What is the function of the electric hoist phase sequence protector?

First, not all of the electric hoist have phase sequence protector, only in the high-end chain electric hoist with phase sequence protector, its role is to protect the motor, in general, when the motor work for connection order is has a regulation, if for some reason, cause a disorder of the phase sequence, the motor will not be able to work properly or even damage.Phase sequence protection is to prevent similar accidents.It can use phase sequence relay, when the phase sequence in the circuit is inconsistent with the specified phase sequence, the phase sequence relay will trigger action, cut off the control circuit, so as to cut off the motor power supply, the purpose of protecting the motor.The popular point is to connect the wrong line will only stop running, and will not burn out the motor.

The phase-sequence protection function is a kind of electrical element that controls the secondary circuit by identifying the phase-sequence of power supply, which plays a very important role in ensuring the safe operation of the endless chain electric hoist.When there is no such device, the electric hoist may burn out the motor due to the phase sequence connection of the power supply.

This device greatly improves the safety performance of the endless chain electric hoist, so it is very necessary to add this device.