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Electric overhead crane power protection measures

Oct 24, 2019
Short circuit protection of the main power supply.
If the insulation of the electrical equipment on the electric overhead crane is damaged, when a shell or short circuit occurs, the short circuit protection device of the main power supply can quickly cut off the faulty power supply. The mains short circuit protection should be done by a fuse breaker.
 
Voltage loss protection of the main power supply.
The loss of voltage protection of the main power supply means that the main power supply circuit can be automatically disconnected after the power supply is interrupted; when the power supply is restored, the main power supply circuit cannot be turned on without manual operation. 
 
Motor overload protection.
If the rated power of the motor on the electric overhead crane is greater than 1 kW, should separately set the overload protection. Overload protection is the current overload protection method commonly used by cranes.
 
Double girder overhead crane
electric overhead crane
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