产品概述 Product brief account

HXGN-12箱型固定式金属封闭开关柜(简称环网柜)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。本环网柜配用电手、电动弹簧机

构来操作负荷开关，接地开关和隔离开关配用手动操作机构。

HXGN-12 tank fixed type metal enclosed switchgear(ring unit cubinet) is used for A.

50Hz10kV 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 Main technical data for the switchgear

额定电压       12kV

rated voltage

额定电流       630A

rated current

主母线电流

进线柜       630A

main busbar current

input switch

出线柜

125A

output switch

额定短时耐受电流

20kA

rated short-time withstand current

额定短路持续时间

4s

rated short-circuit constant time

额定峰值耐受电流

50kA

rated peak withstand current

额定短路关合电流

50kA

rated short-circuit closing current

额定有功负载开断电流

630A

rated loading breaking current

闭环开断电流

630A

sealed breaking current

额定电缆充电电流

20kA

rated cable charging current

接地开关额定短时耐受电流

20kA

earthing switch rated short-time withstand current

接地开关额定短路持续时间

4(2)s

earthing switch rated short-circuit constant time

接电开关额定峰值耐受电流

50kA

earthing switch rated peak withstand current

接电开关额定短路关合电流

50kA

earthing switch rated short-circuit closing current

1min额定工频耐受电压 相间、相对地、真空负荷开关断口

42kV

1min rated frequency withalternate and relativelyvacuum loading switch breaking

stand voltage

隔离开关断口

48kV

isolating switch breaking

额定雷电冲击耐受电压

相间、相对地、真空负荷开关断口

75kV

rated lightningimpulse

alternate and relativelyvacuum loading switch breaking

withstand voltage

隔离开关断口

85kV

isolating switch breaking

机械寿命

真空负荷开关

10000次

mechanical life

vacuum loading switch

(time)

接地开关(刀)、隔离开关(刀)    2000次

earthing switch,isolatingswitch

(time)

交接电流A.C        3150A