|
序号
No.
|
主 要 技 术 参 数
Main Technical Specification
|
型号 Type
|
|
TD-7.2/630-12.5E
|
|
电气参数 ELECTRIC RATINGS
|
|
1
|
额定电压 Rated Voltage
|
kV
|
7.2
|
|
2
|
额定电流 Rated Current
|
A
|
630
|
|
3
|
额定频率 Rated Frequency
|
Hz
|
50/60
|
|
4
|
额定短时（1分钟）工频耐受电压
Rated Short-time(1min) Power-Frequency Withshand Voltage
|
kV
|
32
|
|
5
|
触头自闭力下的回路电阻
Circuit Resistance At Contact Force From Atmosphere
|
μΩ
|
≤40
|
|
6
|
雷电冲击耐受电压
Lightning Impulse Withstand Voltage
|
kV
|
60
|
|
7
|
额定短路开断电流
Rated Short-circuit Breaking Current
|
kA
|
12.5
|
|
8
|
额定短时耐受电流4秒Rated Short-time Withstand Current，4s
|
kA
|
12.5
|
|
9
|
额定峰值耐受电流Rated Peak Withstand Current
|
kA
|
31.5
|
|
10
|
额定短路关合电流
Rated Short-circuit Making Current
|
kA
|
31.5
|
|
寿命 LIFE
|
|
1
|
机械寿命Mechanical Life
|
Times
|
10,000
|
|
2
|
额定短路开断电流开断次数
Breaking Operations of Rated Short-circuit Breaking Current
|
Times
|
30
|
|
3
|
储存时间 Storage Life
|
years
|
≥20
|
|
4
|
触头允许磨损厚度
Contacts Erosion Limit
|
mm
|
3
|
|
机械数据 MECHANICAL DATA
|
|
1
|
触头自闭力
Contact Force From
Atmosphere
|
N
|
110±15
|
|
2
|
触头反力 Counterforce of Contacts at Full Stroke
|
N
|
150±20
|
|
配套的真空开关设备应满足的机械参数
MECHANICAL DATA OF VACUUM SWITH EQUIPPED WITH THE
INTERRUPTERS
|
|
1
|
触头开距 Contact Stroke
|
mm
|
8±1
|
|
2
|
超行程 Overtrave
|
mm
|
3±1
|
|
3
|
平均分闸速度Average Opening Speed
|
m/ s
|
1±0.2
|
|
4
|
平均合闸速度Average closing speed
|
m/ s
|
0.8±0.2
|
|
5
|
触头合闸弹跳时间 Contact Bouncing Duration
at Cosing Operation
|
ms
|
≤2
|
|
6
|
额定触头压力 Rated Added External Contactfinal Force
|
N
|
1000±50
|
