Analysis of the reason why the electric hoist of Guangdong hoisting equipment can not operate

1. You can first check whether the power fuse of the equipment is burnt out. If one phase is broken, the electric hoist can not rotate. The starting torque of the electric hoist of the crane is zero, so the motor of the equipment will not run, so it is necessary to replace enough fuse.

2. What's more, the voltage of the power grid is too low, so the dynamic torque of the equipment is proportional to the square of the voltage. The acceleration torque can not overcome the load torque and can not reach the operating speed. What needs to be done is to improve the grid voltage of the equipment.

3. Phase to phase short circuit, grounding or open circuit of stator winding,

This means that the ground wire of the winding of the electric hoist appears at the ground plate of the lead wire. What needs to be done is to open the junction box for inspection. It should be noted that the motor can not be checked in case of short circuit. It should be noted that the wiring of control equipment is correct. If the contact of AC contactor is not in good contact and the circuit can not be connected, the contact spot of contactor should be smoothed by sandpaper, and at the same time, it is necessary to check whether the iron core is pulled in and disconnected, and whether there is jamming phenomenon, if any To be replaced.

4. What should be noted is that if the load of the electric hoist of crane accessories is too large, it will not be able to lift heavy objects and overload, that is, the electric hoist can not rotate. The solution is to unload the load first. If the motor inspected can start normally, it indicates that there is a fault in the transmission mechanism such as the reducer. Check the driven mechanism to remove the fault. When running again, the whole crane needs to be tested and put into use after running well.

Article source: Guangdong lifting equipment rental http://www.jmzhongte.com