The cause of short circuit of custom winding machine

If the motor insulation of the stator winding machine is damaged, it may cause short circuit in the stator winding machine. Once the stator winding machine has a short circuit, the motor may not be able to operate normally due to the surge of electric current. The overvoltage, undervoltage protection, overload, phase break and mechanical equipment damage occurred during the operation of the winding machine will cause the short circuit fault of the stator winding machine. The short-circuit faults of stator winding machine are mainly in two forms: turn-to-turn and phase-to-phase.

The specific cause of the short circuit fault of the stator winding machine may be caused by a variety of factors. For example, if the stator winding machine has been operating under load, then its insulation will fade, that is, short-circuit failure. In addition, if the stator winding machine operates in a high humidity environment for a long time, the grounding effect will be affected by the problem of moisture return.

The insulation at the top of the stator winding machine or the fixed layer is improperly handled or damaged, which will also cause short circuit of the equipment. The insulation penetration caused by lightning, metal parts or some micro-organisms into the interior of the motor will cause short circuit of the stator winding machine. In order to deal with the short-circuit fault of the stator winding machine, we must first find the cause of the fault. According to the method of observation, we can remove the motor and check whether there is smoke and mildew on the motor components. If there is a short circuit in the stator winding machine, it will usually be caused by a flame. this kind of fire will burn down the insulation, and the place where this impression occurs is usually the part where the short circuit occurs.

A stealth ammeter can also be used to check the three-phase current, and if one of the currents is much higher than the others, the phase is short-circuited for a long time. The multimeter or rocking meter can also be used to check. In the case of inspection, the external wiring of the coil of the stator winding machine is first connected to the multimeter or shaking meter correctly, and its R × 10K Ω file is used to measure both sides of the same phase or two phases. If the reading value is abnormal, the standard value is very low, which indicates that there is a short circuit in the winding machine between the two phases.

When the short circuit problem occurs at the edge of the stator winding machine, the insulation can be solved at the fault, and then the wire is wound again, dipped in paint, and then done well in the dry work. If the problem is an online slot, you must first find the part where the problem occurs to repair the insulation, then put it into the wire slot, infiltrate the three anti-paint and air-dry to solve it. However, most of the phase-to-phase short circuit can not be repaired, only the winding machine equipment can be dismantled and replaced.

What is explained above is the reason for the short circuit of the custom winding machine. I hope it will be helpful to you after reading it. If you want to know more about the custom winding machine, welcome to consult the customer service online or call our service hotline (upper right corner of the website). We will try our best to provide you with intimate service!