概述  Outline

GCK 低压抽出式开关柜成套开关设备适用于交流 50Hz，额定工作电压 380V 的低压配电系统。它包含动力中心 (PC) 和电动机控制中心 (MCC) 的功能，各项技术参数均达到国家标准，具有结构、外形美观、电气性能高、防护等级高、安全可靠、维护方便等特点，是冶金、石油、化工、电力、机械、轻纺等行业低压供电系统的配电装置。 

本产品符合 IEC-439、GB7251.1 标准。

GCK LV withdrawable switchgear cabinetis applicable to the low voltage distribution system with AC50Hz, rated working voltage 380V. It contains power center (PC) and motor control center (MCC)functions. Each technical parameter all reaches national standards. With characteristics of advanced structure, beautiful appearance, high electric performance, high protect-ion grade, reliable and safe and easy to maintain.It is the ideal distribution device for low voltage power supply system in metallurgy, petroleum, chemical,power, machinery and light weaving industries etc. 

The product accords with standards IEC-439, GB7251.1.

主要特点  Main feature

1. GCK1、GCJ1 为拼装式组合结构，基本骨架采用专用型材，拼装而成。

2. 柜体骨架，零件尺寸以及开孔尺寸按基本模数 E=25mm 变化。 

3. 在 MCC 方案中，柜内部分成五个区域（室）：水平母线区、垂直母线区、功能单元区、电缆室、中性接地母线区。各区互相隔离，保证线路正常运行， 有效防止故障扩大。 

4. 由于框架的结构均以螺钉紧固连接而成，避免了焊接变形和应力，提高了精度。 

5. 零部件通用性强，适用性好，标准化程度高。 

6. 功能单元（抽屉）的抽出、插入为杠杆操作，加上配置滚动轴承操作轻便、可靠。

1. GCK1 and REGCJ1 are assemble type combined structure. The basic skeleton is assembled by adopting special bar steel. 

2. Cabinet skeleton, component dimension and starter size change according to basic modulus E=25mm. 

3. In MCC project, parts in cabinet are divided into five zones (compartment): horizontal bus bar zone, vertical bus bar zone, function unit zone, cable compartment, and neutral earthing bus bar zone. Each zone is separated mutually for circuit's normal running and effectively preventing fault expansion. 

4. As all structures of framework are connected and firmed by bolts, so it avoids the welding distortion and stress, and upgrades the precision. 

5. Strong general performance, well applicability and high standardization degree for components. 

6. Draw-out and insert of function unit (drawer) is lever operation, which is easy and reliable with rolling bearing.

使用环境条件  Use environmental conditions

1. 海拔高度不超过 2000 米。 

2. 周围空气温度不高于 +40℃，不低于 -5℃，并且 24h 内平均温度不高于 +35℃。 

3. 大气条件：空气清洁，相对湿度在温度为 +40℃时不超过 50%，在温度较低时允许有较高的相对湿度， 例如 +20℃时为 90%。 

4. 没有火灾、爆炸危险、严重污染、化学腐蚀及剧烈震动的场所。 

5. 与垂直面倾斜不超过 5°。 

6. 控制中心适于以下温度的运输和储存过程：-25℃ ~+55℃，在短时间内 ( 不超过 24h) 不超过 +70℃。

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

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

3. Air condition: With clean air. Relative humidity should not exceed 50% at +40℃ .Higher relative humidity is allowed at lower temperature. Ex. 90% at +20℃ . 

4. Places without fire, explosive danger, serious pollution, chemical corrosion and fierce vibration. 

5. Installation gradient not exceed 5° . 

6. Control center is suitable to the transportation and store with following temperature :-25 ℃ ~+55 ℃ ,in short time (within 24h) it should not exceed +70℃ .

主要技术参数   The main technical parameters

内部结构  Internal structure