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What is the effect of the open contact of the AC contactor and the pushbutton switch?
- Long connection, that is, on the basis of the jog, stop the button on the back and then connect a line to the contactor normally open the end of the auxiliary contact, the other end of the auxiliary contact connected to the coil contacts, This contact is connected to the start buttons
Determine whether the AC contactor can cut off the short circuit current?
- Since the contact system is linked with the moving core, the movable iron core drives the three action contacts at the same time, the main contact closes, and the main Contact mechanical connection of the auxiliary normally closed contact opens
Get the method of the relay time parameter
- In the process of contact will produce bounce, and finally to achieve a stable state, during which the microcontroller data collected or 0 or 1. Set the sampling period of the microcontroller 0.01ms, the data collected by the microcontroller address value multiplied by the sampling period, that is, the required action time. s
What is the power contactor
- AC contactor using the main contact to open and close the circuit, with auxiliary contacts to control the implementation of instructions.s
How to connect the DC contactor to the circuit?
- Have you seen the satellite days someone to close the knife? Dangerous high-current gate knife when the arc is woundings
he three-phase AC contactor has several wiring ports
- the auxiliary contact is switched on and the normally closed contact is switched to off. According to this principle to apply, widely used, not detaileds
What types of contactors can be divided into?
- The key points and heavy difficulties. DC contactor permanent magnet actuator is a traditional DC contactor electromagnetic actuator based on the development of the electromagnetic actuator and permanents
Permanent magnet AC contactor working principle
- keeping and releasing. The variable polarity of the soft magnet is generated by the electronic module with which it is solidified to produce a positive and negative pulse current of ten to twenty milliseconds, resulting in a different polaritys
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