ABB ret650 Commissioning Manual

Also see for ret650: Applications manual Commissioning manual Commissioning manual Product guide Applications manual

Contents

Values of the logical signals for OEXPVPH are available on the local HMI underMain menu/Tests/Function status/Voltage/OEXPVPH(24,U/f>)/1:OEXPVPH.The Signal Monitoring in PCM600 shows the same signals that are available on thelocal HMI.6.5.4.1 Verifying the settings1. Enable function.2. Connect a symmetrical three-phase voltage input from the test set to theappropriate connection terminals of the overexcitation protection OEXPVPH.OEXPVPH is conveniently tested using rated frequency for the injectionvoltage and increasing the injection voltage to get the desired overexcitationlevel.3. Connect the alarm contact to the timer and set the time delay tAlarmtemporarily to zero.4. Increase the voltage and note the operate value V/Hz>.5. Reduce the voltage slowly and note the reset value.6. Set the alarm time delay to the correct value according to the setting plan andcheck the time delay, injecting a voltage corresponding to 1.2 · V/Hz>.7. Connect a trip output contact to the timer and temporarily set the time delaytMin to 0.5s.8. Increase the voltage and note the V/Hz>> operate value9. Reduce the voltage slowly and note the reset value.10. Set the time delay to the correct value according to the setting plan and checkthe time delay tMin, injecting a voltage corresponding to 1.2 · V/Hz>>.11. Check that trip and alarm contacts operate according to the configuration logic.12. Finally check that START and TRIP information is stored in the event menu.6.5.4.2 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/Voltage/OEXPVPH(24,U/f>)/1:OEXPVPH 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.6.6 Testing frequency protection functions6.6.1 Underfrequency protection SAPTUFPrepare the IED for verification of settings as outlined in 5.1 "Preparing the IED toverify settings".1MRK 504 126-UEN - Section 6Testing functionality61Commissioning Manual