• What are the main categories of control relays

    Use and classification of control relays Control relays are an automatic electrical appliance that is suitable for long-distance connection and disconnection of AC and DC small-capacity control circuits and for control, protection and signal conversi...

  • What are the symptoms of a broken car relay

    will fail to start. If the ignition switch relay is broken, the car will not start, and if the power window relay is broken, the car's power windows will not be able to raise and lower. There are multiple relays on the car that control multiple lines...

  • How many types of relays are there

    As one of our common switching devices, relays belong to a class of controllable switches. Relays are widely used, especially in electrical control. Since there are more than one or two types of relays, they are sometimes confused. Next, let's learn ...

  • What is the difference between voltage relay and current relay

    The difference between the current relay and the voltage relay in structure. Mainly the coils are different. The coil of the current relay is connected in series with the load to reflect the load current, so the number of coil turns is small and the ...

  • What are the selection conditions for relays

    First, understand the necessary conditions: 1. The power supply voltage of the control circuit and the maximum current that can be provided; 2. The voltage and current in the controlled circuit; 3. How many groups and what form of contacts are requir...

  • What is the function of the relay coil

    A relay is an electrical control device, which is an electrical appliance that makes a predetermined step change in the controlled quantity in the electrical output circuit when the change of the input quantity (excitation quantity) reaches the speci...

  • What are the common faults of relays

    For electromagnetic (voltage, current, intermediate) relays, the sensing mechanism is an electromagnetic system. The faults of the electromagnetic system are mainly concentrated in the coil and the moving and static iron cores. (1) Coil Troubleshooti...

  • What are the technical parameters of the main products of the relay

    The technical parameters of the main products of the relay have five aspects. 1. Rated working voltage It refers to the voltage required by the coil when the relay is working normally. Depending on the model of the relay, it can be either AC voltage ...