Page 13 - 苏州施源特(中德合资)电气有限公司

VW20-12F 户外高压真空断路器
VW20-12F outdoor high pressure vacuum circuit breaker

主要技术参数 / The main technical parameters

项目Project 单位Unit 参数Parameter
额定电压Rated voltage kV 12
额定频率Rated frequency Hz 50
额定电流Current Rating A 630、1000
额定短路开断电流Rated short circuit breaking current kA 16、20、25
额定峰值耐受电流(峰值)Rated current peak tolerance (peak value) kA 40、50、63
额定短时耐受电流(4s) kA 16、20、25
Rated short-time resistance current (4 s)
额定短路关合电流(峰值) kA 40、50、63
The rated short circuit close current (peak value)
机械寿命Mechanical life 次Secondary 10000
额定电流开断次数Rated current breaking times 次Secondary 10000
额定短路开断电流开断次数 次Secondary 30
Rated short-circuit breaking current breaking times
工频耐压(1min )：相间、对地/断口 kV 42/48
Power frequency withstand voltage (1min): phase, on the ground / fracture
雷电冲击耐受电压（峰值）相间、对地/断口 kV 75/85
Lightning impulse withstand voltage (peak) phase, on the ground / fracture
二次回路1min工频耐压 kV 2
Secondary circuit 1min power frequency withstand voltage
净重net weight kg 140

机械特性参数 / Mechanical parameters

项目Project 单位Unit 参数Parameter
触头开距Open contacts mm 9
触头超行程Contact Overtravel mm 3
分闸速度Opening speed m/s 1.2±0.2
合闸速度Closing speed m/s 0.6±0.2
触头合闸弹跳时间Contact closing bounce time ms ≤2
相间中心距离White center distance mm 135±1.5
外部带电空气绝缘距离External charged air insulation distance mm 240±2
外部爬电比距External creepage distance cm/kV 3.8
三相分闸不同期性Three-phase sub-gate different period ms ≤2
各相导电回路电阻Each phase conductive loop resistance μΩ ≤150
合闸时间Closing time ms ≤45
分闸时间Opening time ms <45
储能电动机额定功率Energy storage motor rated power W ≯40
储能电动机额定电压Rated motor voltage energy storage V AC220
额定合闸操作电压Rated operating voltage closing V AC220
最高/最低合闸操作电压High / Low voltage closing operation V AC264/143
额定分闸操作电压Rated operating voltage gate V AC220
最高/最低分闸操作电压High / Low voltage operation opening V AC264/143
最高/最低电动机电压High / Low Voltage Motors V AC242/187
SF6气体额定压力(表压）Rated SF6 gas pressure (gauge pressure) MPa "0"

www.szsytdq.com-06