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1MRK 505 293-UEN B
7.3.11
Stub protection STBPTOC
Prepare the IED for verification of settings as outlined in section
settings.
Logical signals for STBPTOC protection are available on the local HMI underMain menu/Tests/
Function status/Current/STBPTOC(50STB)/STBPTOC:1/Inputs or Outputs
Values of the logical signals for STBPTOC are available on the local HMI under Main menu/
Tests/Function status/Current/STBPTOC(50STB,I>)/STBPTOC:1. The Signal Monitoring in
PCM600 shows the same signals that are available on the local HMI.
7.3.11.1
Measuring the operate limit of set values
1.
Check that the input logical signals BLOCK and RELEASE and the output logical signal
TRIP are all logical zero.
2.
Activate the input RELEASE on the STBPTOC function block
3.
For a short while inject a current (fault current) in one phase to about 110% of the set
operating current, and switch the current off.
Observe to not exceed the maximum permitted overloading of the current circuits in the
IED.
4.
Switch the fault current on and measure the operating time of STBPTOC.
Use the TRIP signal from the configured binary output to stop the timer. The operation
should be instantaneously.
5.
Activate the input BLOCK on the STBPTOC function block.
6.
Switch on the fault current (110% of the setting).
No TRIP signal should appear.
7.
Switch off the fault current.
8.
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.
9.
Switch the fault current on.
No TRIP signal should appear.
10.
Switch off the fault current.
11.
Reset the RELEASE binary input.
12.
Switch the fault current on.
No TRIP signal should appear.
13.
Switch the fault current off.
7.3.11.2
Completing the test
Continue to test another function or end the testing by setting the parameter
under Main menu/Tests/IED test mode/TESTMODE:1. If another function is tested, then set
the parameter
STBPTOC(50STB,I>)/STBPTOC:1 for the function, or for each individual function in a chain, to
be tested next. Remember to set the parameter
that has been tested.
7.3.12
Pole discordance protection CCRPLD
Prepare the IED for verification of settings as outlined in section
settings.
Values of the logical signals for CCRPLD are available on the local HMI under Main menu/
Tests/Function status/Current/CCRPLD(52PD)/CCRPLD:X. The Signal Monitoring in PCM600
shows the same signals that are available on the local HMI.
Breaker protection REQ650
Commissioning manual
Blocked to No under Main menu/Tests/Function test modes/Current/
© Copyright 2013 ABB. All rights reserved
Preparing the IED to verify
Blocked to Yes , for each individual function
Preparing the IED to verify
Section 7
Testing functionality
M14922-2 v7.1.1
M14922-6 v7
M14922-50 v4
TestMode to Off
SEMOD55625-59 v5.1.1
61
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