12kV 1250A 31.5kA High Voltage Vacuum Circuit Breaker

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China VD4 mndandanda wa vacuum circuit-breakers ndi zida zopangira ma switchgear m'nyumba.Chonde lemberani ROCKWILL kuti mupeze zofunikira zapadera.VD4-R mndandanda wapakati ma voltage vacuum circuit breakers okhala ndi makina ogwirira ntchito opangira m'nyumba amakhala ndi njira yopangira mizati.Pando iliyonse imakhala ndi chosokoneza cha vacuum chomwe chimakutidwa ndi utomoni pomwe silinda imawumbidwa chifukwa cha njira yapadera yopangira.Njira yomangira iyi imateteza chosokoneza cha vacuum ku mantha, kuipitsidwa ndi kukhazikika.
Makina ogwiritsira ntchito ndi mtundu wamagetsi osungidwa opanda maulendo omwe amatsegula ndi kutseka mosasamala kanthu za zochita za wogwiritsa ntchito.Makina ogwiritsira ntchito amagwiritsidwa ntchito kwambiri pamagulu onse a VD4-R ozungulira omwe amawongolera kutsogolo.
Wowononga dera amatha kuyendetsedwa kutali atayikidwa ndi zida zamagetsi zodzipereka (gearmotor, kutsegula ndi kutseka kumasulidwa).
Makina ogwiritsira ntchito, mizati itatu ndi masensa omwe alipo (ngati aperekedwa) amaikidwa pazitsulo zachitsulo popanda mawilo.Chomangacho chimakhala chophatikizika, cholimba komanso cholemera pang'ono.
VD4-R mndandanda wophwanya ma circuit-breaker okhala ndi ma lateral opareshoni ndi zida zomata kwa moyo wonse. (Miyezo IEC 62271-100)

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Vacuum circuit breaker   4/R 12 **4/R17 **4/R24
Miyezo   *     *     *    
Adavotera mphamvu Ur(kV) 12     17.5     24    
Adavotera voteji ya insulation Ife (kV) 12     17.5     24    
Kupirira mphamvu pa 50Hz Ud (kV) 28     38     50    
Mphamvu zimapirira voteji Kukwera (kV) 75     95     125    
Adavoteledwa pafupipafupi f (Hz) 50-60     50-60     50-60    
Adavotera matenthedwe Ine (A) 630 800 1250 630 800 1250 630 800 1250
Chovoteledwa ntchito kuswa mphamvu
(chiwerengero chachifupi chozungulira pano)
Isc(kA) 12.5 / / 12.5 / / 12.5 / /
16 16 16 16 16 16 16 16 16
20 20 20 20 20 20 20 20 20
25 25 25 25 25 25 / / /
Kupirira kwakanthawi kochepa (3s) Ik(kA) 12.5 / / 12.5 / / 12.5 / /
16 16 16 16 16 16 16 16 16
20 20 20 20 20 20 20 20 20
25 25 25 25 25 25 / / /
Kupanga luso IP(kA) 31.5 / / 31.5 / / 31.5 / /
40 40 40 40 40 40 40 40 40
50 50 50 50 50 50 50 50 50
63 63 63 63 63 63      
                 
Kupanga luso   * * *
Nthawi yotsegulira ms 40...60 40...60 40...60
Arcing nthawi ms 10...15 10...15 10...15
Nthawi yopuma yonse ms 50...75 50...75 50...75
Nthawi yotseka ms 30...60 30...60 30...60
Kodi Mabaibulo omwe alipo
Kutseka kukankhira ** 4 ophwanya circuit okhala ndi lateral opareshoni akupezeka mkati
mitundu yotsatirayi:
Chizindikiro chotseguka / chotsekedwa      
Zatulutsidwa Mtunda wapakati P=()mm Zokhazikika Chochotseka
Operation counter 210 210
Chogwirizira pamanja 230 230
Kutsegula batani 250 250
Relay chitetezo 275 275
Delivery terminal box 300 300
Transformer yamakono 310 310
Polo      

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