|
序号
No.
|
主 要 技 术 参 数
Main Technical Specification
|
型号 Type
|
|
TJ-1/300A
|
|
电气参数 ELECTRIC RATINGS
|
|
1
|
额定电压 Rated Voltage
|
kV
|
1
|
|
2
|
额定电流 Rated Current
|
A
|
300
|
|
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
|
6
|
|
5
|
触头自闭力下的回路电阻
Circuit Resistance At Contact Force From Atmosphere
|
μΩ
|
≤80
|
|
6
|
雷电冲击耐受电压
Lightning Impulse Withstand Voltage
|
kV
|
/
|
|
7
|
额定关合能力 Rated Making Capacity
|
kA
|
3.75
|
|
8
|
额定开断能力
Rated Breaking Capacity
|
kA
|
3
|
|
9
|
极限开断能力 Limited Breaking Capacity
|
kA/3Times
|
/
|
|
10
|
额定短时耐受电流，20秒 Rated Short-time Withstand Current，20s
|
kA
|
2.53
|
|
11
|
额定峰值耐受电流Rated Peak Withstand Current
|
kA
|
6.325
|
|
寿命 LIFE
|
|
1
|
机械寿命Mechanical Life
|
Times
|
5,000,000
|
|
2
|
电寿命 Electrical Life
|
Times
|
2,600,000
|
|
3
|
储存时间 Storage Life
|
years
|
≥20
|
|
4
|
触头允许磨损厚度
Contacts Erosion Limit
|
mm
|
2
|
|
机械数据 MECHANICAL DATA
|
|
1
|
触头自闭力
Contact Force From
Atmosphere
|
N
|
44～57
|
|
2
|
触头反力 Counterforce of Contacts at Full Stroke
|
N
|
56～69
|
|
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
|
1.5±0.2
|
|
2
|
超行程 Overtrave
|
mm
|
1±0.2
|
|
3
|
平均分闸速度Average Opening Speed
|
m/ s
|
0.3～0.5
|
|
4
|
平均合闸速度Average closing speed
|
m/ s
|
0.05～0.15
|
|
5
|
触头合闸弹跳时间 Contact Bouncing Duration
at Cosing Operation
|
ms
|
≤3
|
|
6
|
额定触头压力 Rated Added External Contactfinal Force
|
N
|
20
|
