Industry News

  • Thermal overload relay maintenance

    1. The installation direction of thermal relay must be the same as that specified in the product manual, and the error shall not exceed 5°.When the thermal relay is installed together with other electrical appliances, it should prevent the heating of other electrical appliances.Cover the heat rel...
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  • MCCB common knowledge

    Now in the process of using plastic shell circuit breaker, we must understand the rated current of plastic shell circuit breaker. The rated current of plastic shell circuit breaker is generally more than a dozen, mainly 16A, 25A, 30A, and the maximum may reach 630A. Common sense of plastic shell ...
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  • How the contactor interlock?

    Interlock is that the two contactors cannot be engaged at the same time, which is generally used in the motor positive and reverse circuit. If the two contactors are engaged at the same time, a short circuit between the power supply phase will occur. The electrical interlock is that the normally ...
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  • What is the different between AC contactor and DC contactor?

    1) What is the structural difference between the DC and AC contactors in addition to the coil? 2) What are the problem if the AC power and voltage connect the coil at the rated voltage of the coil when the voltage and current are similar? Answer to Question 1: The coil of the DC contactor is rela...
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  • How to select AC contactor

      The selection of contactors shall be conducted according to meet the requirements of the controlled equipment. Except that the rated working voltage shall be the same as the rated voltage of the charged equipment, the load rate, use category, operation frequency, working life, installatio...
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  • AC contactor application

    When talking about the AC contactor, I believe that many friends in the mechanical and electrical industry are very familiar with it. It is a kind of low-voltage control in the power drag and automatic control system, used to cut off the power, and control the large current with a small current. ...
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  • Three phase electricity will be limited in all China industrial zone

    Recently, many places across the country have limited electricity and production.As one of the most active economic development regions in China, the Yangtze River Delta is no exception. Corresponding measures include enhance planning, leave enough time for enterprises; increase accuracy, adjust...
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