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户内高压真空断路器 ࡢ䚕ࣔࠩ
Indoor HV Vacuum Circuit Breaker AREVA ELECTRIC
产品技术参数 /Technical parameters
24kV
名称 Item 单位 Unit 数值 Data
额定电压
Rated voltage kV 24
对地及相间
1min 工频耐受电压(有效值) To gound and 65
1min power frequency withstand interphase
额定 voltage 真空断口间
绝缘水平 Vacuum break 79
Rated kV
insulation 对地及相间
level 雷电冲击耐受电压(峰值) To gound and 125
Rated lighting impulse withstand interphase
voltage 真空断口间
Vacuum break 145
额定频率 Hz 50
Rated frequency
额定电流
Rated current A 630 1000 1250 2000 2500,3150
额定短路开断电流 20 25 31.5
Rated short-circuit current
额定短路关合电流(峰值) 50 63 80
Rated short-circuit making current kA
4s 短时耐受电流 20 25 31.5
4s thermal stability current
峰值耐受电流 50 63 80
Peak withstand current
额定短路开断电流开断次数 次 30
Break times of reted short-circuit current
额定开合单个电容和背对背电容器组电流
Rated open-close single capacitor and back-to-back capacitor bank A 630/400
current
额定关合电容器组涌流 kA 12.5( 频率不大于 1000Hz)
Rated inrush current of capacitor bank 12.5(Frequency less than 1000Hz)
额定操作顺序 分 -0.3s- 合分 -180s- 合分
Operating consequency O-0.3s-CO-180s-CO
分闸时间 25-50
Opening time
ms
合闸时间 35-70
Colsing time
机械寿命 次
Mechanical life 30000
动、静触头允许磨损累计厚度 mm 3
Contact allowable abrasion
储能时间 s ≤ 12
Spring charging time
触头开距 mm 13±1
Contact distance
触头超行程 mm 4±0.5
Contact over-travel
三相分闸同期性 ≤2
Triping synchronization
三相合闸同期性
Closing synchronization ms ≤2
合闸触头弹跳时间 ≤2
Bounce time