It mainly refers to transformers, series reactors, power capacitors, composite appliances, circuit breakers, voltage transformers, high-voltage lightning arresters, coupling capacitors, power lines, wires and cables, grounding systems, generator sets, condensers, motors, enclosed buses, silicon controlled rectifier, etc.
Electrical equipment includes primary equipment and secondary equipment. the primary equipment is usually the equipment that generates, transmits and consumes electromagnetic energy at the same time, such as generator sets, transformers, overhead cables, distribution boxes, high-voltage switchgear, etc. the secondary equipment is the equipment for operation, maintenance, measurement and verification. For example, cables, distribution boxes, motors, socket switches, lighting fixtures, central air conditioners, domestic water heaters, electricity meters, etc.