In the power system, electrical equipment is categorized into primary equipment and secondary equipment based on their functions which work in synergy to ensure the safe, stable, and efficient operation of the power system. This article focuses on primary equipment.
Electrical primary equipment directly participates in the generation, transmission, and distribution of electrical energy. Its core characteristic is handling high voltage and large current, undertaking the critical tasks of energy conversion and delivery.
Typical equipment includes:
● Circuit Breakers: Rapidly interrupt current during faults to protect system safety
● Transformers: Achieve voltage level conversion to optimize energy transmission efficiency
● Disconnectors and Busbars: Establish stable power pathways to ensure reliable connections between devices.
● Instrument Transformers: Precisely measure current and voltage, providing a data foundation for system monitoring.
Post time: Dec-27-2025