Explain the difference between distribution box, switchgear, control box and distribution cabinet

1. In common parlance, the distribution of electrical energy is called the distribution box. Mainly used for the control of electrical equipment, power distribution, overload, short circuit, leakage of the line to play a protective role. Distribution boxes are installed in various places, such as schools, institutions, hospitals, factories, workshops, families, such as lighting distribution boxes, power distribution boxes, etc.

2. Switchgear is a complete set of switchgear and control equipment. It is used as power center and main distribution device. It is mainly used for the control, monitoring, measurement and protection of power lines and main power equipment. Often set in substations, distribution rooms, etc.

Distribution box and switchgear in addition to the function, installation environment, internal structure, controlled objects, etc., the significant feature is that the size of the shape is different, distribution box volume is small, can be concealed in the wall, can stand on the ground; and switchgear volume is large, only the device in the substation, distribution room.

3. Control box is used inside and outside of various buildings, as power, lighting distribution and motor control, suitable for indoor wall, outdoor floor installation of power distribution equipment. It is mainly used for fire pump control, submersible pump control, fire fan control, fan control, lighting distribution control, etc. The control methods are direct start control, star delta buck start control, self-linked buck start control, inverter start control, soft start control, etc. Various control methods can also be used for isolation switch and fuse type switch as isolation breaking point.

4. Power distribution cabinet is assembled with switching equipment, measuring instruments, protection appliances and auxiliary equipment in enclosed or semi-enclosed metal cabinets or on the screen width according to the electrical wiring requirements, which constitutes a low-voltage power distribution device. Normal operation with the help of manual or automatic switch to turn on or break the circuit. There are many classifications of power distribution cabinet. Its fault or abnormal operation with the help of protection appliances to cut off the circuit or alarm. With the help of measuring instruments, it can display various parameters in operation, adjust certain electrical parameters, prompt or signal deviation from normal working condition. It is commonly used in various power generation, distribution and substations.