参数名称 

Parameter name

单位

Unit

数值

Value

额定电压

Rated voltage

kV

12

额定电流

Rated normal current

A

1250

额定短路开断电流

Rated short-circuit breaking current

kA

25

额定短路关合电流

Rated short-circuit making current

kA

63

额定峰值耐受电流

Rated peak withstand current

kA

63

额定短时耐受电流

Rated short-time withstand current

kA

25

额定短路持续时间

Rated duration of short circuit

S

4

额定单个电容器组开断电流

Rated single capacitor unit breaking current

A

630

额定背对背电容器组开断电流

Rated back to back capacitor unit breaking current

A

400

额定短时（1min）工频耐压

Rated short time power frequency withstand voltage (1min)

kV

42

额定触头压力下的回路电阻

Circuit resistance at lower limit of rated contact pressure

μΩ

≤30

额定短路开断电流开断次数

Rated short circuit breaking current breaking times

次

time

30

额定雷电冲击耐受电压

Rated lightning impulse withstand voltage

kV

75

机械寿命

Mechanical endurance

次

time

10000

触头自闭力

Closing force due to bellow and atmosphere

N

120±50

额定开距时的触头反力

Force required to hold contacts open at full stroke

N

200±50

触头允许磨损厚度

 Contact-wear allowance thickness

mm

3

内部气体压力

Internal gas pressure

Pa

≤1.33×10ˉ³

允许贮存期

Storage period

年

year

20

项目

Project

单位

Unit

数值

Value

触头开距

Contact stroke

mm

11±1

触头接触行程

Contact travel

mm

3.5±0.5

平均合闸速度

Average closing speed

m/s

0.6±0.2

平均分闸速度

Average opening speed

m/s

1.1±0.2

额定触头压力

Rated contact pressure

N

2500±200

触头合闸弹跳时间

Contact closing bounce time

ms

≤2

触头合闸与分闸不同期性

Out of simultaneity of contact closing and opening

ms

≤2