In the modern power system, GGD complete sets of switchgear with its excellent performance, high reliability and flexible configuration, has become an indispensable power distribution and control equipment for power users such as power plants, substations, factories and mining enterprises and civil buildings. This paper will deeply discuss the structural characteristics, functional applications, technical advantages of GGD switchgear sets and its important position in power system.

First, GGD type complete set of switchgear structure characteristics

GGD complete sets of switchgear, full known as "fixed metal closed switchgear", the cabinet is made of high-quality metal materials (such as steel plate), through 8MF cold-formed steel partial welding assembly, this design gives the cabinet strong load-bearing capacity and seismic performance, while ensuring the structure of compact and stable. The mounting holes on the cabinet frame are arranged according to the modules E=20mm and E=100mm, making the product assembly with a high degree of flexibility and versatility, and easy to configure and adjust according to actual needs.

GGD switchgear cabinet door is usually connected with the frame by rotating shaft movable hinge, easy to install and disassemble, and beautiful design, in line with the requirements of modern industrial product design. The protection level of the cabinet reaches IP30 standard, and the user can also choose between IP20 and IP40 according to the environmental requirements to adapt to the needs of different environments.

Second, function and application

GGD switchgear sets are suitable for power supply systems with AC frequency of 50Hz, rated operating voltage not exceeding 400V (some products can reach 660V), and rated current of 3150A and below. It can be used as power, lighting and power distribution equipment for energy conversion, distribution and control, widely used in power plants, substations, factories and mining enterprises and civil buildings and other fields.

GGD switchgear is equipped with left and right bus room, responsible for providing the current channel. There is a busbar connection bar in the room, which is convenient for bus connection and disassembly to meet different circuit configuration requirements. At the same time, the bus room is also equipped with insulation support to ensure the reliability and safety of the bus during operation. The rear is provided with an AC contactor room and a DC contactor room, which are usually located in the lower part of the cabinet, connected to the front panel and other electrical components through cables, and equipped with the corresponding heat dissipation system to ensure the normal operation of the contactor.

Third, technical advantages

High breaking ability: GGD switchgear has high breaking ability, which can effectively cut off short circuit current and protect the safety of circuits and equipment.

Good dynamic thermal stability: at rated current and short circuit current, GGD switchgear can maintain good dynamic thermal stability to ensure the stable operation of the power system.

Flexible electrical scheme: GGD switchgear's electrical scheme is flexible and changeable, which can be customized according to the specific needs of users to meet different power distribution and control requirements.

Easy combination: The modular design of GGD switchgear makes it easy to combine, and users can expand and upgrade according to actual needs.

Excellent heat dissipation performance: GGD switchgear adopts efficient natural convection heat dissipation system, and the upper and lower ends of the cabinet are designed with different number of heat sinks, so that the heat generated by the electrical components can be smoothly discharged and supplemented with cold air to ensure the normal operating temperature of the equipment.

Fourth, the important position in the power system

GGD switchgear is one of the indispensable key components of modern power system, its stability and reliability are directly related to the overall operating efficiency and safety of power system. In power plants, substations and other power hubs, GGD switchgear undertakes the important tasks of energy conversion, distribution and control to ensure the stability and reliability of power supply. In factories, mining enterprises and civil buildings, GGD switchgear is responsible for providing power support for various electrical equipment to ensure the normal demand for production and domestic electricity.

In addition, GGD switchgear is also equipped with perfect protection devices, including overvoltage protection, undervoltage protection, overload protection, etc., can detect abnormal conditions of electrical equipment in time, and take appropriate measures to cut off the power or adjust the circuit state, so as to avoid fire and other dangerous situations. The existence of these protective devices provides a solid guarantee for the safe and stable operation of the power system.

In summary, GGD switchgear sets play an important role in the power system with its excellent performance, high reliability and flexible configuration. With the continuous development of the power industry and the continuous progress of technology, GGD switchgear will continue to play its important role in contributing to the development of the power industry. At the same time, we also look forward to the emergence of more innovative switchgear technology in the future, and jointly promote the intelligent, efficient and green development of the power system.