产品概述 Product brief account

HXGNO-12箱型固定式金属封闭开关相(简称环网相)适用于交流50Hz, 10kV的网络作为开断负荷和短路及关合短路电流用。本环网相配用电手' 电动 弹簧机构来操作负荷开关，接电开关和隔离开关配用手动操作机构。

HXGND-12 tank fixed type metal enclosed switchgear(ring unit cubicle)is used for A.C 50Hz,10kV network as broken loading, short-circuit and closing short-circuit. The ring mainunit equiped with manual/electromagnet spring charged operated mechanism to operate loading s witch, earthing switch and isolating switch equiped with manual operated mechanism.

主要技术参数 

额定电压rated voltage    12kV

额定电流rated current    630A

主母线电流main busbar current   进銭柜 Incoming switch    630A

                                                  出线柜 outgoing switch    125A

额定短时耐受电流Main technical data    20kA

额定短路持续时间rated short-circuit constant time   4S

额定峰值耐受电流 rated peak withstand current    50kA

额定短路关合电流 rated short-circuit closing current     50kA

额定有功负载开断电流 rated loading breaking current   630A

闭环开断电流 sealed breaking current    630A

额定电缆充电电流 rated cable charging current    20kA

接地开关额定短时耐受电流 earthing switch rated short-time withstand current    20kA

接地开关额定短路持续时间 earthing switch rated short-circuit constant time        4(2)S

接地开关额定峰值耐受电流 earthing switch rated peak withstand current    50kA

接地开关额定短路关合电流 earthing switch rated short-circuit closing current    50kA

1 min额定工频耐受电压1 min rated fnequency withoutstand voltage

      相间、相对地、真空负荷开关断口 atanaieand rdative^vacuun loacfrig swtch breaking     42kV

      隔离开关断口 isolating switch breaking     48kV

额定雷电冲击耐受电压rated lightning Impulse wtthoutstand voltage

      相间、相对地、真空负荷开关断口 atemateand retative^vaojun baftigsMtEh breaking     75kV

      隔离开关断口 isolating switch breaking     85kV

机械寿命mechanical life

      真空负荷开关 vacuum loading switch     10000次(time)

      接地开关(刀)、隔离开关(刀) earthing switch, isolating switch    2000次(time)

交接电流connect electric curren3150A