参数名称Parameter name

单位Unit

数值Value

额定电压Rated voltage

kV

7.2

额定电流Rated normal current

A

630

额定频率Rated frequency

Hz

50

额定接通电流Rated put through current

kA

6.3

额定分断电流Rated breaking current

kA

5.04

极限分断电流Limiting breaking current

kA

6.3

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

kA

6.3

额定短时（1min）工频耐压
Rated short time power frequency withstand voltage (1min)

kV

32

额定雷电冲击电压Rated lighting impulse voltage

kV

60

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

μΩ

≤100

电寿命Electricity life

万次
Ten thousand

25

机械寿命Mechanical endurance

万次
Ten thousand

50

触头自闭力Closing force due to bellow and atmosphere

N

70±20

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

N

100±20

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

Project

单位

Unit

数值

Value

触头开距Contact stroke

mm

6±1

触头接触行程Contact travel

mm

2±0.5

平均合闸速度Average closing speed

m/s

0.3±0.1

平均分闸速度Average opening speed

m/s

0.6±0.2

额定触头压力
Rated contact pressure

N

100±20

触头合闸弹跳时间
Contact closeting bounce time

ms

≤2