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參數(shù)名稱  Parameter name

單位Unit

數(shù)值Value

額定電壓Rated voltage

kV

40.5

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(guān)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(shí)耐受電流Rated short-time withstand current

kA

25

額定短路持續(xù)時(shí)間Rated duration of short circuit

S

4

額定單個(gè)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(shí)（1min）工頻耐壓
Rated short time power frequency withstand voltage (1min)

kV

95

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(shù)
Rated short circuit breaking current breaking times

次

Time

20

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

kV

185

機(jī)械壽命 Mechanical endurance

次Time

10000

觸頭自閉力
Closing force due to bellow and atmosphere

N

250±50

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

N

330±60

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

mm

3

內(nèi)部氣體壓力Internal gas pressure

Pa

≤1.33×10ˉ³

允許貯存期 Storage period

年Year

20

項(xiàng)目Project

單位Unit  

數(shù)值 Value

觸頭開距Contact stroke

mm

22±2

觸頭接觸行程Contact travel

mm

8±2

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

1.4±0.2

額定觸頭壓力Rated contact pressure

N

2900±300

觸頭合閘彈跳時(shí)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