参数名称Parameter name

单位Unit

数值Value

额定电压 Rated voltage

kV

1.14

额定电流 Rated normal current

A

250

额定频率 Rated frequency

Hz

50

额定接通电流 Rated put through current

A

2500

额定分断电流 Rated breaking current

A

2000

极限分断电流 Limiting breaking current

A

2500

额定短时耐受电流 Rated short-time withstand current

A

2000

机械寿命 Mechanical endurance

万次Ten thousand

100

额定分断次数
Rated breaking time

AC3类

万次Ten thousand

15

AC4类

万次Ten thousand

0.6

触头自闭力
Closing force due to bellow and atmosphere

N

50±10

额定开距时的触头反力
Force required to hold contacts open at full stroke

N

70±10

触头自闭力下的回路电阻
Contact automatic blocking ability loop electrical resistance

μΩ

≤120

触头允许磨损厚度Contact-wear allowance thickness

mm

2

贮存期Storage period

年Year

20

内部气体压力 Internal gas pressure

Pa

≤1.33×10ˉ³

项目Project

单位Unit

数值Value

触头开距Contact stroke

mm

2±0.2

触头接触行程Contact travel

mm

1±0.2

平均分闸速度Average opening speed

m/s

0.6±0.1

平均合闸速度Average closing speed

m/s

0.3±0.1

额定触头压力Rated contact pressure

N

100±20

触头合闸弹跳时间
Contact closing bounce time

ms

≤2

合闸同期性 Closing same period

ms

≤2