Substation Commissioning: A 12-Point Field Checklist
From insulation resistance to SCADA hand-shake — the checks that actually catch defects before energization.
Pre-energization commissioning is the last line of defense. Skipping a step can cost millions in downtime and, worse, cost lives.
Our 12-point checklist covers Megger insulation tests, Doble power-factor tests on transformers, CT/PT polarity, relay secondary injection, busbar protection stability, breaker timing, SCADA point-to-point, earthing impedance, oil DGA baselines, fire system interlocks, tower/cable bonding, and operator handover documentation.
Each point must be signed off by a competent engineer; verbal confirmation is not commissioning.
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