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

25

額定短路關合電流

Rated short-circuit making current

kA

63

額定峰值耐受電流

Rated peak withstand current

kA

63

額定短時耐受電流

Rated short-time withstand current

kA

25

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

2500±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