Electrical Equipment Testing and Commissioning is the process of verifying, calibrating, and validating electrical installations to ensure they operate safely, efficiently, and in accordance with design specifications. It involves inspection, functional testing, performance measurement, and safety checks of equipment such as transformers, switchgear, motors, control panels, protection relays, and cable systems.

The commissioning stage ensures that all components are correctly installed, interconnected, and integrated with control and protection systems. It includes pre commissioning checks, energization procedures, load tests, protection relay coordination, and final performance verification