ABB REC650 Commissioning Manual

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ABB REC650 Commissioning Manual Manual pdf 76 page image

6.6.1.2 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/Secondary system supervision/CCSRDIF(87,INd)/X:CCSRDIF for the function, or for each individual function in a chain, to betested next. Remember to set the parameter Blocked to Yes, for each individualfunction that has been tested.6.6.2 Fuse failure supervision SDDRFUFPrepare the IED for verification of settings as outlined in 5.1 "Preparing the IED toverify settings".Values of the logical signals for SDDRFUF are available on the local HMI underMain menu/Tests/Function status/Secondary system supervision/SDDRFUF/1:SDDRFUF. The Signal Monitoring in PCM600 shows the same signals that areavailable on the local HMI.The verification is divided in two main parts. The first part is common to all fusefailure supervision options, and checks that binary inputs and outputs operate asexpected according to actual configuration. In the second part the relevant setoperate values are measured.6.6.2.1 Checking that the binary inputs and outputs operate as expected1. Simulate normal operating conditions with the three-phase currents in phasewith their corresponding phase voltages and with all of them equal to theirrated values.2. Connect the nominal dc voltage to the DISCPOS binary input.• The signal BLKU should appear with almost no time delay.• No signals BLKZ and 3PH should appear on the IED.• Only the distance protection function can operate.• Undervoltage-dependent functions must not operate.3. Disconnect the dc voltage from the DISCPOS binary input terminal.4. Connect the nominal dc voltage to the MCBOP binary input.• The BLKU and BLKZ signals should appear without any time delay.• All undervoltage-dependent functions must be blocked.5. Disconnect the dc voltage from the MCBOP binary input terminal.6. Disconnect one of the phase voltages and observe the logical output signalson the binary outputs of the IED. BLKU and BLKZ signals shouldsimultaneously appear.BLKU and BLKZ signals should simultaneously appear.7. After more than 5 seconds disconnect the remaining two-phase voltages andall three currents.Section 6 1MRK 511 248-UEN -Testing functionality68Commissioning Manual