What constitutes switching cabinet

మార్పిడి క్యాబినెట్ is widely used in electric fields. Then ఏమి ఏర్పరుస్తుంది స్విచ్చింగ్ cabinet?

Switching cabinet is composed of contactor, relay, circuit breaker, switch, button, indicator light, PLC, sensor, motor, electrical box.

What constitutes switching cabinet-SPL- power transformer, distribution transformer, oil immersed transformer, dry type transformer, cast coil transformer, ground mounted transformer, resin insulated transformer, oil cooled transformer, substation transformer, switchgear