The power cabinet refers to the combination of electrical control cabinets that provide power for the normal operation of the entire machine, including contactors, frequency converters, high-voltage cabinets, transformers, etc. effect: 1. Supply power to electrical equipment (provide power to equipment); 2. Start and stop operation of electrical equipment (with start and stop buttons); 3. Check the operation of the equipment (set the signal indicator light, have the ammeter and voltmeter); 4. The power cabinet for protecting electrical equipment (circuit breaker) is a power distribution cabinet, which is a power distribution cabinet designed to provide power and control for power equipment (generally referring to motors). The difference between the power cabinet and the power distribution cabinet and distribution box: The power distribution box is small in size, and is generally a simple control of a single machine or a small number of equipment; the power cabinet is a large volume, with many devices inside and relatively complex power equipment control; the power distribution cabinet is large in size, and generally has multiple A large switch and gauge to control a lot or workshop.