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A circuit breaker essentially consists of fixed and moving contacts. What are they called? 

A circuit breaker essentially consists of fixed and moving contacts. What are they called?  Correct Answer Electrodes 

Circuit Breaker:

  • ​An electrical circuit breaker is a switching device that can be operated manually and automatically for controlling and protecting an electrical power system.
  • As the modern power system deals with huge currents, special attention should be given to the designing of a circuit breaker to ensure it is able to safely interrupt the arc produced during the closing of a circuit breaker.

 

Electrodes of Circuit Breaker:

  • A circuit breaker essentially consists of fixed and moving contacts, called electrodes. 
  • These contacts are placed in the closed chamber containing a fluid-containing medium (either liquid or gas) which quenches the arc formed between the contacts.
  • Under normal operating conditions, these contacts remain closed and will not open automatically until and unless the system becomes faulty.
  • The contacts can be opened manually or by remote control whenever desired.
  • When a fault occurs on any part of the system, the trip coils of the breaker get energized.
  • The moving contacts are pulled apart by some mechanism, thus opening the circuit.

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