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FZBW-24(12)/0.4 户外装配式变电站 ( 欧式 ) 3
مอ׈৯
Outdoor assembled substation (European) '"5&/( 108&3

VGF-24(12) 真空负荷开关 Vacuum load switch

VGF-24 VGZR-24
序号 项目 project 单位 unit 真空负荷开关 组合电器
Serial number
Vacuum load switch Combination appliance
1 额定电压 Rated voltage kV 24
2 额定频率 Rated frequency Hz 50
熔断器额定电流
3 额定电流 Rated current A 630
Fuse rated current125
4 额定短路开断电流 Rated short-circuit breaking current kA - 31.5

5 额定有功负载开断电流 Rated active load breaking current A 630 -
额定空载变压器开断电流
6 A 63 -
Rated no-load transformer breaking current
7 额定闭环开断电流 Rated closed-loop breaking current A 630 -

8 额定电缆充电开断电流 Rated cable charging breaking current A 16 -
9 额定线路充电开断电流 Rated line charge breaking current A 1.5 -

10 额定短路关合电流 Rated short circuit closing current kA 50 -
负荷开关（含隔离开关）
额定短时耐受电流 20/4 -
11 Rated short-time Load switch (including isolation switch) kA/s
withstand current 接地开关 Grounding switch 20/3 -
额定开断转移（交接）电流
12 A - 3150
Rated breaking transfer (handover) current
1min 工须耐受电压（有效值）对地、相间、真空断口 / 隔离断口
13 1min work tolerance voltage (effective value) to ground, phase, kV/kV 65/79
vacuum fracture / isolation fracture
全波雷电冲击耐受电压（峰值）对地．相间，真空断口 / 隔离断口
14 Full-wave lightning impulse withstand voltage (peak) to ground. kV/kV 125/145
Interphase, vacuum fracture / isolation fracture
15 主回路电阻 Main loop resistance μΩ ≤ 80 ≤ 95
额定单个电容器组开断电流
16 A 630
Rated single capacitor bank breaking current
额定背对背电容器组开断电流
17 A 400
Rated back-to-back capacitor bank breaking current
18 机械寿命 Mechanical life 次 Times 10000
19 触头开距 Contact opening distance mm 12±1
20 触头磨损累计厚度 Contact wear cumulative thickness mm 3
21 平均分闸速度 Average opening speed m/s 1.1 ～ 1.7
22 平均合闸速度 Average closing speed m/s 0.8 ～ 1.2
23 额定触头压力 Rated contact pressure N 2500±200
24 触头合闸弹跳时间 Contact closing bounce time ms ≤2
25 三相分、合闸不同期 Three-phase separation and closing ms ≤1
26 极间中心距 Center distance between poles mm 275±3
27 带电体之间及相对地距离 Charged body and relative distance mm ≥ 180
真空灭弧室合闸操作力矩
28 N·m ≤ 90
Vacuum interrupter closing operation torque
真空灭弧室分闸操作力
29 N ≤ 10
Vacuum interrupter opening operation force
额定分闸操作电压额定合闸操作电压
30 V ≌ 220/110
Rated opening operation voltage rated closing operation voltage

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