ABB Relion 670 Series Commissioning Manual page 118

Section 10
Testing functionality by secondary injection
Logical signals for BRPTOC protection are available on the local HMI under Main menu /
Settings /IED Settings /Current protection /OvercurrBinRel (50, 2I>) /BRPTOC (50, 2I>):x .
The Signal Monitoring in PCM600 shows the same signals that are available on the local HMI.
10.5.8.1 Function revision history
Document
revision
A
B
C
D
E
F
G
H
10.5.8.2 Measuring the operate limit of set values
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 RELEASE 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).
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.
No STL1, START, and TRIP signal should appear.
11. Switch off the fault current.
12. If required, reset the RELEASE binary input.
13. Switch the fault current on.
No STL1, START, and TRIP signal should appear.
14. Switch the fault current off.
15. Repeat the above steps by injecting fault current in phase L2.
10.5.8.3 Completing the test
Continue to test another function or end the test by changing the TESTMODE setting to Off. Restore
connections and settings to the original values, if changed for testing purposes.
112
Product History
revision
2.2.1 -
2.2.1 -
2.2.2 -
2.2.3 -
2.2.3 -
2.2.4 -
2.2.4 -
2.2.5 Setting MeasType to select between DFT, Peak, and Peak to peak measurement modes
is added.
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Commissioning manual