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

2500

額定短路開斷電流

Rated short-circuit breaking current

kA

40

額定短路關合電流

Rated short-circuit making current

kA

100

額定峰值耐受電流

Rated peak withstand current

kA

100

額定短時耐受電流

Rated short-time withstand current

kA

40

額定短路持續(xù)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

≤25

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±¹₀

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

4000±300

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

分閘觸頭反彈幅值

Bouncing back amplitude of opening contact

mm

≤2