What is the principle of low voltage switchgear?

Low voltage switchgear is a combination of electrical equipment, such as switchgear, measuring instrument, protection device and auxiliary equipment required by low voltage circuit, which is installed in the metal cabinet according to a certain wiring scheme for control, protection, measurement, distribution and monitoring. It is suitable for power distribution and lighting distribution in low voltage distribution system with rated working voltage not exceeding 4000V. Low voltage distribution panel is the most widely used low voltage equipment in power plant.

The rated current of lv switchgear is AC 50Hz, rated voltage 380V distribution system, it can be used for power, electric energy conversion for lighting and distribution and control. The low voltage power switchgear has strong breaking ability, good dynamic and thermal stability, flexible electrical scheme, convenient combination, good practicability, novel structure and so on.

Function of low voltage switchgear

The lv switchgear like ggd switchgear has two main functions: One is the distribution and control of electrical equipment, and the other is to provide power protection in case of circuit overload, short circuit and leakage. The low voltage switchgear is widely used in power distribution control of residential buildings, schools and hospitals because of its good function. So, one might ask, why don't we usually see the switchgear? Because the size of the switchgear is very small, most of them are hidden in the wall, we can rarely see the lv switchgear with our own eyes in daily life. Switchgear, such as lighting distribution boxes and power distribution boxes, is often seen in the factory buildings and workshops.

Generally speaking, the switchgear is mainly divided into one level, two level and lower level power distribution equipment. The distribution box has a complex structure and a large output circuit capacity. It is the power distribution center of the power supply system and will be installed in the substation to distribute electric energy to the secondary distribution cabinet. The switchgear is divided into power distribution cabinet and motor control center, the application of the two parts are opposite. Power distribution cabinet is mainly used in the less circuit, load scattered parts, and the motor control center is used in the more circuit, load concentrated parts. It is mainly to undertake one level switchgear to distribute electric energy, and distribute it to the nearest load. The switchgear is mainly lighting switchgear and power switchgear, their capacity is relatively small, the layout is also relatively dispersed, mainly responsible for controlling the lowest level of load distribution.