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概述
Summary
FN12-12D/630-50型户内交流高压负荷开关（以下简称FN12-12D负荷开关）是额定电压为12KV，额定频率为50Hz的三相高压开关设备，用于分合负荷电流，空载变压器和电缆充电电流，关合短路电流。配装接地开关的负荷开关，可以承受短时电流。
FN-12（R）D/100-31.5型高压负荷开关-熔断器组合电器（以下简称FN12-12（R）D组合电器），是在FN7-12D负荷开关与S□LAJ-12(XRNT□-10)高压限流式熔断器组合在一起的户内高压开关设备。它可以开断直至短路电流的任何电流；负荷开关开断工作电流，熔断器开断短路电流，联合开断工作电流与全短路电流之间的任何电流，同时熔断器通过其碰撞使负荷开关分闸。
It is a three phase H.V switch equipment of 12KV 50Hz for breaking or closing load current. No-load transformer cable charging current and closing short-circuit current.The load switch with earth switch can bear short-circuit current.
It is made up of FN12-12D load switch and S□LAJ-12(XRNT□-10)H.V current.Jointly breaking any current between short-circuit current.Meantime.Fuse box make the switch off of with the striker.
适用范围
Application
FN12-12D/负荷开关FN12-(R)D组合电器主要用三相环网或终端供电的市区配电站和工业用电设备中，作负荷控制和短路保护之用。由于组合电器对变压器等电器设备的保护作用比用断路器更可靠，特别适用于环网，比辐射代单元和箱式变电站。
It is used in the ring network city distribution and industrial equipment of 12KV and three-phase AC 50Hz to cortrol load and short-circuit.Because the switch with fuse protecting transformer etc more reliably than circuit breaker .It is especialy suitable for ring network clouble radial distribution and package substtion.
产品采用标准
Standard
正常工作环境
Normal Serviec Condition
型号含义
Type and meaning
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机构形式：S手操、D电动
额定动稳定电流（KA） 额定电流 接地开关 额定电压（KV） 设计序号 户内 交流高压负荷开关
Mechanism mode : S by hand. D by motor.
Rated dynamic staility current Rated current Earth switch Rated voltage Designed number Indoor AC H.V load switch |
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机构形式：S手操、D电动
额定短路开断电流（KA） 额定电流 接地开关 带熔断器 额定电压（KV） 设计序号 户内 高压负荷开关-熔断器组合电器
Mechanism pattern : S handle operate. D by motor.
Rated dynamic staility current Rated current Earth switch Witch switch Rated voltage Designed number Indoor H.V load switch with fuse box |
技术参数和性能见下表
Techniacl parameter and performances(please see the table)
|
序号 Number |
名称 Name |
单位 Unit |
FN12-12D/630 | FN12-12D(R)D/100 |
| 1 |
额定电压 Rated voltage |
KV | 12 | |
| 2 |
额定频率 Rated frequency |
Hz | 50 | |
| 3 |
额定电流 Rated current |
A | 630 | 100 |
| 4 |
雷电冲击耐受电压 Lighting impulse resisting voltage |
KV |
对地及相间75、隔离断85 To ground.interphase 75 isolation break 85 |
|
| 5 |
1min 工频耐受电压 1min power frequency withstand voltage |
KV |
对地及相间42、隔离断48 To ground.interphase 42 isolation break 48 |
|
| 6 |
额定热稳定电流 Rated heat-stability current |
KA | 20(4S) | |
| 7 |
额定动稳定电流 Rated machine-stability current |
KA | 50 | |
| 8 |
额定关合电流 Rated closing current(peak) |
KA | 50 | 50 |
| 9 |
额定短路开断电流（予期值） Rated short-circuit breaking current (prospective value) |
KA | 31.5 | |
| 10 |
临界开断电流时最大I2·t Max.critical breaking current I2·t |
A2S |
按熔断器特征曲线 fuse box characterisitic curve |
|
| 11 |
最小开断电流 Min.Breaking current |
KA |
按熔断器特征曲线 fuse box characterisitic curve |
|
| 12 |
额定转移电流 Rated transfer current |
KA | 1.5 | |
| 13 |
最大开断电流(参考值) Max.breaking current(reference value) |
KA | 1.8 | |
| 14 |
开断空载变压器容量 Braking no-load transformer capcity |
kva | 1250 | |
| 15 |
额定电缆充电电流 Rated cable charging current |
A | 10 | |
| 16 |
额定有功负载电流开断次数 Rated power load current breaking times |
次 time |
≥100 | |
| 17 |
额定有功负载电流开关分闸时间 Switch-off time of rated power load current switch on-and-off |
S | ＞0.06 | |
| 18 |
接地开关热稳定电流 Rated transfer current |
KA | 20(2S) | 20(2S) |
| 19 |
接地开关热稳定电流(峰值) Rated transfer current |
KA | 50 | 50 |
| 20 |
电动机操作电源电压 Motor operating power valtage |
V |
交直流100、220、 pay 110、220 direct current |
|
机械特征参数
Mechanical characteristic parameter
|
型号 Nunber |
项目 Name |
单位 Unit |
FN12-12D/630 | FN12-120D(R)D/100 |
| 1 |
动触头总行程 Machine contact qeneral travel |
mm | 200±8-2 | |
| 2 |
相间中间距离（机构储能） Interphase distance (before mechansim store energy) |
mm | 210±3 | |
| 3 |
动触头超行程 Dynamic contact ultra travel |
mm | 40±2 | |
| 4 |
辅助触头开距 Auxiliary contact distance |
mm | 40±2 | |
| 5 |
三相分、合闸同期性 Three-phase switch on-and-off synchroneity |
m/s | ＜3 | |
| 6 |
刚分速度 Switch-off speed |
m/s | ＞2.8 | ＞2.8 |
| 7 |
刚合速度 Switch-on speed |
m/s | ＞3.8 | |
| 8 |
金属活门对导电筒距离 Distance between metal valueand conducting pipe |
mm | ＞125 | |
| 9 |
接地开关断口距离 Earth switch fracture distance |
mm | ＞150 | |
| 10 |
主回电电阻 Main.loop resistance |
μΩ | ＜120 | ＜300 |
| 11 |
最大操作力矩 Max.Opertaing moment |
Nm | ＜160 | |
结构示意和外形、安装尺寸图
Structure、appearance and installation diagram
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FN12-12(R)D/100-31.5型户内交流高压负荷开关 FN12-12(R)D/100-31.5 Type indoor AC H.V Load switch |
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FN12-12D/630-50型交流高压负荷开关-熔断器组合电器 FN12-12D/630-50 Type AC H.V Load switch with fuse box |
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电动操作机构开孔尺寸图 The size diagram of motor operating mechanism |
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手动操作机构开孔尺寸图 The size diagram of handle operating mechanism |
