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參數(shù)名稱(chēng)

Parameter name

單位

Unit

數(shù)值

Value

額定電壓Rated voltage

kV

12

額定電流Rated current

A

630

額定頻率Nominal frequency

Hz

50

短時(shí)(1min)工頻耐受電壓
Short time power frequency withstand voltage (1min)

kV

42

雷電沖擊耐受電壓
Lightning impulse withstand voltage

kV

75

額定短路開(kāi)斷電流
Rated short circuit breaking current

kA

12.5

額定峰值耐受電流
Rated peak withstand current

kA

31.5

額定短路關(guān)合電流
Rated short circuit making current

kA

31.5

額定短時(shí)耐受電流
Rated short time withstand current

kA

12.5

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

s

3

額定單個(gè)電容器組開(kāi)斷電流
Rated breaking current of single capacitor bank

A

630

額定背對(duì)背電容器組開(kāi)斷電流
Rated breaking current of back to back capacitor bank

A

630

額定短路開(kāi)斷電流次數(shù)
Rated short circuit breaking current

次
time

10

機(jī)械壽命
Mechanical endurance

次
time

30000

觸頭自閉力
Closing force due to bellow and atmosphere

N

65±20

額定開(kāi)距下的觸頭反力
Force required to hold contacts open at full stroke

N

175±35

額定觸頭壓力下限時(shí)的回路電阻
Circuit resistance at lower limit of rated contact force

μΩ

≤35

觸頭允許磨損厚度
Contact limit erosion

mm

3

真空滅弧室內(nèi)部氣體壓力
Gas pressure inside vacuum interrupter

Pa

≤1.33×10ˉ³

運(yùn)動(dòng)部分的質(zhì)量
Weight of moving parts

kg

0.5

真空滅弧室質(zhì)量
Weight of vacuum interrupte

kg

1.75

觸頭開(kāi)距
Clearance between open contacts

mm

9±1

平均分閘速度
Average opening speed

m/s

0.8±0.3

平均合閘速度
Average closing speed

m/s

0.5±0.1

額定觸頭壓力
Rated contact force

N

700±100

觸頭合閘彈跳時(shí)間
Contact bouncing duration at closing operation

ms

≤3

觸頭合閘和分閘不同期性
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

≤