户外38kV 35kV重合器分界断路器电容器开关NKG
NKG-40.5户外真空断路器是三相交流50HZ的户外高压电器设备；适用于24~40.5KV输配电系统的控制和保护；也可适用于前落断路器及开合电容器组的场合；本产品可配合看门狗分界控制器，重合器可实现电力系统智能化分界，重合控制。并可内附电流互感器供测量与保护用，断路器可配弹簧或电磁操动机构，机械性能可靠，可频繁操作，无火灾和爆炸隐患；断路器符合国家标准GB1984-1989《交流高压断路器》和国际电工委员会IEC56、IEC62271-100《高压交流断路器》的要求。断路器的主要的特点：开断性能优良，采用真空灭弧，开断能力强，机械寿命高达10000次；结构简单，面维护，不检修周期长；绝缘性能好，抗污秽能力强；可根据客户要求内装电流互感器，计量精度达0.2S级，可实现三相互动保护。
NKG-40.5 outdoor vacuum circuit breaker is a three-phase AC 50Hz outdoor high-voltage electrical equipment; applicable to 24~40.5KV transmission and distribution system control and protection, but also can be used to fall in front of circuit breaker and closing a capacitor group occasions. This product can be matched with the watchdog boundary controller, recloser can realize power system intelligent demarcation and registration control. And containing current transformer for measurement and protection, circuit breaker can be with spring or electromagnetic actuator, reliable mechanical performance, frequent operation, no fire and explosion danger; circuit breaker conforms to the requirements of national standards GB1984-1989 "AC high voltage circuit breaker" and the International Electrotechnical Commission IEC56, IEC62271-100 the high-voltage alternating current circuit breakers,. The main characteristic of circuit breaker: breaking the excellent performance, using vacuum arc extinguish, strong breaking capacity, mechanical life of up to 10000 times; has the advantages of simple structure, maintenance, maintenance cycle for long; good insulation performance, strong anti contamination ability; can according to the customer requirements in the current mutual inductor, precision quantity of 0.2S grade, realize the protection of the three-phase interaction.
技术参数
项目单位参数额定电压KV.5额定绝缘水平1min工频耐压雷电冲击耐压（峰值）额定电流a630/1000/1250/1600/2000额定短路开断电流ka12.5/16/20/25/31.5额定操作顺序o-0.3s-co-180s-co额定短路电流开断次数次12额定短路关合电流（峰值）ka50,63,80额定峰值耐受电流额定短时耐受电流ka20,25,31.5 真空灭弧室触头开距mm 22+ -2 真空灭弧室触头超行程mm 5+ -1 相间中心距离mm 710平均分闸速度ms1.5±0.201.5±0.201.5±0.201.5±0.20平均合闸速度0.7±0.200.7±0.200.7±0.200.7±0.20触头合闸弹跳时间≤2≤2≤2≤2三相分、合闸不同期性≤2≤2≤2≤2合闸时间≤145≤145≤150≤150分闸时间≤70≤70≤70≤70机械寿命次10000额定操作电压及辅助回路额定电压vdc220,110,48,24ac220,110,48,24没相回路支流电阻（不含互感器）μΩ≤100动静触头允许磨损累计厚度mm3重量Kg1000