• Water purification water map

    Water purification water map...

  • Classification of relays

    Because the actual functions, installation, wiring, and symbols are different, relays are therefore divided into many types. Generally speaking, their types can be classified according to reflected signals, operating principles, operating t...

  • Function and symbol of time relay

    To put it simply, it belongs to a type that starts from receiving an input signal (that is, when the coil is energized or de-energized) and outputs a signal after a preset time delay (contact closing or opening action) Relay. The time relay...

  • The role and symbol of the current relay

    It usually needs to work according to the current signal, and also determines the contact action according to the current of the coil. When installed and used, the current relay coil needs to form a series connection with the load circuit....

  • Functions and symbols of voltage relays

    From the point of view of the name, it can be roughly understood that its main principle is to work according to the voltage signal, and to determine the action of the contact according to the magnitude of the coil voltage. When the coil is...

  • Application of relay in DC charging pile

    Application of relay in DC charging pile In the charging pile, the system cooperates with the system to automatically charge and disconnect the charging pile, and automatically detects and protects it to prevent improper operations such as...

  • The role and symbol of the intermediate relay

    The role of the intermediate relay: it is to play the role of conversion and transmission of control signals, that is, its input signal is the coil power on and off signal, while the output signal is the contact action of the intermediate r...

  • The wiring diagram of Relay

    5 and 6 are a pair of common terminals, 1 and 2 are a pair of normally closed contacts, and 3 and 4 are a pair of normally open contacts. When 7 and 8 are not energized, 5-6 and 1-2 are connected. After energization, 1-2 will be disconnecte...