真空滅弧室 (TD-12/630-20)ZW8-12 真空管 TD-12 陶瓷真空管 TD-12/630-25
真空滅弧室 (TD-12/630-20)ZW8-12 真空管 TD-12 陶瓷真空管 TD-12/630-25
真空滅弧室 (TD-12/630-20)ZW8-12 真空管 TD-12 陶瓷真空管 TD-12/630-25
供應(yīng) 旭光 真空管 TD-12/1250-25 真空滅弧室 真空泡 ZN28
產(chǎn)品簡介
主要技術(shù)參數(shù)
Main technique parameter
參數(shù)名稱
Parameter name 單位
Unit 數(shù)值
Value
額定電壓
Rated voltage kV 12
額定電流
Rated normal current A 630
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
額定短時耐受電流
Rated short-time withstand current kA 25
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 ≤30
額定短路開斷電流開斷次數(shù)
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 80±30
額定開距時的觸頭反力
Force required to hold contacts open at full stroke N 140±40
觸頭允許磨損厚度
Contact-wear allowance thickness mm 3
真空滅弧室內(nèi)部氣體壓力
Gas pressure inside vacuum interrupter Pa ≤1.33×10ˉ3
配用斷路器的機械參數(shù)
Technical specifications Circuit-breaker
項目
Project 單位
Unit 數(shù)值
Value
觸頭開距
Contact stroke mm 10±1
觸頭接觸行程
Contact travel mm 2±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
分閘觸頭反彈幅值
Bouncing back amplitude of opening contact mm ≤2