Development status

1: Low voltage switchgear and control equipment are commonly known as low-voltage switchgear, also known as low-voltage distribution cabinet. It refers to a complete set of electrical equipment with AC and DC voltage below 1000V.

2: With the construction and implementation of smart grid and infrastructure, the investment in manufacturing industry and the development of new energy industry, China's low-voltage distribution cabinet market has maintained a rapid growth trend.

3: According to the monitoring data, in 2010, the total sales volume of China's low-voltage distribution cabinet market was 10.633 billion yuan, up 11.2% year on year; in 2011, the total sales volume of China's low-voltage distribution cabinet market reached 11.96 billion yuan, up 12.5% year on year.

4: Under the favorable market demand of low-voltage distribution cabinet in China, the internal competition in the industry will be intensified. Suppliers providing new generation of low-voltage complete equipment and system solutions will take the lead in the market competition in the future. Only with the above characteristics can enterprise products win certain advantages in the future competition, so as to seize the commanding height of the fourth generation of low-voltage electrical products 。

Product category

GCS cabinet:

Main framework

1: The main structure is made of 8MF type open section steel, and the side of the section steel has installation holes with module of 20 mm and diameter of 9.2 mm with module of 100 mm respectively

2: Each functional room of the device is isolated from each other, and its compartment is divided into functional unit room, bus room and cable room

GCS type low voltage distribution cabinet

GCS type low voltage distribution cabinet

。 The function of each chamber is independent of each other.

3: Horizontal main bus is arranged horizontally behind the cabinet to enhance the anti electric power capacity of the bus

The design of cable compartment makes it very convenient for cables to enter and exit

functional unit 

The module of drawer layer height is 160mm, and rated current of unit circuit is 400A and below

GCK cabinet: (MCC)

Main architecture

The basic structure of the cabinet is a combined and assembled structure. Bolt fastening connection, 20 mm for module installation hole

GCK (L) low voltage distribution cabinet

GCK (L) low voltage distribution cabinet

The functional rooms of the device are isolated from each other. The basic feature of GCK cabinet is that the bus bar is on the top of the cabinet. The compartment is divided into functional unit room (in front of the cabinet), bus room (at the top of the cabinet) and cable room (behind the cabinet). It is also reliable for wall installation. At this time, the right side of the cabinet is widened by 200mm as the cable room, which is similar to the top busbar style of MNS cabinet.

functional unit 

Module of drawer layer height is 200mm

MNS cabinet: (MCC)

Main architecture

1: The basic structure of the cabinet is composed of C-shaped profile assembly. C-section is a steel with E = 25mm as module mounting hole

MNS distribution cabinet

MNS distribution cabinet

Made by bending

2: The draw out MCC cabinet is divided into three compartments, which are function unit room (left in front of cabinet), bus room (rear of cabinet) and cable room (right in front of cabinet). Because the horizontal bus compartment is at the back, it can be made into double-sided cabinet.

3: In order to reduce the wide-band arrangement of the switch cabinet, the rear outgoing line is designed. The main bus line of the switch cabinet is horizontally installed on the top of the switch cabinet. The rear half of the cabinet is the cable room. At this time, it is similar to the bus type of the GCK cabinet

GGD cabinet: (ESS)

Electrical performance:

1) Basic electrical parameters

A) Rated insulation voltage: AC 660V (1000) V

GGD type low voltage distribution cabinet

GGD type low voltage distribution cabinet

B) Rated working voltage: main circuit: AC 380V (660V) auxiliary circuit: AC 380V (220V) DC 220V (110V)

C) Rated frequency: 50Hz

D) Rated current: ≤ 4000A

E) Rated peak withstand current (0.1s) 105kA

F) Rated short-time withstand current (1s) 50kA

GCK series AC low-voltage distribution cabinet is listed as a new energy-saving product by the state, with advanced control center structure, beautiful appearance, high electrical performance, high protection level, safety and reliability, and convenient maintenance. It is an ideal distribution device for low-voltage power supply system in metallurgy, petroleum, chemical industry, electrical machinery, light textile and other industries.

Main technical performance

b) Rated working voltage: 380V, 660V

c) Use frequency: 50Hz

d) Rated current: horizontal bus system 1600-3150a, vertical bus system 400-800a

e) Rated short-time withstand current: 80kA effective value of horizontal bus / 50kA effective value of vertical bus / 1s

f) Rated peak current: horizontal bus 175ka, vertical bus 110kA

g) Breaking capacity of functional unit: 50kA

h) Peripheral protection grade: IP40

PGL cabinet:

PGL type AC low-voltage distribution cabinet is suitable for power users such as power plants, substations, industrial and mining enterprises as AC 50Hz, rated working voltage 380V, rated current to 2500A distribution system as power, lighting and power conversion, distribution and control of distribution equipment. The product has high breaking capacity and rated short-time withstand current of 50kA.

The product conforms to iec439 low voltage switchgear and control equipment, GB7251 low voltage switchgear and other standards.

PGL power distribution cabinet is a low-voltage power distribution device installed indoors and maintained on both sides. The basic structure of the distribution cabinet is composed of steel plate and angle steel by welding. There is a door in front of the cabinet and an instrument panel above the cabinet. It is a small door that can be opened and an indicating instrument can be installed. For the cabinet assembled in parallel, a partition is added between the cabinet and the cabinet, which reduces the possibility of accident expansion due to failure in a single cabinet. The main bus is installed on the sub insulation frame above the rear frame of the cabinet, and the bus protection cover is provided to prevent the malignant accident of short circuit of the main bus caused by falling metal objects above. The neutral bus device is on the insulator under the cabinet, the main grounding point of the protective grounding system is welded under the framework, and the instrument door also has the grounding point interconnected with the shell.

PGL type AC low-voltage distribution panel is divided into: low-voltage metering cabinet, low-voltage incoming cabinet, capacitance compensation cabinet, municipal power generation conversion cabinet, bus tie cabinet and low-voltage outgoing cabinet

Main technical parameters:

Rated voltage: AC380V

Rated breaking capacity:

PGL1：15KV

Pgl2: 30KV (all valid values)

Auxiliary circuit rating