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  • What does rail transit mean

    Rail transit refers to a type of vehicle or transportation system in which operating vehicles need to run on specific tracks. Common rail transits include traditional railways, subways, light rails, and trams, while new rail transits include magle...

  • What are the household appliances?

    What are the household appliances? Household appliances include: 1. Refrigeration appliances. Including household refrigerators, cold drink machines, etc. 2. Air conditioner. Including room air conditioners, electric fans, ventilati...

  • What is the function of low voltage switch

    1. Low-voltage circuit breakers are mainly used in low-voltage circuits to protect electrical equipment from short circuits, or when the voltage is abnormal or the current is too high, the circuit breaker can avoid some dangerous accidents. 2. The...

  • What is an Electromagnetic Relay?

    Electromagnetic relays refer to relays made using the principle of electromagnetic induction. When the relay is energized, the coil of the relay generates electromagnetism, which closes the normally open contacts of the relay to work. what is a...

  • Why do you need to use an interlock circuit composed of 2 PNP and 2 NpN to control the magnetic latching relay?

    1. The magnetic latching relay is only a kind of relay and has no direct relationship with the self-interlocking circuit, which can organize the self-interlocking circuit. Second, the interlocking and self-locking of the relay is the need to reali...

  • What is the difference between a car relay and a fuse?

    1. Different in nature 1. The nature of the automotive relay: an automatic control device whose output will change in leaps and bounds when the input (electricity, magnetism, sound, light, heat) reaches a certain value. 2. The nature of the ...

  • What is a relay? What is it used for in the circuit?

    Relay (English name: relay) is an electrical control device, which is an electrical appliance that causes the controlled quantity to undergo a predetermined step change in the electrical output circuit when the change of the input quantity (excita...

  • How does the PWM pulse control the relay to work?

    multipoint control, Pulse relays are used to control resistive load circuits (such as incandescent lamps, low pressure halogen lamps, convection heaters) and inductive load circuits (such as fluorescent tubes, discharge lamps) The c...