PSERC
04/06/04
3
Why Relay Testing?
•This varies according to specific needs:
•   - verify that a relay product is acceptable
•     (production)=Type test
•   - verify that  relay settings are calibrated and
•     connected correctly=Commissioning test
•   - verify that a relay maintains correct calibration of
•     settings=Periodic maintenance test
•   - verify that the performance for a given application is
•     adequate=Application test
•   - explain relay miss operation= Troubleshooting test