Protective Relay Calibration and Functional Test Inspection
Protective Relay Calibration and Functional Test Inspection
Inspection template for documenting protective relay calibration, pickup verification, timing, trip testing, and as-left settings against the coordination study during commissioning or factory acceptance testing.
Inspection Details
- Inspection date and time recorded
- Facility, switchgear lineup, or test location identified
- Relay make, model, and serial number documented
- Applicable coordination study or settings sheet referenced
- Test type selected
Safety Preconditions and Test Readiness
- Lockout-tagout applied where required and test boundaries established
- Qualified person or competent person performing the test
- Arc-flash and shock PPE selected per job hazard analysis
- Test equipment calibrated and within current certification date
- Primary and secondary injection setup verified against the test plan
Relay Identification and Visual Condition
- Relay identification matches the one-line diagram and test plan
- Control power, CT, and VT wiring labels are present and legible
- Terminal blocks, covers, and seals intact with no visible damage
- No signs of overheating, contamination, loose connections, or moisture intrusion
- Relay target indicators, LEDs, and event flags cleared or documented before test
Pickup and Timing Verification
- Phase overcurrent pickup verified against settings
- Ground fault pickup verified against settings
- Measured trip time for primary protection element
- Measured timing is within coordination study tolerance
- Trip output operated the intended breaker or trip circuit
As-Left Settings and Functional Trip Verification
- As-left pickup settings match the approved coordination study
- Time dial, curve, and logic settings match the approved test record
- Trip circuit continuity and breaker trip coil operation verified
- Protection scheme operated as intended during functional test
- Test results and as-left values documented in the final report
Deficiencies, Corrective Actions, and Sign-Off
- Deficiencies or non-conformances recorded
- Corrective actions assigned with responsible party and due date
- Inspector signature
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