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

20

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

kA

50

額定峰值耐受電流Rated peak withstand current

kA

50

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

kA

20

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

2000±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