Can the induction melting furnace be started, and the power overcurrent protection action is increased?

Fault analysis and treatment: This fault phenomenon does not belong to an intermediate frequency power supply failure, but is caused by the impedance of the load being too low, and the load impedance must be readjusted.

1) In the circuit of the boost load, if the series-connected compensation capacitor is damaged, it is removed without replacing it, or the compensation capacitor is added uncontrollably while seeking high power, which will cause the compensation of the load to be over-compensated. Failure phenomenon. The solution is to re-adjust the compensation amount of the compensation capacitor so that the equipment can operate at the rated power.

2) The inductor has an inter-turn short-circuit phenomenon-if the inductor has an inter-turn short-circuit phenomenon, the impedance of the load will also decrease, causing this failure phenomenon. There are two possibilities for short circuit between turns:

2.1 The copper tube of the sensor is directly short-circuited

2.2 The fixed bakelite column of the sensor is severely carbonized. Due to the conductive properties of carbon, the carbonized bakelite between the turns of the sensor is directly connected between the turns to cause a short circuit between the turns of the sensor.