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What is the scope of use of AC contactors?
- Also note that the voltage applied to the power supply is much (220V or 380V), are generally markeds
How to get the relay time parameter
- Therefore, when the contact circuit is connected to the AC circuit, the contact instantaneous value between the contacts to determine the size of the contact closed and off the state, the error will be great, so no accurate value.s
Dynamic Measurement Technology of Contactors and Comprehensive Evaluation Method
- Through the establishment of the comprehensive evaluation model of the contactor performance, the dynamic evaluation system of the contactor dynamic performance is formeds
How to measure the contactor is good or bad
- Look: A, see if it works. B, boot, such as contactor pull, then the fan work, press does not work (set the capacitor is good), can initially determine the contactor bads
Similar terms for contactors and relays
- Therefore, as the first floor of a friend said, large capacity of the contactor are generally equipped with an arc cover (because the high current disconnect will produce arc, do not use arc extinguishing, head).s
What are the types of AC contactors?
- other parts: a shell, spring, short circuit, transmission and so on.s
Various types of contactors are classified
- This non-contact power electronic switch circuit does not produce arc, which avoids the traditional contactor arc on the contact material of electrical wear, it greatly increases the contact life and reliabilitys
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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