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ZN33B-12懸掛式高壓真空斷路器產(chǎn)品詳細(xì)說明：

ZN33B-12型懸掛式高壓真空斷路器(以下簡(jiǎn)稱斷路器)，是在原ZN33B-12型產(chǎn)品基礎(chǔ)上汲取了國(guó)內(nèi)外VD4﹑VK﹑VS1型產(chǎn)品的技術(shù)精華，全新設(shè)計(jì)的高可靠、免維護(hù)產(chǎn)品。斷路器適用于三相交流50HZ，額定電壓12kV及以下的戶內(nèi)高壓配電設(shè)備，作為電網(wǎng)設(shè)備、工礦企業(yè)動(dòng)力設(shè)備的保護(hù)和控制單元，由于斷路器外附專利產(chǎn)品CDY型永磁機(jī)構(gòu)，使其具有優(yōu)異的性能，特別適用于頻繁操作，或多次開斷短路電流的場(chǎng)所。

ZN33B-12懸掛式高壓真空斷路器技術(shù)參數(shù)

序號(hào) S．N	項(xiàng)目 Item	單位 Unit	數(shù)值 Digital Value
1	額定電壓 Rated Voltage	kV	12
2	額定短時(shí)工頻耐受電壓(1min) Rated Short Period Work Frequency Voltage Endurance (1 min)		42
3	額定雷擊沖擊耐受電壓（峰值） Rated Thunder and Lightening Striking Endurance Voltage (Peak Value)		75
4	額定頻率 Rated Frequency	HZ	50
5	額定電流 Rated Current	A	630 1250	630 1250
6	額定短路開斷電流 Rated Short-circuit On and Off Current	KA	20	31.5
7	額定短時(shí)耐受電流 Rated Short Period Endurance Current		20	31.5
8	額定短路持續(xù)時(shí)間 Rated Short-circuit Continuing Time	S	4
9	額定峰值耐受電流 Rated Peak Value Endurance Current	kA	50	80
10	額定短路關(guān)合電流 Rated Short-circuit On-switch Current		50	80
11	二次回路工頻耐受電壓（1min） Secondary Loop Work Frequency Voltage Endurance (1 minute)	V	2000
12	額定單個(gè)/背對(duì)背電容器組開斷電流 Rated Single/Back to Back Capacitor Group On and Off Current	A	630/400
13	額定電容器組關(guān)合涌流 Rated Capacitor Group Enclosed Surge	KA	12.5(頻率不大于Frequency not larger than 1000HZ)
14	機(jī)械壽命 Mechanical Lifespan	次 Times	20000
15	額定電流開斷次數(shù) Rated Current On and Off Times		20000
16	額定短路電流開斷次數(shù) Rated Short-circuit Current On and Off Times		50
17	動(dòng)、靜觸頭允許磨損累計(jì)厚度 Allowed Worm Accumulated Thickness of Dynamite and Static Contact Head	mm	3
18	額定操作順序 Rated Operating Sequence		OFF分-0.3S-ON/OFF合分-180S-ON/OFF