Driving mechanism A(M)V, A(M)V (3G) or RA(M)V (3G). The circuit breaker
comes standard equipped with a switch-disconnector and an earthing switch.
In both cases, this element is operated using a specific lever depending on the type of
driving mechanism.
The motorised cgm.3-v circuit breaker cubicles may optionally be equipped with an
electromechanical safety device called an undervoltage coil. Its function is to ensure that the
cubicle circuit breaker opens in the event of an unexpected drop of more than 30% in the
auxiliary voltage.
CAUTION
When the cgm.3-v circuit breaker cubicles with A(M)V or RA(M)V driving mechanism have an
undervoltage coil, a possible lack of auxiliary voltage in the coil could cause the cubicle to
block if it is in earthing position.
For these occasions, the undervoltage coil has a manual blocking mechanism that retains the
trip rod while the manual mechanism remains actuated and the coil has no voltage.
For more information on how to carry out the manual blocking of the undervoltage coil or how
to act in the event of an accidental blocking of the cubicle, see the Spares and Accessories
Instructions document RA-216.
[2]
Applicable to cgm.3 system cubicles, except the disconnector of the cgm.3-v cubicle with RA(M)V driving
mechanism.
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IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
2
Driving mechanism compartment: This is the compartment in which the switchdisconnector or the circuit breaker is actuated, depending on the type of cubicle. The mimic
diagram for the Medium Voltage main circuit is displayed on the cover of this compartment.
The mimic diagram includes all the position indicators for the actuators.
Elements in the driving mechanism area of modular cubicles:
cgm.3-s
cgm.3-l
d
d
b
b
a
c
c
f
Figure 1.7: Mimic diagram of cgm.3-s cubicle
Figure 1.6: Mimic diagram of cgm.3-l cubicle
cgm.3-s-ptd
cgm.3-s-pti
d
a
d
b
b
c
a
c
f
Figure 1.8: Mimic diagram of cgm.3-s-ptd cubicle
f
Figure 1.9: Mimic diagram of cgm.3-s-pti cubicle
Where:
a: Earthing switch actuation zone
b: Switch-disconnector actuation zone (B and BM driving mechanisms)
c: Switch and earthing switch position indicator
d: Actuation shaft access handle
f: ekor.vpis or ekor.ivds voltage indicator
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68
General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
cgm.3-p
g
n
d
b
a
h
c
f
Figure 1.10: Mimic diagram of cgm.3-p cubicle
cgm.3-v
e
c
a
d
i
m
l
o
j
n
f
k
Figure 1.11: Mimic diagram of RA(M)V type cgm.3-v cubicle
Figure 1.12: Mimic diagram of A(M)V type cgm.3-v cubicle
d
b
c
i
j
a
f
m
l
n
k
Figure 1.13: Mimic diagram of cgm.3-v AV (3G) and RAV (3G) cubicle types
Where:
a: Earthing switch actuation zone
b: Simultaneous switch - disconnector actuation and spring
charging zone (B driving mechanism)
c: Switch and earthing switch position indicator
d: Actuation shaft access handle
e: Locking with an interlock
f: ekor.vpis or ekor.ivds voltage indicator.
g: Switch opening button (BR-A driving mechanism)
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h: Fuse status indicator
i: Operation counter
j: Spring charging shaft
k: Circuit breaker opening
l: Circuit breaker closing
m: Circuit breaker position indicator
.
n: Spring loading indicator
o: Release of cable compartment cover interlock
.
IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
cgm.3-rb without earthing
cgm.3-rb with earthing
d
a
c
f
Figure 1.14: Mimic diagram of cgm.3-rb cubicle
with earthing
cgm.3-rc
Figure 1.16: Mimic diagram of cgm.3-rc cubicle
f
Figure 1.15: Mimic diagram of cgm.3-rb cubicle
without earthing
cgm.3-m
Figure 1.17: Mimic diagram of cgm.3-m cubicle
Where:
a: Earthing switch actuation zone
c: Earthing switch position indicator
d: Actuation shaft access handle
f: ekor.vpis or ekor.ivds voltage indicator.
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68
General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
Elements in the driving mechanism area of compact cubicles:
cgm.3-2lp
d
g
n
b
a
c
f
h
Figure 1.18: Mimic diagrams of compact cgm.3-2lp cubicles
Where:
a: Earthing switch actuation zone
b: Switch actuation and spring charging zone (BR-A driving mechanism)
c: Switch and earthing switch position indicator
d: Actuation shaft access handle
f: ekor.vpis or ekor.ivds voltage indicator.
g: Switch opening button (BR-A driving mechanism)
h: Fuse status indicator
n: Spring loading indicator
3
Base: Made up of the cable compartment (3a) and the gas relief
compartment (3b), see Figures 1.1 and 1.2. The first is located in
the lower front part of the cubicle and has a cover interlocked with
the unit's earth connection, which allows front access to the
Medium Voltage cables.
The gas relief compartment is located in the lower rear section of
the cubicle. In the event of an internal arc, the gases produced are
deflected downwards and to the rear, and in no way affecting any
persons, cables, or the rest of the installation switchgear[3].
Figure 1.19: Cable compartment
[3]
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For cubicles with an internal arc of 1 s, the gases are diverted to the pit.
IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
1.1.1. Voltage presence indicator
Ormazabal offers two options for the voltage presence indicator:
 ekor.vpis unit for indicating the presence of voltage has been designed in accordance
with the IEC 61958 standard. Therefore, the “presence of voltage” indication appears
when the phase - earth voltage is greater or equal to 45% of the rated voltage and does
not appear when the phase - earth voltage is less than 10% of the rated voltage.
 ekor.ivds unit for detecting the presence of voltage has been designed in accordance
with the IEC 61243-5 standard. Therefore, the “presence of voltage” is detected when the
phase-earth voltage is between 45% and 120% of the rated voltage and does not appear
when the phase-earth voltage is less than 10% of the rated voltage.
Both units provide a clear visual indication to the user, and do not require an auxiliary power
supply to operate.
For each of the three phases, the presence of voltage is indicated by intermittent flashing of
the indicators.
The voltage detection unit has the following indicators:
1
2
4
2
L 1, L2 L3
Display each of the indicator phases
The numbering corresponds to the order of the
phases, from left to right, seen from the front of
the cubicle. Each phase has a test point for
checking the phase balance between cubicles.
Voltage presence indicator
A flashing light indicates the presence of voltage
in that phase.
1
3
Phase test points
Each phase has a test point for checking the
phase balance between cubicles.
4
Earth test point
This is only used for comparing the phases.
3
Figure 1.20: Unit to indicate the presence of voltage
The purpose of the test points for the three phases and earth is to make it easier to check
the phase balance[4] between cubicles. Ormazabal's specific phase comparator ekor.spc can
be used to do this.
CAUTION
If the indicators on the ekor.vpis unit do not light up, other methods should be used to check for
the absence of voltage.
[4]
See section 5.1. ekor.spc - Voltage presence and phase balance checking.
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General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
1.1.2. ekor.sas - Acoustic earthing prevention alarm unit
ekor.sas earthing prevention alarm is an acoustic indicator which works in association with
the earthing shaft handle and the ekor.vpis voltage presence indicator. Both operate within
the same range. The alarm is activated when there is voltage in the cubicle's medium
voltage feeder and the lever is inserted in the earthing switch shaft. A sound then warns the
operator that if he performs the operation, a short - circuit in the network might occur.
NOTE

In the cubicles equipped with the ekor.vpis unit for the indication of the presence of
voltage, the ekor.sas unit is fitted as standard in the cgm.3 system feeder function and
can be supplied on request for the other functions.

The cubicles equipped with the ekor.ivds unit for detecting the presence-absence of
voltage are never fitted with the ekor.sas unit (option not compatible)
ekor.sas
Figure 1.21: Detailed view of location of ekor.sas in cgm.3-l cubicle
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68
IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
1.1.3. Name plate
Every cubicle includes a name plate, with some of the following values:
Figure 1.22: Name plate in cgm.3-l cubicle
Name plate
No.
Cubicle serial number(*)
Type
Ormazabal cubicle system.
Identifier
Cubicle model
Standard
Regulations applied to the equipment
Denom.
Equipment name
Ur
Equipment rated voltage (kV)
Up
Lightning impulse withstand voltage (kV)
Ud
Power frequency withstand voltage (kV)
fr
Equipment rated frequency (Hz)
Ir
Equipment rated current (A)
Manual of instructions
Manual of General Instructions (IG) corresponding to the system
Class
Driving mechanism class according to IEC 62272-103
(formerly IEC 60265-1)
N
Number of mainly active load breaking operations
Ik / Ip
Short-time withstand current/Short-time withstand peak value
tk
Short-time withstand current time
Pre
Gas pressure inside the tank (MPa)
Pme
Minimum operating gas pressure (MPa)
SF6
Weight of insulating fluid (g)
Year
Year of manufacture
TC
Thermal class
IAC
Internal arc classification
( )
* In the event of a problem or non-conformity, please give this number to Ormazabal.
68
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Page1313ofof6868
General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
1.2. Mechanical characteristics
The dimensions and weights of the cgm.3 cubicle system are represented in the following
table.
a
h
g
f
f
Figure 1.23: cgm.3 dimensions
Module
Width
(a)
[mm]
Depth (f)
[mm]
Height
(h)
[mm]
Height
bushing (g)
[mm]
Internal arc up to
20 kA - 0.5 s
l
418
850[1]
1745
1042
Internal arc[5] up to
25 kA - 1 s
Internal arc up to
20 kA - 0.5 s
s
418
850
1745
Internal arc[5] up to
[6]
20 kA - 1 s
Internal arc up to
20 kA - 0.5 s
s-pt
600
850
1745
Internal arc[5] up to
[6]
20 kA - 1 s
Internal arc up to
20 kA - 0.5 s
p
480
1010
1745
525
Internal arc[5] up to
25 kA - 1 s
[1]
Cubicle with double cable: 930 mm.
[5]
The IAC category means that all the medium voltage cubicle compartments are protected against
internal arcs.
[6]
Tests conducted with a current of 21 kA.
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Weight
[kg]
142
162
135
143
175
185
220
230
IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
Module
a(m)v
ra(m)v
a(m)v(3g)
ra(m)v(3g)
Internal arc up to
20 kA - 0.5 s
Internal arc[5] up to
20 kA[6] - 1 s
Internal arc up to
20 kA - 0.5 s
Internal arc up to
20 kA - 0.5 s
Internal arc[5] up to
25 kA[6] - 1 s
Width
(a)
[mm]
Depth (f)
[mm]
Height
(h)
[mm]
Height
bushing (g)
[mm]
600[2]
850
1745
695
Weight
[kg]
250
255
600
850
1800
745
600
850
1745
695
250
250
255
rc left[3]
rc right[3]
-
367
831
1745
-
rb
rb with
earthing
Internal arc up to
20 kA - 0.5 s
Internal arc[5] up to
25 kA - 1 s
418
850[1]
1745
1042
m[3]
-
1100
900
1160
1950
2lp
Internal arc up to
20 kA - 0.5 s
Internal arc[5] up to
20 kA[6] - 1 s
1316
1010[4]
1745
42
138
158
-
290
258
Feeder
Protection
440
1042
525
490
[1]
Cubicle with double cable: 930 mm.
As an option, there is a 595 mm wide module of the A(M)V type cgm.3-v cubicle also available. Consult
Ormazabal.
[3]
This model of cubicle does not have internal arc protection.
[4]
Feeder functional units with double cable: 1090 mm.
[5]
The IAC category means that all the MV cubicle compartments are protected against
internal arcs.
[6]
Tests conducted with a current of 21 kA.
[2]
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Page1515ofof6868
General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
2. Transport
2.1. Lifting methods
The cubicles must always be kept upright, directly on the ground or on a pallet depending on
the type of handling involved.
To handle cgm.3 assemblies with up to 4 functional units, one of the following methods
should be used:
1. Using a forklift truck or hand-operated pallet truck[5].
Figure 2.1: Lifting a cgm.3 modular cubicle using a forklift truck
2. Raising it using slings fixed to the lifting supports on the sides of the top of the
cubicle. The angle of pull should be as vertical as possible (with an angle of more
than 60º from the horizontal).
Figure 2.2: Lifting a cgm.3 modular cubicle with slings
3. If it is not possible to use the aforementioned methods, rollers may be used
underneath the cubicles. Another option is to slide the cubicles over rods (these same
rods can be used to get over the trench).
[5]
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Position the rear of the cubicle facing the driver, to avoid damaging the front.
IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
4. To handle 5 functional unit cgm.3 assemblies (consisting of either coupled modules
or compact assemblies), use lifting systems (slings, lifting beam, etc.) with a pull
angle greater than 65º and less than 115º in order to prevent possible damage to the
cubicles during hoisting.
Figure 2.3: Lifting a cgm.3 assembly with 5 functional units
Figure 2.4: Lifting a cgm.3 assembly with a forklift truck
CAUTION
The use of lifting beams is required for cubicle assemblies with control boxes As the sole
exception, slings may be used if all the cubicles of the assembly have identical height control
boxes installed.
68
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Page1717ofof6868
General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
2.2. Location of documentation and accessories during transport
During transport, the cubicle must be perfectly seated and fixed so that it cannot move about
and possibly damage the equipment.
The corresponding documentation (General Instructions, electrical diagrams, etc.) is
supplied with the cubicles, as well as a set of accessories located at the rear of the cubicles,
as indicated in the figure below:
NOTE
The cubicle models with internal arc for 1 s have the accessories box located on the roof of the
tank.
Documentation and
Accessory Box
Figure 2.5: Location of documentation and accessories during transport
Depending on the medium voltage cubicle model, the accessory box contains some of the
following items:





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Ormazabal's IG-136 General Instructions document
Actuating lever
Spring-charging lever
Cubicle connecting kit:
- ormalink
- Springs
- Syntheso grease
- Earthing flatbar
End plug kit:
- Cubicle end assembly
- Nylon thread
- Plastic plugs
- Side cover
IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
3. Storage
If they need to be stored, Ormazabal's medium voltage cubicles must be placed on dry
ground or, if necessary, on top of damp-proof insulating material, and always in its original
packaging.
After prolonged storage, clean all the insulating parts carefully before commissioning the
equipment. The enclosure should be cleaned with a clean dry lint-free cloth.
40 ºC
max.
- 5 ºC
min.
NOTE
In addition, cubicles are available up to class:
«– 30 ºC interior (– 40 ºC storage)».
Figure 3.1: Conditions of medium voltage cubicle storage
Storage must always be INDOOR, which has the following recommended conditions:
● The ambient air temperature shall not exceed 40 ºC and the average value, measured in a
24 hour period, shall not exceed 35 ºC.
● The ambient air temperature shall not drop below - 5 ºC. Cubicles area also available with
storage temperature down to - 15 ºC and to - 40 ºC.
68
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General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
● The switchgear must be protected against direct solar radiation.
● The altitude shall not exceed 2000 m.
● The ambient air must not be significantly contaminated due to dust, smoke, corrosive
and/or inflammable gases, vapour or salt.
● The switchgear must be protected against rain and the moisture conditions shall be as
follows:
- the average value of the relative humidity, measured in a 24 hour period, shall not exceed
95%.
- the average value of the water vapour pressure, measured in a 24 hour period, shall not
exceed 2.2 kPa.
- the average value of the relative humidity, measured in a one month period, shall not
exceed 90%.
- the average value of the water vapour pressure, measured in a one month period, shall not
exceed 1.8 kPa.
● During transportation, vibrations caused by external forces or due to seismic movements
shall be insignificant.
Any other conditions must be notified beforehand, since the equipment must be factoryadjusted to the atmospheric pressure. Otherwise, the needle may indicate an incorrect value
(red scale), even though the value of the equipment internal pressure is correct. Otherwise,
the manometer needle may indicate an incorrect value, even if the equipment internal
pressure is correct.
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IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
4. Installation
4.1. Unpacking the equipment
cgm.3 system cubicles come wrapped in protective plastic.
On receiving the equipment, check that the goods supplied correspond to the order and
associated documentation.
The process for unpacking the equipment is as follows:
1.
Using a blade, cutter or similar tool, cut the cellophane the cubicle is wrapped in[6].
2.
Remove the cellophane.
3.
Detach the white polystyrene corner pieces.
4.
Unscrew the fixings between the base and the pallet.
5.
Remove the pallet, handling the medium voltage cubicle as indicated in section 2.1.
6.
Unpack the documentation and accessories box located at the bottom rear section or
on the roof of the cubicle, depending on the cubicle model.
7.
Remove the self-adhesive protective plastic from the cable compartment cover.
8.
Dispose of any waste in an environmentally-friendly manner.
It is advisable to make a visual inspection of the equipment to check whether it has suffered
any damage in transit. If so, contact Ormazabal immediately.
CAUTION
The self-adhesive plastic must be removed from the cable compartment cover so that the
equipment enclosure’s earth connection may have the proper electrical continuity.
[6]
It is advisable to cut the cellophane at the rear of the cubicle or at the corner to avoid scratching the surface.
68
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Page2121ofof6868
General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
4.2. Civil engineering works
The minimum distances to the walls and roof, and from the trench for the medium voltage
cables are as follows:
b
d
c
a
Figure 4.1: Minimum installation distances
Minimum distances [mm]
Distances
Side wall (a)
Ceiling (b)
Front clearance (c)
Function
cgm.3-l/s
cgm.3-p / 2lp
cgm.3-v circuit breaker cubicles
cgm.3-m
cgm.3-rc/rb
100
600
500(*)
Rear wall (d)
100 / 160(**)
0
100 / 160(**)
0
100 / 160(**)
( )
* The Spanish HV regulation (MIE-RAT 14) requires a minimum operating
aisle space of 1000 mm
( )
** Diagrams combined with p and 2lp modules.
NOTE
The above-mentioned measurements have been obtained in accordance with the internal arc
tests, which have been carried out in a compartment 2300 mm high, for gas-insulated modules,
according to annex A of standard IEC 62271-200.
The space required to extend the assembly with an additional cubicle is 250 mm plus the
width of the new cubicle[7].
[7]
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Should a query arise, contact Ormazabal.
IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
4.3. Fastening to the floor
Before assembling the cubicles, the floor must be carefully levelled to prevent any
deformation which may make it difficult to connect the cubicles to one another.
The cubicles can be fastened to the floor with or without a profile.
4.3.1. Floor fastening on a profile
If the floor of the transformer substation is not sufficiently uniform, it is advisable to install the
medium voltage cubicle assembly on an auxiliary profile, to make it easier to connect them.
This profile, which can be supplied to order, must be anchored to the floor using expansion
screws.
M10 x 25 bolt
65 x 65 x 4 profile
Anchorage support
Figure 4.2: Fastening cubicles on profile
4.3.2. Fastening to the floor by anchorage
If the floor of the transformer substation is even enough, it is advisable to install the medium
voltage cubicle assembly directly anchored to the floor.
The sequence for anchoring the cubicles to the floor is as follows:
1. Operate the cubicle's switch to the earthing position[8].
NOTE
By default, the cubicles are supplied with the switch in earthing position.
[8]
See section 5. Sequence of Operations of this General Instructions document.
68
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General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
2. Remove the cable compartment cover, using the central handle on the cover to pull it
up and forward as indicated in the figure.
Figure 4.3: Removing the cable compartment cover
3. Anchor the first cubicle to the floor of the installation, using screws at the points
prepared in its base. This will prevent vibrations or movements due to short-circuits,
possible flooding of the transformer substation, etc. Take the following dimensions
and figures into account.
Figure 4.4: Anchoring points in cgm.3 cubicles
Anchorage dimensions [mm]
f
Module
a
b
c
d
e
Internal Arc
20 kA – 0.5 s
Internal Arc
20 kA – 1 s
Internal Arc
25 kA – 1 s
g
l
s
s-pt
p
a(m)v
ra(m)v
a(m)v (3G) ra(m)v
(3G)
rb
rb with earthing
m
50
50
50
50
50
50
368
368
550
430
550
550
245
60
325
325
-
-
540
540
540
540
540
540
710
710
710
710
710
-
710
710
-
-
50
550
325
-
-
540
710
710
-
50
50
35
368
368
1030(*)
245
245
235
-
rc
2lp
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rc left 209
50
317
435
540
rc right 158
50
368
245
430
418
540
710
71060
( )
* Partition between anchors for 1100 mm wide cubicles; partition of 830 mm for 900 mm wide cubicles.
-
540
540
1030
710
710
1030
710
710
-
IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
Figure 4.5: Anchorage points in cubicles
cgm.3 -l, -s, -s-pt, -p,-ra(m)v,-a(m)v
-a(m)v (3g), -ra(m)v (3g), -rb, -rb-pt
Figure 4.6: Anchorage points in cgm.3 -l, -s, -s-pt, -p, ra(m)v, -a(m)v, -a(m)v(3g), -ra(m)v (3g), -rb,-rb-pt double
cable cubicles
a
a
93
c
c
f
f
g
b
b
Figure 4.7: Anchorage points
in cgm.3-rc cubicles
Figure 4.8: Anchorage points in cgm.3-m cubicles
68
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General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
a g
c
f
04.02.2015
e
b
d
a g
c
f
Figure 4.9: Anchorage points in cgm.3-2lp cubicles and feedthrough
e
b
d
Figure 4.10: Anchorage points in cgm.3-2lp double cable cubicles and feedthrough
Once properly levelled, the final installation of the medium voltage cubicle assembly only
requires electrical and mechanical coupling between the different cubicles, and then
anchorage to the floor, which must be carried out as indicated above.
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IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
4.4. Connecting the cubicles
The joining of cubicles must be carried out as indicated in Ormazabal's Spares and
Accessories document RA-163, which is supplied with the materials kit used for connecting
cubicles.
4.5. Earthing the equipment
For connecting the general earthing collector, follow the procedures listed below:
1. Screw the earth connection flatbar between each 2 medium voltage cubicles, at their
back side, using 2 M8 x 20 hexagonal screws. Apply a tightening torque of 15 Nm.
Tools:
13 mm spanner
Torque wrench with 13 mm adapter
Cubicle 1
Cubicle 2
Cubicle 3
Figure 4.11: Earthing the equipment
2. Connect the end earthing flatbar, marked with the symbol
substation's general earth connection.
, to the transformer
CAUTION
Earthing the equipment is an essential condition for safety.
68
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General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
4.6. Cable connection
The medium voltage incoming and outgoing feeders are linked to the transformer or other
cubicles via cables. These cables and the corresponding bushings on the cgm.3 system
cubicles can be connected with simple (plug-in) or reinforced (screw-in) connecting points,
either IEC type or IEEE-386 compliant.
The cable compartment contains the connecting cable bushings for the incoming and
outgoing lines, as well as for the outputs to the transformer.
The size of the cable compartment allows the use of both insulated and partially insulated
terminals[9].
CAUTION
Never touch live connectors, not even screened connectors. Screening does not constitute a
protection against direct contact.
When the equipment is in service and a reserve cubicle is left with voltage in the upper busbar
and without cables in the lower bushings, insulating plugs (EUROMOLD) must be placed in the
bushings, or else the earthing switch must be placed in the earthing position, and locked in
that position with a padlock.
The recommended terminations are described below:
Cable
type
Protection
Dry
insulation
Screened
Connector
Elbow
Manufacturer
Rated
current
[A]:
EUROMOLD(*)
400
630
630
36 kV
CrossType
section
[mm2]
40.5 kV
CrossType
section
[mm2]
35-240
-
M400TB
35-240
P400TB
35-240
M440TB
185-630
P440TB
185-630
M400LR
-
( )
* Connectors recommended by Ormazabal for cgm.3 system cubicles.
NOTE
In addition to the above list they are also valid for CENELEC terminations.
For other terminations, please consult Ormazabal.
4.7. Assembly and connection of metering transformers
The voltage and current metering transformers are mounted on fastening rails installed in the
Ormazabal cgm.3-m modular metering cubicle.
The layout and connection of these transformers (maximum three voltage transformers and
three current transformers per metering cubicle) will be according to the layout requested
and the type of transformer to be installed.
NOTE
For further information concerning the assembly and connection of the metering transformers
in the Ormazabal cgm.3-m metering cubicles, please refer to the MO-082 operation manual
“Assembly of transformers and busbars in metering cubicles”.
[9]
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It is advisable to use fully insulated connectors for voltages of 36 kV, according to HD 629.
IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
5. Recommended sequence of operations
CAUTION
Before carrying out any operation when the cubicle is energised, we recommend checking
the SF6 gas pressure, using the manometer.
5.1. Checking voltage presence and phase balance
Ormazabal's ekor.spc[10] phase comparator should be used for checking that the medium
voltage cables are correctly connected to the feeder cubicles.
Firstly, connect the red cables of the ekor.spc unit to the corresponding phase test points on
the voltage indication units[11] units, and the black cable to the earth test point. This operation
should be repeated for all the phases: L1, L2 and L3
Figure 5.1: Connecting the ekor.spc unit
Comparison of balanced phases
Comparison of unbalanced phases
There is NO indication on the comparator
YES, there is indication on the comparator
[10]
[11]
Optionally, other comparison devices which comply with the IEC 61958 standard may be used.
See section 1.1.1. Voltage Indication of this General Instructions document.
68
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General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
5.2. Operating levers
CAUTION
For safety reasons, maintenance operations performed directly on the driving mechanism must
be performed WITHOUT any actuating lever inserted.
The cgm.3 system cubicles are operated with 3 different types of lever, depending on the
type of driving mechanism used.
5.2.1. Driving mechanism lever B, A(M)V, A(M)V(3G) and RA(M)V (3G)
This is an antireflex lever for performing closing (I) and opening (O) operations in the
switch/disconnector respectively, without exceeding the medium voltage cubicle's
manoeuvring limits.
Figure 5.2: Driving mechanism lever
This type of lever prevents the opposite operation being carried out immediately after
opening or closing the switch.
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IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
5.2.2. Driving mechanism lever RA(M)V
It is used for operating the RA(M)V type cgm.3-v circuit breaker cubicle.
It is an antireflex lever with two different heads for performing operations on the
disconnector-earthing switch located in the cubicle.
Using the "black" head, it goes from closed position to open position, or vice versa.
Using the "red" head, it goes from open position to earthing position, or vice versa.
Black
Red
Figure 5.3: Operation of disconnector
Figure 5.4: Operation of earthing switch
5.2.3. Spring charging lever for circuit breaker driving mechanisms
The spring charging lever is used to manually charge the springs in the circuit breaker
driving mechanism.
1
1
2
cgm.3-v A(M)V and RA(M)V
2
cgm.3-v AV(3G) and RAV(3G)
Figure 5.5: Types of spring charging lever
68
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Page3131ofof6868
General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
5.3. cgm.3-l cubicle
5.3.1. Opening operation from the earthing position
1. Move the actuation shaft access handle in the yellow zone to its lower position.
2. Insert the lever in the earthing switch actuation shaft and turn anticlockwise.
3. Remove the lever. The handle returns to its original position.
4. Verify that the cubicle is in open position.
Figure 5.6: Opening operation from earthing position in cgm.3-l
5.3.2. Switch closing operation from the open position
1. Move the actuation shaft access handle in the grey zone to its lower position.
2. Insert the lever in the switch-disconnector actuation shaft and turn clockwise.
3. Remove the lever. The handle returns to its original position.
4. Verify that the cubicle is in closed position.
Figure 5.7: Closing operation from open position in cgm.3-l
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IG-136-EN
version 09
04.02.2015
IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
5.3.3. Opening operation from the switch - disconnector closed position
1. Move the actuation shaft access handle in the grey zone to its lower position.
2. Insert the lever in the switch-disconnector actuation shaft and turn anticlockwise.
3. Remove the lever. The handle returns to its original position.
4. Verify that the cubicle is in open position.
Figure 5.8: Opening operation from switch closed position in cgm.3-l
5.3.4. Earthing operation from the open position
1. Move the actuation shaft access handle in the yellow zone to its lower position.
2. Insert the lever in the earthing switch actuation shaft and turn clockwise.
3. Remove the lever. The handle returns to its original position.
4. Verify that the cubicle is in earthing position.
Figure 5.9: Earthing from open position cgm.3-l
68
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General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
5.3.5. Cable test
To test the cables in cgm.3-l feeder cubicles, B/BM driving mechanisms with this feature
must be ordered.
These driving mechanisms allow the operation of going from earthing switch closed to
switch-disconnector open, even when the cable compartment cover is open. Thus, the
switch-disconnector cannot be changed to the closed position until this cover has been put
back.
5.4. cgm.3-s cubicle
5.4.1. Switch - disconnector closing operation
1. Move the actuation shaft access handle to its lower position.
2. Insert the lever in the actuation shaft and turn clockwise.
3. Remove the lever. The handle returns to its original position.
4. Verify that the cubicle is in closed position.
Figure 5.10: Closing the switch in cgm.3-s
5.4.2. Switch - disconnector opening operation
1. Move the actuation shaft access handle to its lower position.
2. Insert the lever in the actuation shaft and turn anticlockwise.
3. Remove the lever. The handle returns to its original position.
4. Verify that the cubicle is in open position.
Figure 5.11: Opening the switch in cgm.3-s
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IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
5.5. cgm.3-s-ptd cubicle
5.5.1. Opening operation from the earthing position
1. Move the actuation shaft access handle in the yellow zone to its lower position.
2. Insert the lever in the earthing switch actuation shaft and turn anticlockwise.
3. Remove the lever. The handle returns to its original position.
4. Verify that the cubicle is in open position.
Figure 5.12: Opening operation from earthing position in cgm.3-s-ptd
5.5.2. Closing operation from the open position
1. Move the actuation shaft access handle in the grey zone to its lower position.
2. Insert the lever in the switch-disconnector actuation shaft and turn clockwise.
3. Remove the lever. The handle returns to its original position.
4. Verify that the cubicle is in closed position.
Figure 5.13: Closing operation from open position in cgm.3-s-ptd
68
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General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
5.5.3. Opening operation from the switch - disconnector closed position
1. Move the actuation shaft access handle in the grey zone to its lower position.
2. Insert the lever in the switch-disconnector actuation shaft and turn anticlockwise.
3. Remove the lever. The handle returns to its original position.
4. Verify that the cubicle is in open position.
Figure 5.14: Opening operation from switch position closed in cgm.3-s-ptd
5.5.4. Earthing operation from the open position
1. Move the actuation shaft access handle in the yellow zone to its lower position.
2. Insert the lever in the earthing switch actuation shaft and turn clockwise.
3. Remove the lever. The handle returns to its original position.
4. Verify that the cubicle is in earthing position.
Figure 5.15: Earthing from open position in cgm.3-s-ptd
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IG-136-EN
version 09
04.02.2015
IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
5.6. cgm.3-s-pti cubicle
5.6.1. Opening operation from the earthing position
1. Move the actuation shaft access handle in the yellow zone to its lower position.
2. Insert the lever in the earthing switch actuation shaft and turn anticlockwise.
3. Remove the lever. The handle returns to its original position.
4. Verify that the cubicle is in open position.
Figure 5.16: Opening operation from earthing position in cgm.3-s-pti
5.6.2. Closing operation from the open position
1. Move the actuation shaft access handle in the grey zone to its lower position.
2. Insert the lever in the switch-disconnector actuation shaft and turn clockwise.
3. Remove the lever. The handle returns to its original position.
4. Verify that the cubicle is in closed position.
Figure 5.17: Closing operation from open position in cgm.3-s-pti
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General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
5.6.3. Opening operation from the switch - disconnector closed position
1. Move the actuation shaft access handle in the grey zone to its lower position.
2. Insert the lever in the switch actuation shaft and turn anticlockwise.
3. Remove the lever. The handle returns to its original position.
4. Verify that the cubicle is in open position.
Figure 5.18: Opening operation from switch closed position in cgm.3-s-pti
5.6.4. Earthing operation from the open position
1. Move the actuation shaft access handle in the yellow zone to its lower position.
2. Insert the lever in the earthing switch actuation shaft and turn clockwise.
3. Remove the lever. The handle returns to its original position.
4. Verify that the cubicle is in earthing position.
Figure 5.19: Earthing from open position in cgm.3-s-pti
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General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
5.7. cgm.3-p cubicle
5.7.1. Opening operation from the earthing position
1. Move the actuation shaft access handle to its lower position.
2. Insert the lever in the earthing switch actuation shaft and turn anticlockwise.
3. Remove the lever. The handle returns to its original position.
4. Verify that the cubicle is in open position.
Figure 5.20: Opening operation from earthing position in cgm.3-p
5.7.2. Switch - disconnector closing operation from the open position (using
the BR-A driving mechanism)
1. Move the actuation shaft access handle to its lower position.
2. Insert the lever in the switch-disconnector actuation shaft and turn clockwise. In the same
turn, the switch-disconnector is closed and the retaining springs are charged.
3. Remove the lever. The handle returns to its original position.
4. Verify that the cubicle is in closed position.
Figure 5.21: Closing operation from open position in cgm.3-p
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General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
5.7.3. Opening operation from the switch - disconnector closed position
1. The switch can be opened manually, using the push-button on the front of the cubicle, an
opening coil release, or due to action by the fuses.
2. Verify that the cubicle is in open position.
Figure 5.22: Opening operation from switch closed position in cgm.3-p
5.7.4. Earthing operation from the open position
1. Move the actuation shaft access handle to its lower position.
2. Insert the lever in the earthing switch actuation shaft and turn clockwise.
3. Remove the lever. The handle returns to its original position.
4. Verify that the cubicle is in earthing position.
Figure 5.23: Earthing operation from Open Position in cgm.3-p
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IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
5.7.5. Selection of recommended fuses
The fuses recommended for use in the fuse protection functional unit are defined according
to tests carried out by the manufacturers. The following table shows the recommended fuse
ratings according to the Ur/Ptransf. ratio:
Ur [kV]
Transformer rated power [kVA]
Line
Cubicle
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
25
36
6.3
10
16
16
16
20
20
31.5
31.5
40
40
50
63
80*
30
36
6.3
6.3
10
16
16
16
20
20
31.5
31.5
40
40
63
63
35/36
40,5
6.3
6.3
10
16
16
16
20
20
31.5
31.5
40
40
50
63
Remarks:
 General operating conditions: Without overload, and temperature < 40 ºC.
( )
 The values marked with an * correspond to SSK-type fuses.
 Maximum permitted power loss for a fuse: < 75 W.
Recommended fuses: SIBA 20/36 kV, type HH, medium type striker, for functional units up to
36 kV and SIBA HHD TB 40.5 kV, medium type striker, for functional units up to 40.5 kV
(conforming to IEC 60282-1).
For other brands of fuses and for protection with overload, consult Ormazabal.
 Temperature-rise testing of the fuse switch assembly, according to IEC 62271-105.
Transfer current according to IEC 62271-105:
The transfer currents have been tested according to the following parameters:
Ur Fuse
[kV]
Ur Cubicle
[kV]
36
36
40.5
40.5
Ir Fuse
[A]
SSK type
80
Type HH
63
Itransfer
[A]
820
700
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General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
5.7.6. Fuse replacement sequence
If any of the 3 fuses blows, the switch-disconnector (a) will open automatically; this is
indicated by the red position indicator (b) located on the front of the driving mechanism
compartment.
(b)
(a)
Figure 5.24: Fuse tripping indication in cgm.3-p
NOTE
As an option, an auxiliary blown fuse indication for any of the 3 fuses is also available. More
precisely, it consists of a normally open contact plus a normally closed contact (1 NO + 1 NC)
for auxiliary circuits such as an illuminated indication showing that any of the fuses has blown.
In order to replace the fuses, the following procedures must be followed:
1. Close the earthing switch (c).
2. Remove the cable and fuse compartment access cover by pulling the handle (d) up.
(c)
(d)
Figure 5.25: Opening the cable compartment cover
3. Pull up the handle on the fuse holder cover until the locking clip is unhooked and then
pull sharply outwards to open the fuse holder.
Figure 5.26: Opening the fuse holder
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General
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GENERAL
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cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
4. Remove the fuse holder carriage by pulling it outward.
Figure 5.27: Removing the fuse holder carriage
5. Replace the blown fuse, taking special care with the striker as shown in the figure.
Fuse striker
Figure 5.28: Changing the médium voltage fuse
CAUTION
Make sure that the end of the new fuse with the fuse striker faces the carriage insulator end.
It is advisable to change all three fuses, even if only one of them appears to be damaged.
6. Insert the fuse holder carriage in its compartment by pulling it inward.
Figure 5.29: Inserting the fuse holder carriage
CAUTION
Before inserting the fuse holder carriage in the fuse-protection cubicle, ensure that both the
carriage as well as the inside of the fuse holder are properly cleaned.
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General INSTRUCTIONS
instructions for FOR
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cgm.3
CGM.3system
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Medium
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MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
7. Reset the fuse striker by pressing downward with the thumb.
Figure 5.30: Resetting the striker in the fuse holder cover
8. Close the cover and check that all the strikers have been reset.
Figure 5.31: Closing the fuse holder
9. Place the fuse and cable compartment access cover (a) by pushing it downward and
ensuring it is interlocked on the cgm.3-p cubicle, taking into account that the fuse
status indicator (b) is green.
(b)
(a)
Figure 5.32: Closing the cable compartment cover in cgm.3-p
10. Commission the cubicle, following the instructions in section 5.7 of this document,
which correspond to the opening operation in the cgm.3-p cubicle.
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General
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GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
5.8. cgm.3-rb cubicle with earthing
5.8.1. Opening operation from the earthing position
1. Move the actuation shaft access handle in the yellow zone to its lower position.
2. Insert the lever in the earthing switch actuation shaft and turn anticlockwise.
3. Remove the lever. The handle returns to its original position.
4. Verify that the cubicle is in open position.
Figure 5.33: Opening operation from earthing position in cgm.3-rb with earthing
5.8.2. Earthing operation from the open position
1. Move the actuation shaft access handle in the yellow zone to its lower position.
2. Insert the lever in the earthing switch actuation shaft and turn clockwise.
3. Remove the lever. The handle returns to its original position.
4. Verify that the cubicle is in earthing position.
Figure 5.34: Earthing from open position in cgm.3-rb with earthing
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General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
5.9. cgm.3-v cubicle with RA(M)V driving mechanism
5.9.1. Opening operation from the earthing position
In order to carry out the opening operation from the earthing position, proceed in accordance
with the following sequence:
1. Check the tension of the spring (a) and if necessary, tighten it (see section 5.2.3
“Spring charging lever for circuit breaker driving mechanisms”).
2. Open the circuit breaker by pressing the “0” (b) button and check the status indicator.
3. Turn locking piece (c) and slide the interlock down. Turn the locking piece again, to
lock the interlock.
4. Insert the lever in the disconnector actuation shaft, on the red side, and turn
anticlockwise.
5. Remove the lever.
6. Unlock the locking piece (c).
7. Verify that the cubicle is in open position.
Red
(c)
(a)
(b)
Figure 5.35: Opening sequence for RA(M)V driving mechanism
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General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
5.9.2. Circuit breaker closing operation from the open position
In order to carry out the closing operation in the circuit breaker from the open position,
proceed in accordance with the following sequence:
1. Turn locking piece (a) and slide the interlock down. Turn the locking piece again, to
lock the interlock.
2. Insert the lever in the disconnector actuation shaft, on the black side, and turn
anticlockwise.
3. Remove the lever.
4. Turn locking piece (a) to override the interlock. The interlock plate will rise.
5. Tightening the springs if not using the motorised driving mechanism (see section 5.2.3
“Spring charging lever for circuit breaker driving mechanisms”).
6. Connect the circuit breaker by pressing the button «I» (b) located on the front
pushbutton.
7. Verify that the cubicle is in closed position.
Black
(a)
(b)
Figure 5.36: Closing sequence for RA(M)V driving mechanism
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General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
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Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
5.9.3. Opening operation from the circuit breaker closed position
In order to carry out the opening operation in the circuit breaker from the closed position,
proceed in accordance with the following sequence:
1. Check the tension of the spring (a) and if necessary, tighten it (see section 5.2.3
“Spring charging lever for circuit breaker driving mechanisms”).
2. Open the circuit breaker by pressing the “0” (b) button and check the status indicator.
3. Turn locking piece (c) and slide it down. Turn it again, to lock the interlock.
4. Insert the lever in the disconnector actuation shaft, on the black side, and turn
clockwise.
5. Remove the lever.
6. Turn locking piece (c) to cancel the interlock, and the interlock plate will rise.
7. Verify that the cubicle is in open position.
Black
(c)
(a)
(b)
Figure 5.37: Opening sequence for RA(M)V driving mechanism
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General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
5.9.4. Earthing preparing operation from the open position
1. Turn locking piece (a) and slide it down. Turn it again, to lock the interlock.
2. Insert the lever in the disconnector actuation shaft, on the red side, and turn clockwise.
3. Remove the lever.
4. Turn locking piece (a) again to override the interlock. The interlock plate will rise.
(a)
Red
5.9.5. Earthing operation from the prepared for earthing position
1. Tightening the springs if not using the motorised driving mechanism (see section 5.2.3
“Spring charging lever for circuit breaker driving mechanisms”).
2. Close the circuit breaker by pressing button “I”, and check the status indicator. In this
position, it is possible to unlock and remove the cable access cover.
Figure 5.38: Earthing sequence for RA(M)V driving mechanism
NOTE
ALWAYS lock in this position, with either padlock or key, before carrying out any work with the
cubicle powered down.
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General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
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Medium
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MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
5.10. cgm.3-v cubicle with A(M)V driving mechanism
5.10.1.
Opening operation from the earthing position
Initial conditions: Earthing switch closed and circuit breaker closed.
1. Move the access handle in the yellow zone to its lower position.
2. Insert the lever in the earthing actuation shaft and turn anticlockwise.
3. Remove the lever. The handle returns to its original position.
4. Open the circuit breaker by pressing the “0” button on the front push-button and check
the status indicator.
5. Verify that the cubicle is in open position.
Figure 5.39: Disconnection from earthing position in A(M)V
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General
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GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
5.10.2.
Closing operation from the open position
Initial conditions: Earthing switch open, circuit breaker open and springs charged.
1. Move the access handle in the grey zone to its lower position.
2. Insert the lever in the switch-disconnector actuation shaft and turn clockwise.
3. Remove the lever. The handle returns to its original position.
4. Close the circuit breaker by pressing button “I”, and check the status indicator.
Manual driving mechanism (AV): Charge springs, operating the charge lever (see section
5.2.3 “Spring charging lever for circuit breaker driving mechanisms”), until the spring is
shown as tight. Once the spring has been tightened, close the switch by pressing the close
button; then check the status indicator and whether voltage is present in the ekor.vpis or
ekor.ivds unit.
Motorised driving mechanism (AMV): Close the switch by pressing the closing button;
then check the status indicator and whether voltage is present in the ekor.vpis or ekor.ivds
unit.
Figure 5.40: Connection from open position in A(M)V
68
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General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
5.10.3.
IG-136-EN
version 09
04.02.2015
Opening operation from the closed position
Initial conditions: Circuit breaker closed, earthing switch open and springs charged.
1. Open the circuit breaker by pressing the “0” opening button on the front push-button
and check the status indicator.
2. Check that no voltage is present using the ekor.vpis or ekor.ivds unit.
3. Move the access handle in the grey zone to its lower position.
4. Insert the lever in the switch-disconnector actuation shaft and turn anticlockwise.
5. Remove the lever. The handle returns to its original position.
6. Verify that the cubicle is in open position.
Figure 5.41: Disconnection from closed position in A(M)V
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General
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GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
5.10.4.
Earthing operation from the open position
Initial conditions: Circuit breaker open and earthing switch open with springs charged.
1. Close the circuit breaker by pressing the “I” close button and check the status
indicator.
2. Check that no voltage is present using the ekor.vpis or ekor.ivds unit.
3. Move the access handle from the yellow zone to its lower position.
4. Insert the lever in the earthing switch actuation shaft and turn clockwise.
5. Remove the lever. The handle returns to its original position.
6. Verify that the cubicle is in earthing position.
Figure 5.42: Earthing from open position in A(M)V
NOTE
When undertaking work with the cubicle powered down, it is mandatory to interlock the
earthing position with either a padlock or a safety lock.
68
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General INSTRUCTIONS
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cgm.3
CGM.3system
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Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
5.11. cgm.3-v cubicle with driving mechanism AV (3G) and RAV (3G)
5.11.1.
Opening operation from the earthing position
Initial conditions: Earthing switch closed and circuit breaker closed.
1. Move the access handle in the yellow zone to its lower position.
2. Insert the lever in the earthing actuation shaft and turn anticlockwise.
3. Remove the lever. The handle returns to its original position.
Figure 5.43: Opening from earth for AV (3G) and RAV (3G) mechanisms
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version 09
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IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
5.11.2.
Closing operation from the open position
Initial conditions: Earthing switch open, circuit breaker closed and springs charged.
1. Open the circuit breaker by pressing the “0” button on the front push-button and check
the status indicator.
2.
Move the access handle in the grey zone to its lower position.
3. Insert the lever in the disconnector actuation shaft and turn clockwise.
4. Remove the lever. The handle returns to its original position.
5. Close the circuit breaker by pressing button “I”, and check the status indicator.
Manual driving mechanism (AV (3G)): Charge springs, operating the charge lever (see
section 5.2.3 “Spring charging lever for circuit breaker driving mechanisms”), until the spring
is shown as tight. Once the spring has been tightened, close the switch by pressing the close
button; then check the status indicator and whether voltage is present in the ekor.vpis or
ekor.ivds unit.
Motorised driving mechanism (AMV (3G)): Close the switch by pressing the closing
button; then check the status indicator and whether voltage is present in the ekor.vpis or
ekor.ivds unit.
Figure 5.44: Connection from open position for AV (3G) and RAV (3G) mechanisms
68
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GENERAL
cgm.3
CGM.3system
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MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
5.11.3.
IG-136-EN
version 09
04.02.2015
Opening operation from the closed position
Initial conditions: Circuit breaker closed, earthing switch open and springs charged.
1. Open the circuit breaker by pressing the “0” opening button on the front push-button and
check the status indicator.
2. Check that no voltage is present using the ekor.vpis unit.
3. Move the access handle in the grey zone to its lower position.
4. Insert the lever in the disconnector actuation shaft and turn anticlockwise.
5. Remove the lever. The handle returns to its original position.
Figure 5.45: Disconnection from closed position for AV (3G) and RAV (3G) mechanisms
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General
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GENERAL
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cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
5.11.4.
Earthing operation from the open position
Initial conditions: Circuit breaker open and earthing switch open with springs charged.
1. Close the circuit breaker by pressing the “I” close button and check the status indicator.
2. Check that no voltage is present using the ekor.vpis unit.
3. Move the access handle in the yellow zone to its lower position.
4. Insert the lever in the earthing switch actuation shaft and turn clockwise.
5. Remove the lever. The handle returns to its original position.
Figure 5.46: Earthing from open position for AV (3G) and RAV (3G) mechanisms
NOTE
When undertaking work with the cubicle powered down, it is mandatory to interlock the
earthing position with either a padlock or a safety lock.
68
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General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
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Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
6. Interlocks
cgm.3 switchgear incorporates safety locks required to ensure the following conditions:
a)
The switch - disconnector and the earthing switch cannot both be in closed position at
the same time.
b)
The cubicles have a safety interlock which prevents access to the medium voltage cable
compartment while the earthing switch is not closed. In normal operation, this earthing
switch cannot be opened if the cable compartment access cover is not in place.
6.1.1. Locking with a padlock
The cubicles are supplied with an independent padlock interlock for both the switchdisconnector, in its closed or open positions, and the earthing switch, in its closed or open
positions. Padlocks with ring diameters of between 8 and 11 mm can be used.
Figure 6.2: Interlocking in cgm.3-l cubicle using padlock and keys
6.1.2. Locking with a key lock (optional)
Both the switch-disconnector and the earthing switches can have an optional locking interlock
device, which allows its operation to be blocked in both the open and closed positions.
Figure 6.2: Interlocking in cgm.3-l cubicle using keys
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General
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GENERAL
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cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
7. Maintenance
CAUTION
For safety reasons, maintenance operations performed directly on the driving mechanism
must be performed WITHOUT any actuating lever inserted.
The live parts of the main circuit and breaking/connection equipment do not require
inspection or maintenance, as they are completely insulated in SF6, and therefore free from
any influence from the external environment.
The driving mechanisms have also satisfactorily passed the endurance tests (class M1/M2
for the switch-disconnector, according to IEC 62271-103 and class M0 for the earthing
switch, according to IEC 62271-102).
These mechanisms must be inspected when used under extreme conditions (dust, salt,
pollution). It is advisable to carry out at least one operation during the inspections.
Components which have been painted to guarantee their performance against rust must be
repaired to prevent possible corrosive effects in the event of scratches, knocks or similar,
CAUTION
In facilities that operate under severe climate conditions with a greater demand than those
specified as Normal Service Conditions (IEC 62271-1), the necessary regular preventive
maintenance tasks must be carried out. Consult Ormazabal in accordance with the
environmental conditions of the facility.
68
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General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
7.1. Voltage presence indicator test
To test the ekor.vpis or ekor.ivds voltage presence indicator, connect it to a 230 Vac power
supply. To do this, disconnect the ekor.vpis or ekor.ivds unit from the cubicle, and, using
4 mm terminals, apply the voltage between the test point for the phase to be checked and
the earth test point.
NOTE
No polarity is defined for 230 Vac voltage, so either the phase or neutral conductor can be
connected.
If a flashing signal is observed, the device is working correctly. In order to properly test the
ekor.vpis or ekor.ivds, this check should be carried out for all three phases.
Figure 7.1: ekor.vpis device
CAUTION
The voltage presence indication is not sufficient to ensure that the installation has been
disconnected from the electricity supply. Before accessing the cable compartments, it is
necessary to confirm that the line is connected to earth.
The ekor.vpis or ekor.ivds voltage indicator can be replaced if required. To do so, loosen until
removing the two screws on the top right and bottom left of the indicator using a medium size
Philips screwdriver. The ekor.vpis or ekor.ivds unit can then be disconnected from the base
without needing to power down the line.
Tool: Medium size Phillips screwdriver.
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IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
7.2. Acoustic earthing prevention alarm test
To test that the ekor.sas acoustic alarm is working correctly, connect the ekor.vpis voltage
presence indicator to 230 Vac by means of 4 mm terminals, which are connected to the
indicator between the earth test point and the test point for the L1 phase. The auxiliary power
supply is maintained for 5 minutes. As the handle is moved to insert the lever in the earthing
shaft in order to carry out the operation, the alarm starts to sound and continues to sound for
at least 30 seconds. It stops when the handle is released.
The ekor.sas alarm can be replaced if necessary, since it is joined to the associated elements
with two friction-fit PCB connectors:
1. 3-pin connector, polarised for the voltage presence indicator.
2. 2-pin connector for the lever micro-switch.
The process is as follows:
Remove the driving mechanism cover.
1. Unscrew the ekor.sas unit to remove it.
2. Undo both connectors and replace the damaged unit; then connect it to the lever
microswitch (2-pin connector) and the voltage indicator (polarised 3-pin connector).
ekor.sas
Figure 7.2: ekor.sas device
68
Page
Page6161ofof6868
General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
7.2.1.1.
IG-136-EN
version 09
04.02.2015
Connecting the ekor.sas unit:
1
2
1
Connection to the lever microswitch
in the earthing shaft
2 Connection to the voltage presence indicator
Figure 7.3: Connecting the ekor.sas unit
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68
IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
7.3. Specific maintenance for the cgm.3-v cubicle
The driving mechanisms and other elements outside the gas tank may require preventive
maintenance; the frequency of this maintenance depends on the existing environmental
conditions (harsh environments, dust, extreme temperatures, etc.), and should be
established based on the installer's experience and their responsibility.
The maintenance should take place every 5 years or 2000 operating cycles, unless, based
on the conditions of use, the user, together with Ormazabal, consider otherwise.
NOTE
Depending on the type of driving mechanism, the recommended preventive maintenance
procedure is described in the following Ormazabal operating manuals:
- cgm.3-v RA(M)V-type:
MO-041
- cgm.3-v A(M)V-type:
MO-073
- cgm.3-v A(M)V (3G) and RA(M)V (3G) type: MO-079
68
Page
Page6363ofof6868
General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
8. Additional information
8.1. Spares and accessories
Although all the components of the cgm.3 cubicles have passed both routine tests during the
manufacturing process and type tests prior to approval, some of them can be changed,
replaced and even installed on site.
If any of the stated auxiliary components need to be changed, the corresponding spare parts
kit must be ordered, and the instructions given in the corresponding documentation must be
followed.
cgm.3 system functional units have the following options for spares and accessories:
v
Driving mechanism
l
p
s
s-pt
B
BM
Motor assembly B
BR-A
BR-AM
Set of auxiliary contacts
2 NO + 2 NC switchdisconnector
1 NO + 1 NC earth connection
Circuit breaker motorisation
X
X
X
X
X
X
X
X
X
-
X
X
X
-
-
X
-
X
X
-
-
-
-
-
A(M)V
A(M)V(3G)
RA(M)V(3G)
X
-
m
rb
rc
2lp
-
X
-
-
X
X
X
X
X
X
-
X
-
X
X
X
-
-
-
-
RA(M)V
4 NO + 4 NC circuit breaker
-
-
-
-
X
X
-
-
-
-
Opening coil release
Opening coil release + 1 NOC
switch + micro-disconnection
Bistable + 1 NOC switch +
micro-disconnection
Actuating lever(*)
X
X
-
-
X
X
-
-
-
X
X
X
-
-
-
-
-
-
-
X
X
X
-
-
-
-
-
-
-
X
X
X
X
X
X
X
-
X
-
X
Fuse holder carriage
-
X
-
-
-
-
-
-
-
X
m
rb
rc
2lp
-
X
X
X
X
X
v
Protection, metering
and control
l
p
s
s-pt
ekor.rpg
ekor.rpt
ekor.rci
ekor.vpis (**)
X
X
X
X
X
X
X
X
ekor.ivds (**)
X
X
X
X
X
X
-
X
X
X
ekor.spc
X
X
X
X
X
X
-
X
X
X
ekor.sas
X
X
X
X
X
X
-
X
-
X
RA(M)V
A(M)V
A(M)V(3G)
RA(M)V(3G)
X
X
X X X
X
X
( )
* All levers are of the anti-reflex type, making it impossible to perform an opening operation after closing.
( )
** Components which can only be replaced by specifically qualified personnel.
ekor.rtk
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68
IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
v
Metal enclosure
Driving mechanism
compartment cover
Cable compartment cover
Cable compartment cover,
special depth
l
p
s
s-pt
X
X
X
X
X
X
X
X
X
X
-
-
-
A(M)V
A(M)V(3G)
RA(M)V(3G)
m
rb
rc
2lp
X
-
X
-
X
X
X
-
X
X
X
-
-
-
X
-
X
RA(M)V
v
RA(M)V
A(M)V
A(M)V(3G)
RA(M)V(3G)
X
X
-
X
Connectivity
l
p
s
s-pt
Connecting set
X
X
X
End assembly
X
X
-
m
rb
rc
2lp
X
-
X
-
X
X
-
X
-
X
rb
rc
2lp
v
A(M)V
m
A(M)V(3G)
RA(M)V(3G)
Locks and interlocks
l
p
s
s-pt
Earth connection OPEN
X
X
-
X
X
X
-
X
-
X
Earth connection CLOSED
X
X
-
X
X
X
-
X
-
X
Switch OPEN
X
-
X
X
X
X
-
-
-
X
Switch CLOSED
Earth connection CLOSED +
OPEN
Opening the cable access
cover
X
X
X
-
-
-
-
-
X*
RA(M)V
X
X
-
X
-
X
-
X
-
X
-
-
-
-
-
-
X
-
X
-
rb
rc
2lp
v
A(M)V
m
A(M)V(3G)
RA(M)V(3G)
Others
l
p
s
s-pt
Control box
Auxiliary profiles for anchorage
to the floor
Lateral incoming cable box
X
X
X
X
X
X
X
X
-
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
-
X
-
X
RA(M)V
(*) Only in feeder functional units
68
Page
Page6565ofof6868
General INSTRUCTIONS
instructions for FOR
GENERAL
cgm.3
CGM.3system
SYSTEM
Medium
voltage cubicles
MEDIUM VOLTAGE
CUBICLES
insulated
SF66INSULATED
SF
IG-136-EN
version 09
04.02.2015
8.2. Environmental information
cgm.3 cubicles are defined as a sealed, pressurised system, according to IEC 62271-1 ,
which contains sulphur hexafluoride (SF6)[12].
SF6 is included in the Kyoto Protocol list of greenhouse gases. SF6 has a GWP (Global
Warming Potential) of 22 200 units. (TAR, IPCC 2001)
At the end of the product's life, the SF6 contained in it must be recovered for processing and
recycling, to prevent it being released into the atmosphere. Extracting and handling of SF6
must be carried out by qualified personnel, using a sealed bored system.
For the usage and handling of the SF6, the indications listed in IEC 62271-303 must be
followed.
The management and treatment of the rest of materials must be carried out in accordance
with the country’s current legislation.
[12]
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This information is given on a label on the equipment itself.
IG-136-EN
General
Instructions
GENERAL
INSTRUCTIONS
cgm.3SYSTEM
system
CGM.3
Medium
voltageCUBICLES
cubicles
MEDIUM
VOLTAGE
SF
insulated
6
SF6 INSULATED
version 09
04.02.2015
Notes
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68
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