概述  Outline

GCS 低壓抽出式成套開關設備（以下稱裝置）是原國家機械部、電力部聯合設計組根據行業主管部門、廣大電力用戶及設計單位的要求研制出的 符合國情、具有較高技術性能指標、能夠適應電力市場發展需要并可與現有引進產品競爭的低壓抽出式開關柜。

該裝置一九九六年七月在上海通過了 兩部聯合主持的鑒定，受到生產制造單位和電力使用部門的重視和肯定。 該裝置適用于發電廠、石油、化工、冶金、紡織、高層建筑等行業的配電系統。在大型發電廠、石化系統等自動化程度高，要求與計算機接口的場所， 作為三相交流 50(60)Hz，額定工作電壓 380V，額定電流 4000A 及以下的發、供電系統中的配電、電動機集中控制、無功功率補償使用的低壓套套配電裝置。 

該裝置符合 IEC439-1 和 GB7251.1 標準。

GCS LV with drawable switchgear(hereinafter referred to as device) is developed according to the requirements from industry competent department, numerous electric users and design unit by original state mechanical department, united design group of power department. It conforms to national conditions and with higher technical performance index, and adapts the demands for power market development and able to compete with available imported products. 

The device passed the authentication jointly presided by two departments in July 1996 in Shanghai. It obtains the recognition and affirmation from manufacturing unit and power consumer construction. The device is applicable to the distribution system of power station, petroleum, chemical engineering, metallurgy, weaving and tall building industriesetc. In the places with high automaticity and need computer to joint, such as large-scale power station and petrochemical industry system etc, it is the low voltage complete distribution device used in the generating and power supply system with three-phase AC50(60)Hz, rated working voltage 380V, rated current 4000A and below for distribution, motor central control and reactive power compensation. 

The device accords with standards IEC439-1 and GB7251.1.

主要特點   Main feature

1. 主構架采用 8MF 型鋼，型鋼的二側面分別有模數 20mm 和 100mm 的 f9.2mm 安裝孔，內部安裝靈活方便。 

2. 主構架裝配形式設計為兩種，全組裝式結構和部分（側框和橫梁）焊接式結構，供用戶選擇。 

3. 裝置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。 

4. 水平主母線采用柜后平置排列方式，以增強母線抗電動力的能力，是使裝置的主電路具備高短路強度能力的基本措施。 

5. 電纜隔室的設計使電纜上下進出均十分方便。

1. Main framework adopts 8MF bar steel. Both sides of bar steel is installed with φ9.2mm mounting hole with modulus 20mm and 100mm. Inner installation is flexible and easy. 

2. Two types of assembly form design for main framework, full assembly structure and partial (side frame and cross rail) welding structure for user selection. 

3. Each function compartment of device is separated mutually. The compartments are divided into function unit compartment, bus bar compartment and cable compartment. Each one hasrelative independent function. 

4. Horizontal bus bar adopts cabinet back level placed array pattern for enhancing the capacity of resisting electrodynamic force for bus bar. It is the basic measure for obtaining highshort circuitstrength capacity for main circuit. 

5. Cable compartment design makes cable outlet and inlet up and down convenient.

主要技術參數    The main technical parameters

使用環境條件    Use environmental conditions

1. 周圍空氣溫度不高于 +40℃，不低于 -5℃，并且 24h 內平均溫度不高于 +35℃。 

2. 相對濕度在高溫時不超過 50%，在較低溫度時允許有較高的相對濕度，例如 +20℃時為 90%，但應考慮到溫度變化，有可能會偶然地產生適度 的凝露。 

3. 海拔高度不超過 2000 米。 

4. 安裝傾斜不超過 5°。 

5. 沒有粉塵，腐蝕性氣體和雨水浸襲的戶內。

1. Ambient air temperature: -5℃ ~+40℃ and the average temperature should not exceed +35℃ in 24h. 

2. Relative humidity should not exceed 50% at max temperature. Higher relative humidity is allowed at lower temperature. Ex. 90% at +20℃ . But in view of the temperature change, it is possible that moderate dews will produce casually. 

3. Altitude above sea level should not exceed 2000M. 

4. Installation gradient not exceed 5° . 

5. Indoor without dust, corrosive gas and rain water attack.

內部結構  Internal structure