Possess extensive knowledge of switchgear components, protective devices, interlocking schemes, and control wiringPerform I/O verification, point‑to‑point checks, and sequence-of‑operations testingTroubleshoot breaker circuits, sync check circuits, PT/CT circuits, and protection elementsValidate paralleling with gensets and utility and confirm relay configurationsCoordinate with engineering on settings and coordination studies. Diagnose issues involving mechanical, electrical, controls, and network communication layersPerform root‑cause analysis on sync failures, load sharing imbalance, nuisance trips, communication faults, and power quality problemsAdjust CAT controller parameters to ensure stable and reliable performance.