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FZBW-24(12)/0.4 户外装配式变电站 ( 欧式 ) 3
مอ৯
Outdoor assembled substation (European) '"5&/( 108&3
VGV-24(VS1-24) 型真空断路器技术数据 Vacuum circuit breaker technical data
序号 项目 project 单位 数值 Numerical value
Serial number unit
1 额定电压 Rated voltage kV 24
2 额定频率 Rated frequency Hz 50
3 额定电流 Rated current A 630、1250、2500、3150
4 额定短路开断电流 Rated short-circuit breaking current kA 25、31.5
5 额定短路关合电流 Rated short circuit closing current kA 63、80
6 额定峰值耐受电流 Rated peak withstand current kA 63、80
7 额定短时耐受电流 Rated short-time withstand current kA/s 25/4、31.5/4
额定 1min 工频耐受电压 Rated 1min power frequency
8 kV 65(相间、对地)/79(断口)
withstand voltage
额定雷电冲击耐受电压 Rated lightning impulse withstand
9 kV 125(相间、对地)/145(断口)
voltage
10 额定操作顺序 Rated operation sequence O-0.3s-CCO-180s-CO
11 主回路电阻 Main loop resistance μΩ ≤ 60(630A)、≤ 50(1250A 以上)
各相导电回路电阻(含触臂)触头开距
12 Each phase of the conductive loop resistance (including mm 13±1
the contact arm) contact opening distance
13 触头允许磨损厚度 Contact allowable wear thickness mm 3
14 平均合闸速度 Average closing speed m/s 0.8±0.2
15 平均分闸速度 Average opening speed m/s 1.4±0.3
16 合阐时间 Time ms 35 ~ 70
17 分闸时间 Opening time ms 20 ~ 50
18 触头合闸弹跳时间 Contact closing bounce time ms ≤2
三相触头合分阐不同期
19 ms ≤1
Three-phase contact is divided into different periods
20 相间中心距 Interphase center distance mm 275
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