The electrical equipment in the substation is divided into primary equipment and secondary equipment. The following is a brief introduction to the main equipment in the substation.
1. Primary equipment
Primary equipment refers to equipment that directly produces, transmits, distributes and uses electric energy, mainly including transformers, high-voltage circuit breakers, disconnectors, buses, lightning arresters, capacitors, reactors, etc.
2. Secondary equipment
The secondary equipment of the substation refers to the equipment that measures, monitors, controls and protects the operating conditions of the primary equipment and system. It mainly consists of relay protection device, automatic device, measurement and control device, metering device, automatic system and DC equipment that provides power for the secondary equipment.