ZKTD400/7.2-10

  电气参数 ELECTRIC RATINGS

1

额定电压 Rated Voltage

kV

7.2

2

额定电流 Rated Current

A

400

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

≤80

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

10

8

额定短时耐受电流 4 秒 Rated Short-time Withstand Current，4s

kA

10

9

额定峰值耐受电流 Rated Peak Withstand Current

kA

25

10

额定短路关合电流 Rated Short-circuit Making Current

kA

25

寿命 LIFE

1

机械寿命 Mechanical Life

次Times

10,000

2

额定短路开断电流开断次数

Breaking Operations of  Rated Short-circuit Breaking Current

次Times

30

3

储存时间 Storage Life

年years

≥20

4

触头允许磨损厚度 Contacts Erosion Limit

mm

2

机械数据 MECH ANICAL DATA

1

触头自闭力 Contact Force From Atmosphere

N

90±20

2

触头反力 Counterforce of Contacts at Full Stroke

N

120±30

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

1.1±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

650±50