产品概述 Product overview

GCK 低压抽出式开关柜广泛适用于发电厂、冶金轧钢、石油化工、轻工纺织、港口码头、大楼宾馆等场所作为交流三相四线或五线制、电压 380V、660V，频率为 50Hz、额定电流为 5000A 及以下的供电系统中的配电和电动机集中控制之用。 

GCK 是经过全面型式试验，是组装而成的低压开关柜，设计符合下列标准： 

国家标准 GB7251.1-2005《低压成套开关设备》 

国际标准 IEC60439.1-1992《低压成套开关设备和控制设备》 

GCK low-voltage draw-out switchgear is widely used in power plants, metallurgical steel rolling, petrochemical industry, light industrial textiles, ports, docks, buildings, hotels and other places as AC three-phase four-wire or five-wire system, voltage 380V, 660V, frequency 50Hz, rated current 5000A and below for power distribution and motor centralized control in power supply systems. 

GCK is an advanced low-voltage switchgear assembled after comprehensive type test and CCC certification. Its design meets the following standards: 

National Standard GB7251.1-2005 《Low Voltage Complete Switchgear》International Standard IEC60439.1-1992 《Low Voltage Switchgear and Control Equipment》

正常使用环境 Normal operating environment

◇ 周围空气温度不高于 +40℃，不低于 -5℃，在 24 小时内平均温度不高于 +35℃； 

◇ 相对温度在最高温度 +40℃时不超过 50％，在较低温度时允许有较高的相对温度，如 +20℃时为 90％； 

◇ 空气清洁，无腐蚀性及爆炸性气体，无导电及能破坏绝缘的尘埃： 

◇ 无明显摇动和冲击振动的场合，垂直安装，倾斜度不应大于 5°； 

◇ 海拔高度不超过 2000 米； 

◇ 开关柜适用于以下温度运输和储存：- 2 5℃ ~+ 5 5℃，在短时间内 ( 不超过 24 小时 ) 不超过 +70℃； 

◇ 用户对上述条件不能满足时应与制造厂协商。 

◇ Ambient air temperature is not higher than +40℃ , not lower than -5℃ , and the average temperature within 24 hours is not higher than+35℃ ; 

◇ The relative temperature shall not exceed 50% at the highest temperature +40℃ , and higher relative temperature is allowed at lower temperature, such as 90% at +20℃ . 

◇ The air is clean, free of corrosive and explosive gases, and free of conductive and insulating dust: 

◇ When there is no significant shaking and impact vibration, it shall be installed vertically with an inclination of not more than 5. 

◇ The altitude shall not exceed 2,000 meters; 

◇ Switchgear is suitable for transportation and storage at the following temperatures:-25℃ ~+55℃ , within a short period of time (not more than 24 hours) not more than+70℃ ; 

◇ The user shall negotiate with the manufacturer if the above conditions cannot be met.

主要技术参数 Main technical parameters

◇ 额定绝缘电压 660V/1000V 

◇ 额定工作电压 400V/660V 

◇ 辅助电路额定工作电压：交流 380V、220V，直流 110V、220V 

◇ 母线额定电流：1000A、1250A、1600A、2000A、2500A、3200A、4000A、5000A 

◇ 母线额定短时耐受电流：50kA、80kA( 有效值 )1 秒 

◇ 母线额定峰值耐受电流：105kA/0.1s、140kA/0.1s、176kA/0.1s 

◇ 分支母线额定电流：630A、1000A、1250A、1600A 

◇ 分支母线额定短时耐受电流：30kA、50kA( 有效值 )1 秒 

◇ 分支母线额定峰值耐受电流：63kA、105kA/0.1s 

◇ 外壳防护等级：IP30、IP40 

◇ 母线设置：三相四线制、三相五线制 

◇ 操作方式：就地、远方、自动 

◇ Rated isolation voltage 660V/1000V 

◇ rated operating voltage 400V/660V 

◇ Rated working voltage of auxiliary circuit: 380V and 220V AC, 110V and 220V DC 

◇ Bus rated current: 1000A, 1250A, 1600A, 2000A, 2500A, 3200A, 4000A, 5000A 

◇ rated short-term withstand current of bus: 50kA, 80kA (effective value) for 1 second 

◇ Bus rated peak withstand current: 105kA/0.1s, 140kA/0.1s, 176kA/0.1s s. 

◇ rated current of branch bus: 630A, 1000A, 1250A, 1600A 

◇ rated short-term withstand current of branch bus: 30kA, 50kA (rms) for 1 second 

◇ rated peak withstand current of branch bus: 63kA, 105kA/0.1s 

◇ Shell protection level: IP30, IP40 

◇ Bus bar setting: three-phase four-wire system and three-phase five-wire system 

◇ Operation mode: local, remote and automatic