What is a High Voltage Circuit Breaker?

What is a High Voltage Circuit Breaker?

High Voltage Circuit Breaker definition

A type of circuit breaker used in power systems with a rated voltage of 35KV and above, used to cut or switch on loaded or unloaded circuits, as well as faulty circuits.

High Voltage Circuit Breaker components

• Conductive part : responsible for the conduction of current

• ‌Insulation part : prevent electric shock accident

• ‌Operating mechanism : through the contact parting, ‌ closing action to realize the circuit to break and close. ‌

• Arc extinguishing part : responsible for extinguishing arc, ‌ to prevent arc reignition.

Main parameter

• Short-time withstand current

• Rated short-circuit breaking current

• Rated short circuit duration

Mode of operation

• Manual operation

• Automatic operation