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  • Analysis of several common failures of medium frequency furnace 1. after a period of drying, the shutdown is not good
  • 2018/1/6 number of times read:[872]
  • Fault phenomenon: the furnace of smelting furnace or knot, starting at the beginning of oven can, the voltage can be increased to the maximum, but the oven after a period of time, after the shutdown will not start up, after the voltage rise is not high, sometimes they stop vibration or flow.


    Fault analysis and processing: most of this fault is a problem between the turns of the sensor.
    .
    A. for a newly smelted melting furnace, because the tying material will produce a lot of moisture when drying, so that a large number of water droplets will be gathered between the turns, resulting in the reduction of interturn insulation. At this time, the oven voltage should not be very high, and the voltage will be increased after drying.


    B. some inductor coil without immersion insulation paint directly knot knot, this furnace should pay more attention to the amount of moisture in the oven.


    C. some knot through the furnace after a period of use of knotting materials will appear small gaps, if the sensor insulation does not handle well, there will be a small amount of oxide into the induction coil winding, resulting in inter turn short circuit, the over flow phenomenon. The best inductor coil is wound with the mica belt, and the lacquer, drying, and final knot

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