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BEIQIANG Power provides professional power products and comprehensive
solutions to ensure the safety of electricity consumption.
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
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) | 400 | 630 | |
| 额定热稳定电流(kA有效值4S)4S Rated thermal current(KA) | 12.5 | 20 | |
| 额定动稳定电流kA(峰值)Rated active load breaking currentKA(Peak) | 31.5 | 50 | |
| 额定短路关合电流(KA峰值)Rated short circuit making current(KA peak) | 31.5 | 50 | |
主要技术参数/Technical specification
| 名称hem | 名称Lm | 型号 Model | DS | DX | L | R | RA | F | 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 | △ | △ | 一 | ||||||||
| FN7-12DXL | △ | △ | |||||||||
| FN7-12R | △ | Protection | Transtomer | 变压器保护 | |||||||
| FN7-12DSLR | △ | △ | |||||||||
| FN7-12DXLR | △ | △ | △ | ||||||||
| 带撞击熔断器 | FN7-12RAF | △ | △ | Protection | Translomgr | 变压器保护 | |||||
| FN7-12DSLRAF | △ | △ | |||||||||
| FN7-12DXLRAF | △ | △ | △ | △ | |||||||
注：(-9)无(△)有
外形安装尺寸/0verall dimension
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) | 400 | 630 | |
| 额定热稳定电流(kA有效值4S)4S Rated thermal current(KA) | 12.5 | 20 | |
| 额定动稳定电流kA(峰值)Rated active load breaking currentKA(Peak) | 31.5 | 50 | |
| 额定短路关合电流(KA峰值)Rated short circuit making current(KA peak) | 31.5 | 50 | |
主要技术参数/Technical specification
| 名称hem | 名称Lm | 型号 Model | DS | DX | L | R | RA | F | 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 | △ | △ | 一 | ||||||||
| FN7-12DXL | △ | △ | |||||||||
| FN7-12R | △ | Protection | Transtomer | 变压器保护 | |||||||
| FN7-12DSLR | △ | △ | |||||||||
| FN7-12DXLR | △ | △ | △ | ||||||||
| 带撞击熔断器 | FN7-12RAF | △ | △ | Protection | Translomgr | 变压器保护 | |||||
| FN7-12DSLRAF | △ | △ | |||||||||
| FN7-12DXLRAF | △ | △ | △ | △ | |||||||
注：(-9)无(△)有
外形安装尺寸/0verall dimension