The GCS type low-voltage withdrawable switchgear is used for power generation and power supply systems with a three-phase AC frequency of 50Hz, a rated working voltage of 400V (690V), and a rated current of 4000A and below, as well as for centralized control and capacitance compensation of power distribution and motors. Widely used in power plants, petroleum, chemical, metallurgical, textile, high-rise buildings, and other places, it can also be used in large power plants, petrochemical systems, and other places with high automation and computer interface requirements.

執行標準:

Executive standards:

本產品符合GB7251.1-1997《低壓成套開關設備和控制設備》和JB/T9661-1999《低壓抽出式成套開關設備》的要求

This product meets the requirements of GB7251.1-1997 "Low voltage switchgear and control equipment" and JB/T9661-1999 "Low voltage withdrawable switchgear"

結構特點：

Structural features:

1、框架采用8MF型開口型鋼，主構架上安裝模數為E=20mm和100mm的Φ9.2mm的安裝孔，使得框架組裝靈活方便。

1. The frame is made of 8MF type open steel, and modules E=20mm and 100mm are installed on the main frame Φ The 9.2mm installation hole makes frame assembly flexible and convenient.

2、開關柜的各功能室相互隔離，其隔室分為功能單元室、母線室和電纜室。各室的作用相對獨立。

2. The functional rooms of the switchgear are isolated from each other, and their compartments are divided into functional unit rooms, busbar rooms, and cable rooms. The functions of each compartment are relatively independent.

3、水平母線采用柜后平置式排列方式，以增強母線抗電動力的能力，是使主電路具備高短路強度能力的基本措施。

3. The horizontal busbar is arranged horizontally behind the cabinet to enhance its resistance to electrical forces, which is a basic measure to ensure that the main circuit has high short-circuit strength.

4、電纜隔室的設計使電纜上、下進出均十分方便。

4. The design of the cable compartment makes it very convenient for cables to enter and exit both up and down.

5、抽屜高度的模數為160mm。抽屜改變僅在高度尺寸上變化，其寬度、深度尺寸不變。相同功能單元的抽屜具有良好的互換性。單元回路額定電流400A及以下。

5. The modulus of drawer height is 160mm. The drawer changes only in height dimensions, while its width and depth dimensions remain unchanged. Drawers with the same functional unit have good interchangeability. The rated current of the unit circuit is 400A and below.

6、抽屜面板具有分、合、試驗、抽出等位置的明顯標志。抽屜單元設有機械聯鎖裝置。1抽屜單元為主體，同時具有抽出式和固定性，可以混合組合，任意使用。

6. The drawer panel has clear markings for opening, closing, testing, and withdrawing positions. The drawer unit is equipped with a mechanical interlocking device. 1 drawer unit as the main body, with both withdrawable and fixed features, which can be mixed and combined for any use.

7、柜體的防護等級為IP30IP40，還可以按用戶需要選用。

7. The protection level of the cabinet is IP30IP40 and can also be selected according to user needs.