FN7-12 Model AC Hv Load Break Switch

The FN7-12DR high-voltage load switch is a new type of gas generating indoor high-voltage load switch. The FN7 load switch is suitable for three-phase AC power systems with a rated voltage of 12KV and an AC 50Hz. It is used for breaking load current and making short-circuit current

FN7-12 Model AC Hv Load Break Switch

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Product Profile

1.jpg

概述/Specification

FN7-12DR型户内交流高压负荷开关是适用于交流50Hz,额定电压12KV的三相交流电力系统中作为开断负荷电流及关合短路电流之

用,组合电器可开断直至短路电流的任何电流,可作为保护之用。

FN7-12DRModel Indoor AC HV Load Switch is suitable in 50Hz,rated voltage of 12Kv the three-phase AC power system as the breaking load short-circuit current of the power and used the Closing,until the combination of electrical short-circuit current can be breaking any current can be used as protectionpurposes.

正常使用条件/Ambient condition

1、正常使用条件:周围空气温度上限:+40℃,下限:-25℃。

2、海拔:海拔高度为1000m及以下。

3、相对湿度:日平均不大于95%,月平均不大于90%。

4、周围空气应不受腐蚀性或可燃性气体及水蒸汽等明显污染。

5、无经常性的剧烈振动。

1.The ambient temperature:-25℃-+40℃,alpine region,≥-40℃。

2.The alitude:≤1000M。

3.Relative humidity:daily average value is not greater than 95%,monthlyaverage is not greater than 90%。

4.The ambient air should not be obviously polluted corrosive or flammablegases and water vapor。

额定参数/Ratings

额定电压(KV.有效值)Rated voltage(KV)12
绝缘水平
Insulation level
  工频1min耐压(KV.有效值)
  1min frequency voltage(KV)
相间、对地42
Phase to phase,to earth 42
隔离断口48
Isolation fracture48
  雷电冲击耐压(KV.有效值)
  Lightning impulse withstand voltage()KV
相间、相地75
Phase to phase、to earth 75
隔离断口85
Isolation fracture85
额定电流(A)Rated current(A)400630
额定热稳定电流(kA有效值4S)4S Rated thermal current(KA)12.520
额定动稳定电流kA(峰值)Rated active load breaking currentKA(Peak)31.550
额定短路关合电流(KA峰值)Rated short circuit making current(KA peak)31.550

主要技术参数/Technical specification

名称hem名称Lm型号
Model
DSDXLRRAF用途Use
接地开关在进线端
Grounding switch
incoming fedder side
接地开关在出线端
Grounding switch
outgoing fedder side
联锁装置
Interlock device
熔断器
Fuse
撞击式熔断器
mpact fuse
电动分闸装置
Electric sub-
gate devices
 负荷开关Loadswiches 不带撞击熔断器FN7-12




线路负荷开关
FN7-12DSL


FN7-12DXL



FN7-12R




ProtectionTranstomer变压器保护
FN7-12DSLR



FN7-12DXLR


带撞击熔断器FN7-12RAF



ProtectionTranslomgr变压器保护
FN7-12DSLRAF



FN7-12DXLRAF

注:(-9)无(△)有

外形安装尺寸/0verall dimension

5.jpg

Product Profile

1.jpg

概述/Specification

FN7-12DR型户内交流高压负荷开关是适用于交流50Hz,额定电压12KV的三相交流电力系统中作为开断负荷电流及关合短路电流之

用,组合电器可开断直至短路电流的任何电流,可作为保护之用。

FN7-12DRModel Indoor AC HV Load Switch is suitable in 50Hz,rated voltage of 12Kv the three-phase AC power system as the breaking load short-circuit current of the power and used the Closing,until the combination of electrical short-circuit current can be breaking any current can be used as protectionpurposes.

正常使用条件/Ambient condition

1、正常使用条件:周围空气温度上限:+40℃,下限:-25℃。

2、海拔:海拔高度为1000m及以下。

3、相对湿度:日平均不大于95%,月平均不大于90%。

4、周围空气应不受腐蚀性或可燃性气体及水蒸汽等明显污染。

5、无经常性的剧烈振动。

1.The ambient temperature:-25℃-+40℃,alpine region,≥-40℃。

2.The alitude:≤1000M。

3.Relative humidity:daily average value is not greater than 95%,monthlyaverage is not greater than 90%。

4.The ambient air should not be obviously polluted corrosive or flammablegases and water vapor。

额定参数/Ratings

额定电压(KV.有效值)Rated voltage(KV)12
绝缘水平
Insulation level
  工频1min耐压(KV.有效值)
  1min frequency voltage(KV)
相间、对地42
Phase to phase,to earth 42
隔离断口48
Isolation fracture48
  雷电冲击耐压(KV.有效值)
  Lightning impulse withstand voltage()KV
相间、相地75
Phase to phase、to earth 75
隔离断口85
Isolation fracture85
额定电流(A)Rated current(A)400630
额定热稳定电流(kA有效值4S)4S Rated thermal current(KA)12.520
额定动稳定电流kA(峰值)Rated active load breaking currentKA(Peak)31.550
额定短路关合电流(KA峰值)Rated short circuit making current(KA peak)31.550

主要技术参数/Technical specification

名称hem名称Lm型号
Model
DSDXLRRAF用途Use
接地开关在进线端
Grounding switch
incoming fedder side
接地开关在出线端
Grounding switch
outgoing fedder side
联锁装置
Interlock device
熔断器
Fuse
撞击式熔断器
mpact fuse
电动分闸装置
Electric sub-
gate devices
 负荷开关Loadswiches 不带撞击熔断器FN7-12




线路负荷开关
FN7-12DSL


FN7-12DXL



FN7-12R




ProtectionTranstomer变压器保护
FN7-12DSLR



FN7-12DXLR


带撞击熔断器FN7-12RAF



ProtectionTranslomgr变压器保护
FN7-12DSLRAF



FN7-12DXLRAF

注:(-9)无(△)有

外形安装尺寸/0verall dimension

5.jpg