12kV 1250A 31.5kA Seqhoqho sa Sekhechana sa Potoloho sa Voltage e Phahameng

  • lintlha tsa sehlahisoa
  • LBH
  • Khoasolla

China VD4 series vacuum circuit-breakers ke lisebelisoa tsa ho kenya li-switchgear tse ka hare.Ka kopo ikopanye le ROCKWILL bakeng sa litlhoko tse khethehileng tsa ho kenya.VD4-R letoto la li-voltage medium vacuum circuit breaker tse nang le mochini o sebetsang oa lateral bakeng sa ho kenya ka tlung li na le mokhoa o arohaneng oa kaho ea lipalo.Palo e 'ngoe le e' ngoe e na le sesebelisoa sa vacuum se kenngoeng ka har'a resin ha silinda e bōptjoa ka lebaka la ts'ebetso e khethehileng ea tlhahiso.Mokhoa ona oa ho aha o sireletsa sesireletsi sa vacuum hore se se ke sa tšoha, silafatso le condensation.
Mochini oa ts'ebetso ke mofuta oa motlakase o bolokiloeng o sa tsamaeeng o nang le ho bula le ho koala ho ikemetseng ho sa tsotelehe ketso ea opareitara.Mokhoa oa ts'ebetso o sebelisoa haholo ho li-circuit-breaker tsohle tsa VD4-R tse nang le taolo e ka pele.
Sekhechana sa potoloho se ka laoloa hole ha se kentsoe lisebelisoa tsa motlakase tse inehetseng (gearmotor, ho bula le ho koala tokollo).
Mochini oa ts'ebetso, lipalo tse tharo le li-sensor tsa hajoale (haeba li fanoe) li kentsoe holim'a foreimi ea tšepe ntle le mabili.Mohaho o na le compact ka ho khetheha, o tiile ebile o boima bo fokolang.
VD4-R letoto la li-circuit-breaker tse nang le mekhoa ea ho sebetsa ka morao ke lisebelisoa tsa khatello tse tiisitsoeng bophelo bohle.(Melao ea IEC 62271-100)

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Vacuum-circuit-breaker   **4/R 12 **4/R 17 **4/R 24
Litekanyetso   *     *     *    
Matla a lekantsoeng Ur(kV) 12     17.5     24    
Tekanyetso ea motlakase oa insulation Us(kV) 12     17.5     24    
E mamella voltage ho 50Hz Ud(kV) 28     38     50    
Tšusumetso e mamella voltage Holimo(kV) 75     95     125    
E lekantsoe khafetsa fr(Hz) 50-60     50-60     50-60    
E lekantsoe mocheso oa motlakase Ir(A) 630 800 1250 630 800 1250 630 800 1250
Rated duty breaking capacity
(symmetrical rated short-circuit current)
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 / / /
Nako e khuts'oane ea ho mamella hona joale(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 / / /
Ho etsa bokgoni 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      
                 
Ho etsa bokgoni   * * *
Nako ea ho bula ms 40...60 40...60 40...60
Arcing nako ms 10...15 10...15 10...15
Kakaretso ea nako ea khefu ms 50...75 50...75 50...75
Nako ea ho koala ms 30...60 30...60 30...60
Khoutu Liphetolelo tse fumanehang
Konopo ea ho koala **4 li-circuit-breaker tse nang le mochini o sebetsang oa lateral lia fumaneha
liphetolelo tse latelang:
Sesupo se bulehileng/se koetsoeng      
E tlositsoe Sebaka-bohareng P=()mm E tsitsitse E tlosehang
Counter ea ts'ebetso 210 210
Sehele sa ho tjhaja ka bowena 230 230
Ho bula konopo 250 250
Relay ea tšireletso 275 275
Lebokose la ho tsamaisa thepa 300 300
Transformer ea hona joale 310 310
Polo      

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