ABC0001
EXTENDED RESERVE COMPLIANCE REPORT
COMPANY NAME
TEST DATE
REPORT DATE
Example Compliance Report-ABC0001
This Compliance Report template is intended to demonstrate the depth of information expected to allow
review of whether the installation meets the Technical Requirement Schedule (TRS).
Whilst a specific type of relay is used in this template the system operator does not endorse any
particular relay or circuit design, it is expected that the Extended Reserves Provider will customise the
report and the headings to meet the specific requirements of their installation and the extended reserves
blocks being offered.
Contact Details
Participant
Testing company
Transpower
*If different
participant
*optional
from
Extended
Reserves
Manager
*optional
Name:
Company:
Title:
Email:
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Example Compliance Report-ABC0001
1. SUMMARY INFORMATION
Description
Detail
Participant ID:
Demand Unit ID:
GXP:
AUFLS Block
Reference:
Operating Time
(ms):
Test date:
Report Purpose:
Routine Test / Grid Event
(please circle one)
Self-monitoring digital
yes / no
(please circle one)
Included in Appendix 1 yes / no
(please circle one)
_________________
(if no, please enter Demand Unit ID of the Report that
contains the Schematic Design)
Pass / Fail
(please circle one)
Optional -
(please reference any legacy AUFLS scheme to tested
as a Demand Unit for Extended Reserves)
Armed Status (asleft):
Start (Armed) Date:
Scheme Type:
Schematic Design:
Test Status:
Test Equipment:
Test Equipment
Calibration Date:
Legacy Unit ID:
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Example Compliance Report-ABC0001
2. TABLE OF CONTENTS
1.
Summary information ....................................................................................................................... 3
2.
Table of Contents ............................................................................................................................. 4
3.
List of Abbreviations......................................................................................................................... 5
4.
Test Summary.................................................................................................................................. 5
5.
Test Details ...................................................................................................................................... 6
6.
5.1.
Bench test ............................................................................................................................... 6
5.2.
Commissioning/maintenance test ........................................................................................... 6
5.3.
End to end test ........................................................................................................................ 6
Work still to be completed ................................................................................................................ 6
Scheme design and Technical Specs ............................................................................. 7
Scheme Design and technical specifications .......................................................................... 7
Relay and Instrument Diagram ............................................................................................... 7
DC Control and Relay Logic Diagram ..................................................................................... 7
Settings and Trip Equations .................................................................................................... 9
Control Diagram ............................................................................................................ 11
SEL-351S *COMPANY’s* Manufacture and Custom Logic [1] ........................................... 11
Background Reference Communications ..................................................................... 12
Works Cited ................................................................................................................... 13
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Example Compliance Report-ABC0001
3. LIST OF ABBREVIATIONS
Abbreviation
Description
ER
Extended reserve
AUFLS
Automatic under-frequency load shedding
TRS
Technical Requirements Schedule
T&Cs
Terms and Conditions
ERM
Extended Reserve Manager
SO
System Operator
CTs
Current transformers
VTs
Voltage transformers
SEL
Schweitzer Engineering Laboratories, Inc.
R&I
Relay and instrument
RoCoF
Rate of change of frequency
DU
Demand unit
SCADA
Supervisory control and data acquisition
4. TEST SUMMARY
The following summary lists typical tests that can be undertaken to demonstrate compliance. Further
information on testing is available in the Companion Guide for Testing Assets which can found on the
System Operator Website in the Resources for Asset Owner, Asset Testing section.
Table 1: Summary of Evidence of Compliance.
TRS clause
Proof of compliance
Details
10-15
Testing end to end operation 10. Frequency set point(s)
11. Voltage Guard
12. Total Operating Time
13. Block settings
14. Time delays
15. Logic functionality
17-18
New and existing systems
19
After
maintenance
upgrading
To be tested as above with appropriate frequency
or System to be tested
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Example Compliance Report-ABC0001
5. TEST DETAILS
***
In this section all tests performed should have a procedural brief explained with results
displayed and concise details around displayed status of compliance.
***
Examples of tests and graphical results to prove compliance are detailed in the companion
guide for asset testing document.
***
The test plan and switching procedure if applicable should be summarized here.
***
Appendix 2 allows detailed description of logic blocks used
***
Appendix 3 allows relevant emails to be incorporated into this report
5.1.
***
5.2.
***
5.3.
***
BENCH TEST
Details of any acceptance or conformity tests conducted prior to wiring the device at site should
be explained detailing results in terms of compliance with TRS.
COMMISSIONING/MAINTENANCE TEST
Details of tests conducted on site with kit (wiring, devices or settings) of the scheme partially
installed should be explained detailing results in terms of compliance with TRS.
END TO END TEST
Details of final tests with all scheme equipment and settings in a as left state should be
explained detailing results in terms of end to end compliance with TRS.
6. WORK STILL TO BE COMPLETED
***
In this section a brief conclusive summary of compliance should be discussed and any future
work explained.
***
If there is any relevant communication with ERM or system operator (SO) it should be
referenced here and cited via appendix to aid in transparency and efficiency.
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Example Compliance Report-ABC0001
Scheme design and Technical Specs
Scheme Design and technical specifications
This section should be replaced with details of the AUFLS scheme being tested unless this is the second
or later report detailing a common design utilised by an individual participant, in which case the first
such report should be referenced in Section 1 and this Section left blank.
Relay and Instrument Diagram
The AUFLS scheme is made up of one Schweitzer Engineering Laboratories, Inc.(SEL) 351S feeder
sensing/control relay with a locked down firmware version of *#.##* and installed as shown in the high
level relay and instrument (R&I) diagram below.
Figure 1: High level R&I diagram for a SEL-351S protection system. [1]
The relay has many protection duties other than AUFLS and primarily used for feeder protection.
***
Should there be any other elements that will impact AUFLS operation such as auto transfer
schemes or complex bus operations it should be included in the R&I diagram and appropriately
explained.
DC Control and Relay Logic Diagram
***
The R&I diagram is only a small part of aiding in the understanding of how the protection is
designed to operate. It is recommended that a standard AUFLS protection control diagram is
constructed that allows for flexibility in application, refer to Appendix A for an example. The
parts of logic and control elements used for AUFLS in the diagram should be explained
concisely, similar to that shown in this subsection.
The SEL-351S is a standard feeder protection system for our [example] company and there is a
standard control and logic diagram our [example] company uses to reduce design difficulty, technician
time and human error in application of the most common feeder protection jobs. In Appendix A the
entire standard control and logic diagram shows flexibility with many possible features and designs by
maximizing the number of available blocks to be armed for an AUFLS system. This demand unit was
selected only for block 1, but the company has decided to test the rate of change of frequency (RoCoF)
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Example Compliance Report-ABC0001
element for all selected AUFLS systems, regardless of block selection. In testing the compliance of
block 4 there is an increase in the flexibility to enable the unit for use as a RoCoF block with minimal to
no testing required. With this known the standard control and logic diagram is reduced down to
represent only the active protection elements and those tested for future use, as shown in the following
control and logic diagram.
Figure 2: AUFLS feeder logic diagram of a SEL-351S protection system. [1]
As shown in the DC Control Logic block of the feeder logic diagram above, this scheme is designed to
trip with OUT101 contact and there is no other supervisory contact in series with this contact to
disrupt the trip signal. This feeder protection can be enabled by a push button on the front face of the
relay box (ie No manual panel mounted protection disconnect switch is in this design). The trip coil
circuit is monitored by the IN106 input of the SEL-351S unit in order to capture breaker opening times
for end to end TRS testing compliance. The trip coil status logically “AND”s with the protection enable
push button and will be visible for operational situational awareness via SCADA. (eg this is not shown
in the logic diagram just informational)
The block 1 setting logic is programmed to the 81D1 protection element as show in the AUFLS
frequency pickup logic in Figure 2 above. The under voltage requirement for block 1 is programmed as
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Example Compliance Report-ABC0001
per the logic diagram to the 27B81 under voltage element of the SEL device as per clause 15 Figure 1
of the TRS. This logic is all standard manufacture logic and easily accessible in the appropriate SEL
manual.
The RoCoF logic was not left active in the trip equation for the ABC0001 DU, as this demand unit is
selected for block 1 at this time. A RoCoF element (81R1), under voltage element (81RT), and a
secondary pickup logic (81DX) were tested to confirm compliance with clause 15, Figure 4 of the TRS
so it can easily be enabled in the future. To avoid confusion, the primary and secondary pickup logic
settings have not been included in the reduced feeder logic diagram above for this report. In the future
if block 4 in selected for this DU an updated report will be completed. This logic is standard manufacture
logic and detailed information is readily available in the appropriate SEL manual.
Settings and Trip Equations
***
In this section only setting that are required to prove compliance with the TRS should be listed.
If there are any calculations, custom latching (such as front panel buttons here) or tuning of
protection settings to meet TRS they should be explained in detail to prove compliance. See
companion guide for asset testing of AUFLS for more details such as RoCoF calculation details
that may need to be provided such as in SEL-351S.
All the as left AUFLS protection settings are “like for like” to the TRS block 1 requirements. They relevant
AUFLS setting left in the ABC0001 demand units SEL 351s device are displayed below.
[1]
***
The RoCoF relay setting is not included in this report to avoid compliance confusion, if DU was
selected for block four the report would be updated.
The trip settings left in the relay includes 50, 51 and 51N overcurrent feeder protection elements of
which are detailed in ReportXXXX.XX. The block 1 trip settings are set to 81D1T with a time delay
81D1D and a supervisory IN105 input element. The IN105 input is latched (internally programed) to the
disable AUFLS push button (PB10) on the front face of the SEL 351S device. This push button was left
in the enable protection position and is confirmed with the SCADA status. The supervisory push button
(PB10) is company standard to aid field personal in easily disabling protection elements. The trip
equation left in the relay is shown below.
𝑇𝑟𝑖𝑝 𝐸𝑞𝑢𝑎𝑡𝑖𝑜𝑛 = 50 + 51 + 51𝑁 + 81𝐷1𝑇 ∗ ! 𝐼𝑁105
The drive to lock out function in the SEL 351S is to bypass (disable) reclosing protection on the feeder
in the event of a block 1 (81D1T) AUFLS trip. The block 1 drive to lock out signal is programed with a
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Example Compliance Report-ABC0001
supervisory element as explained in the trip equation section of this report as per company standard,
though it is a redundancy of no impact. The scheme has ability for SCADA control to disable feeder
reclosing and this is done using IN104, this input into the drive to lock out equation has no impact on
AUFLS operation. The protection scheme’s as left drive to lock out equation is shown below for clarity.
79𝐷𝑇𝐿𝑑𝑟𝑖𝑣𝑒 𝑡𝑜 𝑙𝑜𝑐𝑘 𝑜𝑢𝑡 = 81𝐷1𝑇 ∗ ! 𝐼𝑁105 + ! 𝐼𝑁104
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Example Compliance Report-ABC0001
Control Diagram
SEL-351S *COMPANY’s* Manufacture and Custom Logic [1]
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Example Compliance Report-ABC0001
Background Reference Communications
***Detail any emails relevant to the compliance status of this demand unit:
to/from ER Provider; System Operator; and/or ER Manager
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Example Compliance Report-ABC0001
Works Cited
***some diagrams form the SEL manual are reproduced and/or edited to fit this example.
[1] SCWEITZER ENGINEERING LABORATORIES, INC., “SEL-351S Instruction Manual,” Date
Code 20100315.
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