ABB REC650 Commissioning Manual

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ABB REC650 Commissioning Manual Manual pdf 64 page image

6.3.9.2 Completing the testContinue to test another function or end the testing by setting the parameterTestMode to Off under Main menu/Tests/IED test mode/1:TESTMODE. Ifanother function is tested, then set the parameter Blocked to No under Main menu/Tests/Function test modes/Current/CCRPLD(52PD)/X:CCRPLD for thefunction, or for each individual function in a chain, to be tested next. Remember toset the parameter Blocked to Yes, for each individual function that has been tested.6.3.10 Broken conductor check BRCPTOCPrepare the IED for verification of settings as outlined in 5.1 "Preparing the IED toverify settings".Values of the logical signals for BRCPTOC are available on the local HMI underMain menu/Tests/Function status/Current/BRCPTOC(46,lub)/X:BRCPTOC.The Signal Monitoring in PCM600 shows the same signals that are available on thelocal HMI.6.3.10.1 Measuring the operate and time limit of set values1. Check that the input logical signal BLOCK to the BRCPTOC function blockis logical zero and note on the local HMI that the output signal TRIP from theBRCPTOC function block is equal to the logical 0.2. Set the measured current (fault current) in one phase to about 110% of the setoperating current IP>.Observe to not exceed the maximum permitted overloading of the currentcircuits in the terminal.3. Switch on the fault current and measure the operating time of BRCPTOC.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 setvalue 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 setoperating 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.Section 6 1MRK 511 248-UEN -Testing functionality56Commissioning Manual