How to deal with magnetic ring toroidal inductor winding machine disconnection

One of the common failures of the winding machine is the breakage of the ring winding machine, which needs to be stopped immediately and then tested and repaired. Here’s how to deal with a broken circuit in a winding machine.

First of all, let’s look at what is the winding machine breakage, what is its impact. When a breakage occurs in the winding machine is called a winding machine breakage, which is a situation where the motor is out of phase internally. When there is a winding machine break, the motor will have a series of failures, lightly there will be starting difficulties, three-phase current imbalance, there is abnormal vibration, heavy temperature rise beyond the controllable range, winding machine smoke, burning, etc.

(A) the causes

The main reasons for the winding machine breakage include, the line was ripped off during maintenance; manufacturing process problems; poor welding of the winding machine components wire head, overheating desoldering; winding machine was damaged by external forces; winding machine short circuit and grounding, resulting in burning, etc.

(B) detection methods

1, observation method. The most common location of the breakpoint is generally in the end of the winding machine parts, can be found by visual inspection of the two ends of the winding machine with or without desoldering.

2, multimeter or shaking table detection method. Measure the first and last end of each phase of the winding machine, infinity of a phase for the broken phase.

3, the power-on detection method. Automatic winding machine in the normal operation of the motor, respectively, using a clamp-on ammeter to measure the three-phase current, if the three-phase current imbalance, and can exclude the short-circuit fault, the minimum current winding machine has a broken circuit fault.

(C) processing repair method

1. break in the end, connected and re-welded, wrapped with appropriate insulation and dipped in insulating paint drying, set of insulating sleeves can be used.

2. transformer winding machine internal winding machine break, this situation is generally not repair, must replace the winding machine coil.

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