|
序号
No.
|
主 要 技 术 参 数
Main Technical Specification
|
型号 Type
|
TF-40.5/1250-20A
|
聽聽电气参数 ELECTRIC RATINGS 聽聽聽
|
1
|
额定电压 Rated Voltage
|
kV
|
40.5
|
2
|
额定电流 Rated Current
|
A
|
1250
|
3
|
额定频率 Rated Frequency
|
Hz
|
50/60
|
4
|
额定短时（1分钟）工频耐受电压聽
Rated Short-time(1min) 聽Power-Frequency Withshand Voltage
|
kV
|
95
|
5
|
额定触头压力下限时的回路电阻
Circuit Resistance At Lowest Rated Contact Force
|
μΩ
|
≤40
|
6
|
雷电冲击耐受电压 Lightning Impulse Withstand Voltage
|
kV
|
185
|
7
|
额定短时耐受电流4秒Rated Short-time Withstand Current，4s
|
kA
|
20
|
8
|
额定峰值耐受电流Rated Peak Withstand Current
|
kA
|
50
|
9
|
额定短路关合电流 Rated Short-circuit Making Current
|
kA
|
50
|
10
|
额定有功负载开断电流 Rated Active Load Breaking Current
|
A
|
630
|
11
|
额定闭环开断电流 Rated Closed-loop Breaking Current
|
A
|
630
|
聽聽寿命 LIFE聽聽聽聽聽聽聽聽聽聽
|
1
|
机械寿命Mechanical Life
|
Times
|
10,000
|
2
|
储存时间 Storage Life
|
years
|
≥20
|
3
|
触头允许磨损厚度 Contacts Erosion Limit
|
mm
|
3
|
聽聽机械数据 MECHANICAL DATA
|
1
|
触头自闭力 Contact Force 聽From Atmosphere
|
N
|
130±50
|
2
|
触头反力 Counterforce of Contacts at Full Stroke
|
N
|
230±50
|
聽聽配套的真空开关设备应满足的机械参数
聽聽MECHANICAL DATA OF VACUUM SWITH EQUIPPED WITH THE INTERRUPTERS
|
1
|
触头开距 Contact Stroke
|
mm
|
18±1
|
2
|
超行程 Overtrave
|
mm
|
3±1
|
3
|
平均分闸速度Average Opening Speed
|
m/ s
|
1.6±0.2
|
4
|
平均合闸速度Average closing聽speed
|
m/ s
|
0.8±0.2
|
5
|
触头合闸弹跳时间 聽Contact Bouncing Duration at Cosing Operation
|
ms
|
≤2
|
6
|
额定触头压力 Rated Added External Contactfinal Force
|
N
|
1000±100
|
