Switchyard Testing involves systematic assessment of outdoor high-voltage equipment used in power transmission and distribution networks. This service includes testing of circuit breakers, isolators, current transformers, voltage transformers, protection systems, busbars, and earthing arrangements. At SLPL, switchyard testing is performed using calibrated instruments and standard testing procedures to verify insulation integrity, mechanical performance, and electrical safety. Regular testing helps identify potential faults, ensures compliance with statutory standards, and maintains uninterrupted power flow across the network.