2013年7月17日星期三

Electric wire rope hoist is not working properly killer "rated voltage"



21st century,  Hoist equipment  updates very quickly, its power resources are required to operate, if the rated voltage is not up to standard, you can not operate normally, wire rope electric hoist less than the rated voltage will directly affect its work, and Under these circumstances generally consists of three

Caused by:

1, phase. Hoist the main, the control circuit of electrical damage, the line is disconnected or bad, but also make hoist motor phase does not work, this situation needs repair master, control circuits, maintenance, in order to prevent the main, the control loop to give three phase motor power phase while burning motor, or

Electric hoist motor suddenly energized operation, cause harm, be sure to hoist the motor is disconnected from the power line, only to the Lord, the control circuit power transmission, and then move the start and stop switches, electrical control and circuit inspection and analysis of the work, to have the problem of electrical or circuit repair

Or replacement, when the confirmation Lord, the control circuit trouble, before re-commissioning.

2, the voltage is too low. wire rope hoist  motor terminal voltage lower than the rated voltage of more than 10%, motor starting torque is too small, so do not move goods lifting hoists, and can not work, check with a multimeter or voltage meter and other measuring motor input voltage.

3, no electricity. Power supply system for  Wire rope hoist  power transmission, usually with test pencil tests, such as no power transmission, power transmission, etc. after work.

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