ZKTJ125/1.14

  电气参数 ELECTRIC RATINGS

1

额定电压 Rated Voltage

kV

1.14

2

额定电流 Rated Current

A

125

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

10

5

触头自闭力下的回路电阻

Circuit Resistance At Contact  Force From Atmosphere

μΩ

≤120

6

雷电冲击耐受电压 Lightning Impulse Withstand Voltage

kV

18

7

额定关合能力 Rated Making Capacity

kA/50次Times

1.25

8

额定开断能力 Rated Breaking Capacity

kA/50次Times

1

9

极限开断能力 Limited Breaking Capacity 

kA/3次Times

2

10

额定短时耐受电流，10 秒

Rated Short-time Withstand Current，10s

kA

1

11

额定峰值耐受电流 Rated Peak Withstand Current

kA

2.5

寿命 LIFE

1

机械寿命 Mechanical Life

次Times

1,000,000

2

电寿命 Electrical Life

次Times

60,000

3

储存时间 Storage Life

年years

≥10

4

触头允许磨损厚度 Contacts Erosion Limit

mm

1

机械数据 MECH ANICAL DATA

1

触头自闭力 Contact Force From Atmosphere

N

25±8

2

触头反力 Counterforce of Contacts at Full Stroke

N

50±15

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

1.8±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

85