ABB Relion 670 series - Function Revision History; Measuring the Operate Limit of Set Values

Logical signals for BRPTOC protection are available on the local HMI under Main menu /Settings /IED
Settings /Current protection /OvercurrBinRel (50, 3I>) /BRPTOC (50, 3I>):x .
The Signal Monitoring in PCM600 shows the same signals that are available on the local HMI.
11.5.11.1 Function revision history
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Document
revision
Product
revision
History
A 2.2.1 -
B 2.2.1 -
C 2.2.2 -
D 2.2.3 -
E 2.2.3 -
F 2.2.4 -
G 2.2.4 -
H 2.2.4 -
J 2.2.5 New function release
11.5.11.2 Measuring the operate limit of set values
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1. Check that the input logical signals BLOCK and BLKTR and the output logical signal TRIP are all
logical zero.
2. If required, activate the input on the BRPTOC function block.
3. Set MeasType to DFT for overcurrent operation.
4. For a short while inject a current (fault current) in phase L1 to about 110% of the set operating
current I>, and switch the current off.
Observe to not exceed the maximum permitted overloading of the current circuits in the IED.
5. Switch the fault current on and observe that STL1 and START appears. Also, measure the
operating time of BRPTOC.
Use the TRIP signal from the configured binary output to stop the timer. Repeat step 4 and step 5
by changing MeasType to Peak and Peak-to-peak and observe the operate time of BRPTOC.
6. Activate the input BLOCK on the BRPTOC function block.
7. Switch on the fault current (110% of the setting) and observe.
No STL1, START, and TRIP signal should appear.
8. Switch off the fault current.
9. For a short while inject a current (fault current) in same phase to about 90% of the set operating
current, and switch the current off.
10. Switch the fault current on and observe.
No STL1, START, and TRIP signal should appear.
11. Switch off the fault current.
12. If required, reset the ENABLE binary input.
13. Switch the fault current on.
No STL1, START, and TRIP signal should appear.
14.
15. Repeat the above steps by injecting fault current in phase L2 and L3.
1MRK 504 165-UUS Rev. J Section 11
Testing functionality by secondary injection
Transformer protection RET670 187
Commissioning manual
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