I-China VD4 series vacuum vacuum-breakers zizixhobo zofakelo lwangaphakathi lwe-switchgear.Nceda uqhagamshelane ne-ROCKWILL ngeemfuno ezizodwa zofakelo.I-VD4-R yoluhlu oluphakathi lwezaphuli zesekethe zesivacuum zombane ezinendlela yokusebenza esecaleni yofakelo lwangaphakathi lubonisa ubuchule bokwakha ipali eyahlukileyo.Ipali nganye igcina isiphazamisi sevacuum esibiyelwe kwiresin xa isilinda sibunjwa ngenxa yenkqubo ekhethekileyo yokwenziwa.Le ndlela yokwakha ikhusela isiphazamisi sevacuum ekothukeni, kungcoliseko kunye nokuxinana.
Umatshini wokusebenza luhlobo lwamandla agciniweyo oluhamba simahla kunye nokuvulwa ngokuzimeleyo kunye nokuvala nokuba sithini isenzo somsebenzisi.Indlela yokusebenza isetyenziswa ngokubanzi kuzo zonke ii-VD4-R series circuit-breakers kunye nolawulo lwangaphambili.
I-circuit-breaker inokulawulwa kude xa ifakelwe izixhobo zombane ezinikezelweyo (i-gearmotor, ukukhululwa kokuvula kunye nokuvala).
Indlela yokusebenza, iipali ezintathu kunye ne-sensor zangoku (ukuba zinikezelwe) zifakwe kwisakhelo sesinyithi ngaphandle kwamavili.Ulwakhiwo luxinene ngakumbi, lomelele kwaye linobunzima obulinganiselweyo.
I-VD4-R ichungechunge lwe-circuit-breakers kunye neendlela zokusebenza ezisecaleni zixhobo zoxinzelelo ezitywinwe ubomi obude.(Imigangatho ye-IEC 62271-100)
| Vacuum-breaker-circuit | **4/R 12 | **4/R 17 | **4/R 24 | |||||||
| Imigangatho | * | * | * | |||||||
| Umbane olinganisiweyo | Ur(kV) | 12 | 17.5 | 24 | ||||||
| I-voltage elinganisiweyo yokufakelwa | Us(kV) | 12 | 17.5 | 24 | ||||||
| Ukumelana nombane kwi-50Hz | Ud(kV) | 28 | 38 | 50 | ||||||
| Impulse imelana nombane | Phezulu(kV) | 75 | 95 | 125 | ||||||
| Ilinganiswe rhoqo | fr(Hz) | 50-60 | 50-60 | 50-60 | ||||||
| Ilinganiswe kwi-thermal current | Ir(A) | 630 | 800 | 1250 | 630 | 800 | 1250 | 630 | 800 | 1250 |
| Umthamo wokwaphulwa komsebenzi olinganisiweyo (i-symmetrical rated i-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 | / | / | / | ||
| Ukumelana nexesha elifutshane (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 | / | / | / | ||
| Ukwenza umthamo | 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 | |||||
| Ukwenza umthamo | * | * | * | |||||||
| Ixesha lokuvula | ms | 40...60 | 40...60 | 40...60 | ||||||
| Ixesha le-arcing | ms | 10...15 | 10...15 | 10...15 | ||||||
| Ixesha lekhefu lilonke | ms | 50...75 | 50...75 | 50...75 | ||||||
| Ixesha lokuvala | ms | 30...60 | 30...60 | 30...60 | ||||||
| Ikhowudi | Iinguqulelo ezikhoyo | |||||||||
| Ukuvala iqhosha lokutyhala | **Izaphuli-mthetho ezi-4 ezinendlela yokusebenza esecaleni ziyafumaneka ezi nguqulelo zilandelayo: | |||||||||
| Isalathisi esivuliweyo/esivaliweyo | ||||||||||
| Ikhutshiwe | Umgama ophakathi P=()mm | Ilungisiwe | Iyasuswa | |||||||
| Ikhawuntara yokusebenza | 210 | 210 | ||||||||
| Umqheba wokutshaja ngesandla | 230 | 230 | ||||||||
| Ukuvula iqhosha lokutyhala | 250 | 250 | ||||||||
| Ukukhuselwa kodluliso | 275 | 275 | ||||||||
| Ibhokisi ye-terminal yonikezelo | 300 | 300 | ||||||||
| I-transformer yangoku | 310 | 310 | ||||||||
| Polo | ||||||||||
NguEva ovela eTunisia - 2018.10.09 19:07 NguNovia ovela eNicaragua - 2017.10.13 10:47 
