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VW8-12 户外高压真空断路器
VW8-12 Outdoor high pressure vacuum circuit breaker
主要技术参数 /The main technical parameters
项目Project 单位 / Unit VW8-12(G)/630-6.3kA VW8-12(G)/630-12.5kA VW8-12(G)/630-20kA
额定电压Rated voltage kV 12
额定电流Current Rating A 630
额定短路开断电流Rated short circuit breaking current kA 6.3 12.5 20
额定短路关合电流(峰值) kA 16 31.5 50
The rated short circuit close current (peak value)
额定峰值耐受电流Rated current peak tolerance kA 16 31.5 50
额定短时耐受电流 kA 6.3 12.5 20
Rated short-time resistance current
额定绝缘水平 雷电冲击耐压(峰值) kV 75
The rated insulation level Lightning shock compression (peak value)
额定绝缘水平 1min工频耐压 kV 42
The rated insulation level 1 min power frequency withstand voltage
额定操作顺序 分-0.3s-合分-180s-合分
The rated operating sequence Points -0.3s- combined points -180s- combined points
机械寿命 次 10000
Mechanical life Secondary
额定短路开断电流开断次数 次 30
Rated short circuit breaking current open circuit Secondary
操动机构额定合闸电压 V 110，220
Operating mechanism switching voltage rating
操动机构额定分闸电压 V 110，220
Operating mechanism break-brake rated voltage
触头开距Open contacts mm 11±1
超行程(触头弹簧压缩长度) mm 3±0.3
Overtravel (contact spring compression length)
三相分、合闸不同期性 ms ≤2
Three-phase points, closing different period
触头合闸弹跳时间Contact closing bounce time ms ≤2
平均分闸速度Average opening speed m/s 1.0±0.2
平均合闸速度Average closing speed m/s 0.7±0.15
最高操作电压下
分闸时间Opening time ms 15-50
The maximum operating voltage
最低操作电压下
分闸时间Opening time ms 30-60
The Minimum operating voltage
合闸时间Closing time ms 25-50
各相主回路电阻Each phase of the main circuit resistance mo ≤120(带G≤200)/≤120 (with G≤200)
动静触头允许磨损累计厚度 mm 3
Static and dynamic contact permission attrition accumulation thickness
重量Weight kg 152(带G180)/152 (with G180)
相间中心距离White center distance mm 175±1.5
外形及安装尺寸 / Shape and installation size(mm)
1. 接触刀片 The contact blade 5. 操作手柄 Operating handle
2. 触刀座 Touch knife 6. 隔离开关支架 Isolation switch bracket
VW8-12 外形及安装尺寸图 3. 触刀支柱 Touch knife pillar 7. 断路器 breaker
VW8-12 shape and installation size diagram 4. 绝缘拉杆 Insulated rod VW8G-12 外形及安装尺寸图 /
VW8G-12 shape and installation size diagram
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