该系列双电源自动转换开关主要由两台具有高分断能力的GTM1系列断路器及本公司自行研制的双电源自动转换开关控制器等组成，适用于额定电压400V、50Hz，额定电流800A及以下的高层建筑、医院、商场、银行、消防、化工、冶金、军事设施等不允许断电的一类负荷，部分二类负荷，完成双回路供电系统的电源自动转换，从而保证重要用户供电的可靠性。
  本产品符合GB/T14048.11-2002 IEC60947-6-1(1998)《自动转换开关电器》标准。
2.正常工作条件
·安装的海拔高度不应超过2000米。
·周围环境温度上限不高于+40℃，下限不低于-5℃，24小时平均值不超过+35℃。
·大气的相对湿度在周围空气温度为+40℃时不超过50％，在较低的温度下，可以有较高的湿度，应考虑到温度变化会发生产品表面的凝霜。
·无爆炸危险的介质，且介质无足以腐蚀和破坏绝缘的气体与尘埃。
·无显著摇动和冲击震动的地方。
3.安装及接线方法
  接线时常用电源N应接入常用电源执行断路器QN，备用电源日应接入备用电源执行断路器QR。当QN和QR为四线断路器时，接线方式按接线图，其中QN和QR的1，3，5为三相(A．B、C)进线端，2、4，6为三相出线端，7为零线(N)进线端，8为零线出线端。
  若选用断路器为三极断路器，则必须将常用电源(N)的零线NN和备用电源(R)的零线NR同时接到三极专用接零线端子KG上。具体操作见接线图。双电源切换开关自动控制器的工作电源取断路QN和QR的进线端A相和零线N，若选用断路器为三极断路器时，必须要接零线NN和NR，该三极专用接线零端子在两台断路器中间，在自动电源切换开关安装，接线过程中，切不要把原接在断路器进线端的本机控制器线忘掉，碰断或短路等。
 
4.使用操作
  无论常用电源和备用电源有无电压，均可采用手动操作方式。手动操作时，应将手动-自动按钮置于手动操作位置，当推动手柄顺时针旋转至终端时，备用电源执行断路器QR分闸，常用电源执行断路器QN合闸；当推动手柄逆时针旋转至终端时，备用电源执行断路QR合闸，常用电源执行断路器QN分闸。
  面板中，电源指示灯(红)，若该灯不亮，说明自动控制盒工作电源有故障，不能操作开关。待修复正常后，将手动·自动按钮冒于自动位冒状态，如果常用电源供电正常，切换开关将自动投入常用电源执行断路器QN合闸状态，面板中N电指示灯(黄)亮；如果常用电源供电不正常，则切换开关将自转换到备用电源QR供电，备用电源日指示灯(绿)亮。

6 warning           For your safety and equipment, please read the following:           Carefully read the operating rules, and strictly comply with the operating rules, should avoid causing serious losses.           Oath to those who do not regulate the operation of the equipment caused serious losses.           Do not plug the controller plug, otherwise it will lead to electric shock hazard or product damage           Non professional personnel to prohibit the operation or modification, otherwise it will cause an electric shock hazard or product damage           This product users do not need to change, otherwise it will result in product damage           - load capacity can not exceed the rated capacity of the switch, otherwise it will lead to switch tripping or burn           And can not be zero line (n) phase error access circuit breaker, the two b must be consistent with a circuit breaker, the normal power supply (NN) and the standby power supply (RN) with when the zero line to the terminal (KG) pin 1 (n), otherwise it will lead to damage to the switch. The ground should be reliable, to ensure safe use           Can not be directly installed in the outdoor work, or shorten the service life or cause adverse rebs           Can not be directly installed in flammable and explosive, wet, direct sunlight, high temperature, vibration, shock and other places. Otherwise, it will shorten the service life or cause the product combustion explosion.           Can not be directly installed in the conductive dust, bl wire intrusion, otherwise it will result in product damage or mechanical failure.           Should meet the requirements of the sample, otherwise it will shorten the service life. 1 scope of application           The double power series dual power automatic transfer switch is mainly composed of two sets of high breaking capacity of the GTM1 series circuit breaker and the company self-developed automatic switch controller, the rated voltage of 400V and 50Hz, a kind of load rated current 800A and below the high-rise buildings, hospitals, shopping malls, banks, and fire chemical industry, bllurgy, military facilities are not allowed to power, part of the two types of load, power supply double circuit power supply system automatically, so as to ensure the reliability of the important power supply