參數名稱 Parameter name

單位unit

數值Value

額定電壓Rated voltage

kV

12

額定電流Rated normal current

A

1250

額定短路開斷電流 Rated short-circuit breaking current

kA

31.5

額定短路關合電流Rated short-circuit making current

kA

80

額定峰值耐受電流Rated peak withstand current    

kA

80

額定短時耐受電流Rated short-time withstand current

kA

31.5

額定短路持續時間Rated duration of short circuit

S

4

額定單個電容器組開斷電流
Rated single capacitor unit breaking current

A

630

額定背對背電容器組開斷電流
Rated back to back capacitor unit breaking current

A

400

額定短時（1min）工頻耐壓
Rated short time power frequency withstand voltage (1min)

kV

42

額定觸頭壓力下的回路電阻
Circuit resistance at lower limit of rated contact pressure

μΩ

≤30

額定短路開斷電流開斷次數
Rated short circuit breaking current breaking times

次
time

30

額定雷電沖擊耐受電壓
Rated lightning impulse withstand voltage

kV

75

機械壽命
Mechanical endurance

次time

10000

觸頭自閉力 Closing force due to bellow and atmosphere

N

120±50

額定開距時的觸頭反力
Force required to hold contacts open at full stroke

N

200±50

觸頭允許磨損厚度 Contact-wear allowance thickness

mm

3

內部氣體壓力Internal gas pressure

Pa

≤1.33×10ˉ³

允許貯存期 Storage period

年year

20

項目Project

單位Unit

數值 Value

觸頭開距Contact stroke

mm

11±1

觸頭接觸行程Contact travel

mm

3.5±0.5

平均合閘速度Average closing speed

m/s

0.6±0.2

平均分閘速度Average opening speed

m/s

1.1±0.2

額定觸頭壓力Rated contact pressure

N

3100±200

觸頭合閘彈跳時間Contact closing bounce time

ms

≤2

觸頭合閘與分閘不同期性
Out of simultaneity of contact closing and opening

ms

≤2