• How many position states does the circuit breaker have?

    A circuit breaker is a protective device commonly used in power systems. It can automatically cut off the power supply when a circuit breaks down to protect electrical equipment and personal safety. The position state of the circuit breaker...

  • Causes and Elimination Methods of Automatic Disconnection of Circuit Breaker During Operation

    DC Circuit Breaker--Causes and Elimination Methods of Automatic Disconnection of Circuit Breaker During Operation 1. The reason why the circuit breaker is automatically disconnected when starting the motor: 1. Th...

  • 7 knowledge points for electricians on circuit breakers

    1. Introduction of vacuum circuit breaker 1.1 What is a vacuum circuit breaker? "Vacuum circuit breaker" is named because the arc extinguishing medium and the insulating medium of the contact gap after arc ex...

  • Blackout test! What to do if the circuit breaker won't reset?

    If the circuit breaker on the panel won't reset, don't assume it has to be repaired. Most likely the circuit breaker is just doing its job and tripping to protect the circuit. The problem could be a bad connection to an outlet, appliance...

  • What is a "circuit breaker"? Its main function?

    1. Introduction to "circuit breaker" 1.1 What is a "circuit breaker" A circuit breaker is a switching device that can close, carry and break current under normal circuit conditions and can close, carry and break ...

  • The difference between relays and contactors

    different loads 1. Contactors are used for load types that have high voltage, high current, or both. Generally speaking, it is used for equipment passing more than 15 amps or more than 3kW load. For lower quantities, normal rela...

  • Basic knowledge that relays should understand

    The definition of relay: a relay is an automatic control system component that will produce a jumping change in cardiac output when the output (electricity, magnetism, sound, light, heat) reaches a certain value. First, the p...

  • What is the function of an automotive relay?

    The function of the automotive relay is to control the magnitude and on-off of the current. The following is a detailed introduction about automotive relays: 1. Automobile relay is an automatic control device whose output will c...