Delixi contactor common faults

Create Date: 2024-8-30 12:03:23|Source: Delixi

After long-term use or too frequent movements, or improper daily maintenance, problems may occur during operation and affect the normal operation. Frequently asked questions are as follows:

Delixi contactor common faults

1. Coil problem

The first problem with the coil is that the current passing through it is too large to overheat and burn out. The reason for excessive current is usually that the coil insulation is damaged, or the inter-turn short circuit or collision is caused by mechanical damage, or because the power supply voltage is too low, and the dynamic and static iron cores are not tightly touched, which will make the coil current too large, the coil is overheated and burned.

2. Contact phase breakage

Because the contact of a certain phase is not well touched or the connecting screw is loose, the motor runs out of phase. At this moment, although the motor can rotate, it announces a "buzzing" sound, and if this situation occurs, it should be parked immediately for maintenance.

3. Contact fusion welding

Press the "stop" button, the motor can not stop, and some also announce a "buzzing" sound. This kind of problem is due to the high operating frequency of the toucher, overload use, short circuit on the load side, etc., which makes the two-phase or three-phase contact cause fusion welding due to the large overload current.

4. Phase-to-phase short circuit

The forward and reverse interlocking of the toucher fails, or the two touchers are put into operation at the same time due to malfunction, resulting in a phase short circuit; Or because the toucher moves too fast, the arc short circuit is announced during the conversion process.

5. Maintenance

Check the working status of each part of the toucher regularly; The movable part of the toucher should not be stuck, the activity should be sensitive, and the sturdy parts should not be loose; The surface part of the contact and the iron core should be kept clean, and if there is grease, it should be cleaned in time. When the contact is seriously worn, it should be replaced in time.

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