Function of power cabinet distribution box:

1. Supply power to electrical equipment (supply power to equipment);

2. Start stop operation function electric equipment (with start stop button);

3. Detect the operation of the equipment (set signal indicator, ammeter and voltmeter);

4. The power distribution box is the power distribution cabinet, which is designed to provide power supply and control for power equipment (generally motor).

The differences between power cabinet distribution box and lighting cabinet are as follows: power cabinet distribution box is used for power supply of equipment, most of which are 380V; The lighting cabinet is mainly used for lighting, and the output voltage is mostly 220 v.

The difference between power cabinet distribution box, distribution cabinet and distribution box is as follows:

The distribution box manufacturer's distribution box is small in volume, which is generally controlled by single machine or few equipment; The distribution box of power cabinet is a relatively complex power equipment control system with large volume and many components; The power distribution cabinet has a large volume and is generally equipped with multiple large switches and instrument power. What's the difference between the power distribution box and the lighting cabinet? It controls a lot or workshop.

Maintenance procedures for control cabinet of low voltage distribution cabinet:

Carry out sectional maintenance, first maintain the security load section and stop the security load power. If the load is still supplied with the mains power, disconnect the air switch for the security load mains power, put the generator selection switch in the "stop" position, remove the positive and positive pole wires of the battery, mark the parts to prevent the generator from sending power, check whether there is deformation at the bus joint, whether there is discharge black mark, and tighten the connecting bolts, If the screw lattice is rusty, replace the second son to ensure the connection is tight, check whether the insulation on the bus is loose and damaged, remove the handle of the main air switch from the power distribution cabinet, check whether the main contact of the gold has traces of acetylene melting, check whether the arc extinguishing cover is burned black and damaged, tighten the wiring screws, clean the dust in the cabinet, and test the closing of the machine.

Take out each separate cabinet from the small cabinet, tighten the terminals, check the installation and wiring of current transformer, ammeter and watt hour meter, and check the flexibility and reliability of handle operating mechanism. Tighten the air to rescue the Zhuangcheng's incoming and outgoing lines, and clean the dust in the switch school and the outgoing line behind the distribution cabinet. When maintaining the capacitor cabinet, disconnect the main switch of the capacitor first, Discharge the capacitors to the ground one by one with wires more than 10 mm, then check whether the contactor, capacitor wiring screw and grounding device are in good condition, check whether the capacitor is bulging, and clean the dust in the cabinet with a vacuum cleaner.