Values of the logical signals for BRCPTOC (46) are available on the local HMI under
Main menu/Tests/Function status/Current/BRCPTOC(46,lub)/BRCPTOC:X. The
Signal Monitoring in PCM600 shows the same signals that are available on the local HMI.
6.3.13.1 Measuring the operate and time limit of set values
1. Check that the input logical signal BLOCK to the BRCPTOC (46) function block is
logical zero and note on the local HMI that the output signal TRIP from the
BRCPTOC (46) function block is equal to the logical 0.
2. Set the measured current (fault current) in one phase to about 110% of the set
operating current IP>.
Observe to not exceed the maximum permitted overloading of the current circuits in
the terminal.
3. Switch on the fault current and measure the operating time of BRCPTOC (46).
TRIP is controlled by Gate 13 in the configuration.
Use the TRIP signal from the configured binary output to stop the timer.
4. Compare the measured time with the set value tOper.
5. Activate the BLOCK binary input.
6. Switch on the fault current (110% of the setting) and wait longer than the set value
tOper.
No TRIP signal should appear.
7. Switch off the fault current.
8. Set the measured current (fault current) in same phase to about 90% of the set
operating current IP>. Switch off the current.
9. Switch on the fault current and wait longer than the set value tOper.
No TRIP signal should appear.
10. Switch off the fault current.
6.3.13.2 Completing the test
Continue to test another function or end the testing by setting the parameter TestMode to
Disabled under Main menu/Tests/IED test mode/TESTMODE:1. If another function is
tested, then set the parameter Blocked to No under Main menu/Tests/Function test
modes/Current/BRCPTOC(46,lub)/BRCPTOC:X for the function, or for each
individual function in a chain, to be tested next. Remember to set the parameter Blocked to
Yes, for each individual function that has been tested.
6.3.14 Directional underpower protection GUPPDUP (37)
Prepare the IED for verification of settings as outlined in
5.1 "Preparing the IED to verify
settings".
1MRK 505 293-UUS A Section 6
Testing functionality
71
Commissioning manual
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