Collecting units
Range of enclosures for HV substations
HV substations
The solution for
> HV/HV and HV/MV
substations
dp_011_a
Strong points
3TT 3TC enclosure
These enclosures are designed to regroup the
intermediary connections between:
• The voltage and current measurement
transformers or the tapchanger terminals of
the transformer and the LV control cabinet.
Advantages
Weather conditions
The enclosures are MINIPOL boxes (see the
SOCOMEC general catalogue), with excellent
resistance to weather conditions and UV.
46
Public distribution catalogue
Turnkey enclosures
The enclosures are delivered assembled and
pre-wired. They are ready to be installed on
delivery.
Flexible configuration
With these scalable solutions, SOCOMEC can
adapt the solution to best suit your needs.
Do not hesitate to contact us for more
information.
Easy wiring
Weather conditions
Turnkey enclosure
Flexible configuration
Compliance with standards
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Function
Easy wiring
The careful design of these enclosures
provides a functional connection of the
cables on the different terminals and devices.
Connecting the input and output cables at the
base of the enclosures is made easier with a
removable plate, or, on request, grommet or
glands.
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S705
HN 46-R-01
IEC 61439
IEC 60269
IEC 60947-3
Collecting units
Range of enclosures for HV substations
TT collecting units
Composition
Characteristics
coff_402_a
TT enclosures, designed to regroup and protect the
circuits between the voltage transformers and the
LV control cabinet, are equipped with:
• IP43 aerator mounted on each side of the
enclosure.
• A condensate outlet device is mounted on the
base section.
• Busbar and crossover grounding stud.
• Removable closing plate on the base.
• Enclosure nameplate on the door.
This enclosure is mounted, assembled
and pre-wired.
Fibreglass-reinforced polyester
Colour RAL 7035
Enclosure material
IP
Enclosure IP55, aerator IP43
1 x 6mm² for voltage terminals;
1 x 25mm² for fuse disconnect switches
Connecting cables
References
Description
Internal devices
Reference
1TT enclosure
1 fuse disconnect switch 1P+N equipped with 10Agl fuses
8 M6/8 voltage cable terminals
7P70 0001
2TT enclosure
2 fuse disconnect switches 1P+N equipped with 10Agl fuses
10 M6/8 voltage cable terminals
7P70 0002
3TT enclosure
1 fuse disconnect switch 3P+N equipped with 10Agl fuses
8 M6/8 voltage cable terminals
7P70 0003
Dimensions
H (mm)
W (mm)
D (mm)
1TT enclosure
Type
400
300
200
2TT enclosure
400
400
200
3TT enclosure
400
400
200
W-70
W+55
W+79
P
P-25
minip_005_b_1_gb_cat
E
H
20
H-30
W
D
H+54
H+30
H-58
MINIPOL
Public distribution catalogue
47
Collecting units
Range of enclosures for HV substations
3TC collecting units
Composition
Characteristics
coff_402_a
The 3TC enclosure, designed to regroup the
connections between the current transformers and
the LV control cabinet, is equipped as standard
with:
• IP43 aerator mounted on each side of the
enclosure.
• A condensate outlet device is mounted on the
base section.
• Busbar and crossover grounding stud
• Removable closing plate on the base
• Enclosure nameplate on the door
This enclosure is mounted, assembled and pre-wired.
Fibreglass-reinforced polyester
Colour RAL 7035
Enclosure material
IP
Enclosure IP55, aerator IP43
Connecting cables
1 x 10mm² for "current" terminals
References
Description
Internal devices
Reference
3TC enclosure
14 current connection terminals with a 10 mm² rod, 16 mm pitch.
7P70 0004
Dimensions
Type
3TC enclosure
MINIPOL
48
Public distribution catalogue
minip_005_b_1_gb_cat
W-70
W+55
W+79
P
P-25
H-30
20
E
H
H+54
H+30
H-58
W
D
H (mm)
W (mm)
D (mm)
400
300
200
Collecting units
Range of enclosures for HV substations
3TC collecting units
Composition
Characteristics
dp_011_a
The 3TT-3TC enclosure, designed to regroup
and protect the circuits between the voltage and
current transformers and the LV control cabinet, is
equipped with:
• IP43 aerator mounted on each side of the
enclosure.
• A condensate outlet device is mounted on the
base section.
• Busbar and crossover grounding stud
• Removable closing plate on the base
• Enclosure nameplate on the door
This enclosure is mounted, assembled and prewired.
Fibreglass-reinforced polyester
Colour RAL 7035
Enclosure material
IP
IP55 enclosure, IP43 aerator
1 x 6 mm² for voltage terminals,
1 x 10 mm² for current terminals and
1 x 25 mm² for fuse disconnect switches
Connecting cables
References
Description
Internal devices
Reference
3TT 3TC enclosure
1 fuse disconnect switch 3P+N equipped with 10Agl fuses
8 M6/8 voltage cable terminals
14 current connection terminals with a 10 mm² rod, pitch of 16 mm.
7P70 0005
Dimensions
Type
3TT 3TC enclosure
H (mm)
W (mm)
D (mm)
600
500
230
MINIPOL
minip_005_b_1_gb_cat
W-70
W+55
W+79
P
P-25
H-30
20
E
H
H+54
H+30
H-58
W
D
Public distribution catalogue
49
Collecting units
Range of enclosures for HV substations
Fuse disconnect switches on TT and 3TC enclosures
Composition
Characteristics
rm_070_a
rm_075_a
The RMSC is a 3-padlock modular fuse disconnect
switch equipped with additional security devices:
• A safety mechanism prevents any of the grippers
from unintentional opening. The user must pass
under the cradle to open the disconnector, making
this action absolutely voluntary.
• A system allows the cradle lock to be padlocked
when closed , making it impossible to open the
gripper in the event of the cradle coming away by
accident.
The switch is equipped with an auxiliary contact,
which can send a signal (fuse blown, fuse presence)
or have an early shut-off function.
IEC 60269-1,-2. CE compliance.
Electrical features according to
IEC 60947-3
Reference standards
Thermal current Ith (20 C)
50
Rated insulation voltage Ui
(V AC)
690
Prospective short-circuit current
(kA eff)
100
Rated impulse withstand
voltage Uimp (kV)
8
References
Description
Internal devices
Reference
RMSC 1P+N
50A, single-pole + neutral fuse disconnect switches with lock cradle and
auxiliary contact, for 14x51 cylindrical fuses
57C2 5032
RMSC 3P+N
50A, 3-pole + neutral fuse disconnect switches with lock cradle and auxiliary
contact, for 14x51 cylindrical fuses
57C2 5034
Characteristics
Copper wiring recommended
(mm2)
Fuse rating (A)
16 … 20
Max. torque
(Nm)
Available current adjustment
depending on the temperature
2.5
Temperature (°C)
25
4
20
1
32
6
30
0.95
3
K x In
40
8
40
0.9
50
10
50
0.8
Voltage and current
(rated values)
0.1 A to 10 A / 250 VAC
Voltage and current
(min operating values)
1 mA / 4 VDC
Temperature
-20 °C to + 125 °C
Dimensions
66
50
96
117
Public distribution catalogue
53
118,25
117
106
dp_067_a_1_x_cat
3P+N
96
1P+N
Collecting units
Range of enclosures for HV substations
Collecting units J and H
Composition
Characteristics
coff_402_a
J and H enclosures, designed to regroup the
intermediate connection between the power
transformer (J) or the auto-transformer (H) and the
LV control cabinet, are equipped as standard with:
• IP43 aerator mounted on each side of the
enclosure.
• A condensate outlet device is mounted on the
base section.
• Busbar and crossover grounding stud
• Removable closing plate on the base
• Enclosure nameplate on the door
This enclosure is mounted, assembled
and pre-wired.
Fibreglass-reinforced polyester
Colour RAL 7035
Enclosure material
IP
IP55 enclosure, IP43 aerator
1 x 6mm² for voltage terminals and 1 x
10mm² for current terminals
Connecting cables
References
Description
Internal devices
Reference
Enclosure J
60 M6/8 voltage cable terminals
6 current connection terminals with a 10 mm² rod, pitch of 16 mm.
7P70 0006
Enclosure H
15 M6/8 voltage cable terminals
11 current connection terminals with a 10 mm² rod, pitch of 16 mm.
7P70 0007
Dimensions
H (mm)
W (mm)
D (mm)
Enclosure type J
Type
800
600
300
Enclosure type H
400
400
200
MINIPOL
minip_005_b_1_gb_cat
W-70
W+55
W+79
P
P-25
H-30
20
E
H
H+54
H+30
H-58
W
D
Public distribution catalogue
51