How To Judge Whether The Capacitor In The Electric Small Crane Is Broken

In peacetime use of building small crane we can't forget is tie-in a better quality of electric small crane, but electric small crane as long as don't overload use at ordinary times or not work, try not to get wet with rain, motor basic not bad, but after a long time we don't have a production factory, electric small crane has the vulnerability, in use at ordinary times, few will mainly to these in the following the content of the shandong coal professionals to teach you how to judge the capacitance is broken:

1. See whether the capacitor is bulging or not;

2. Connect to the electric elevator to hear whether the motor has a buzzing sound, and stir the rotor with the hand to move the speed is slow and weak;

3. Some capacitors have charred smell on the surface due to excessive current (limited to capacitors of plastic shell)

4. Measure with 10,000 meter capacitance block.

Single-phase electric current flows through the motor does not produce a rotating magnetic field, need to take the capacitor is used to split phase, the purpose is to make the two in the winding current to produce nearly 90 ゜ phase difference, in order to produce a rotating magnetic field.