Over-voltage, under-voltage, and fault phase protection device for lifting platform

Overvoltage, undervoltage, and phase failure protection device is when there is a voltage drop, overvoltage, or phase failure or phase failure of the electrical circuit, the protection device will act and the construction hoist will stop running. Some construction elevator maintenance personnel on construction sites do not promptly eliminate the faults that cause the overvoltage and undervoltage fault phase protection devices to operate, but cancel or short-circuit the protection devices to make them inoperative, leaving hidden accidents for the equipment, and some early The product does not have this protection device at all and it is recommended to be equipped. The construction hoist should be able to carry people and goods when the overvoltage and undervoltage protection devices are reliable and effective.