I-China VD4 series vacuum-breaker-breaker ingamadivayisi okufakwa kwe-switchgear yasendlini.Sicela uthinte i-ROCKWILL ngezidingo ezikhethekile zokufaka.I-VD4-R yochungechunge lwe-medium voltage vacuum vacuum circuit breaker enomshini wokusebenza ongemuva wokufakwa endlini ifaka indlela ehlukile yokwakha isigxobo.Isigxobo ngasinye sigcina isiphazamisi se-vacuum esivalwa ku-resin lapho isilinda sibunjwa ngenxa yenqubo ekhethekile yokukhiqiza.Le ndlela yokwakha ivikela isiphazamisi se-vacuum ekushaqekeni, ekungcoleni nasekujikeni.
Indlela yokusebenza iwuhlobo lwamandla agciniwe angenawo uhambo olunokuvulwa nokuvala okuzimele ngaphandle kokunaka isenzo somqhubi.Indlela yokusebenza isetshenziswa kabanzi kuwo wonke ama-circuit breaker we-VD4-R anokulawula okungaphambili.
I-circuit breaker ingalawulwa ukude uma ifakelwe izesekeli zikagesi ezizinikele (i-gearmotor, ukukhululwa kokuvula nokuvala).
Indlela yokusebenza, izigxobo ezintathu kanye nezinzwa zamanje (uma zihlinzekiwe) zifakwe ohlakeni lwensimbi olungenamasondo.Ukwakhiwa kuhlangene ikakhulukazi, kuqinile futhi kunesisindo esilinganiselwe.
I-VD4-R yochungechunge lwama-circuit breaker anendlela yokusebenza yangemuva ingamadivayisi engcindezi avalwe impilo yonke.(Izimiso IEC 62271-100)
| Vacuum-breaker-circuit | **4/R 12 | **4/R 17 | **4/R24 | |||||||
| Amazinga | * | * | * | |||||||
| I-voltage elinganiselwe | I-Ur(kV) | 12 | 17.5 | 24 | ||||||
| Isilinganiso se-voltage ye-insulation | Us(kV) | 12 | 17.5 | 24 | ||||||
| Melana ne-voltage ku-50Hz | Ud(kV) | 28 | 38 | 50 | ||||||
| Impulse imelana ne-voltage | Phezulu(kV) | 75 | 95 | 125 | ||||||
| Ikalwe imvamisa | fr(Hz) | 50-60 | 50-60 | 50-60 | ||||||
| Ikalwe ku-thermal current | I-Ir(A) | 630 | 800 | 1250 | 630 | 800 | 1250 | 630 | 800 | 1250 |
| Umthamo wokuphulwa komsebenzi olinganiselwe (i-symmetrical rated short-circuit current) | I-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 nesikhathi esifushane (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 | * | * | * | |||||||
| Isikhathi sokuvula | ms | 40...60 | 40...60 | 40...60 | ||||||
| Isikhathi se-arcing | ms | 10...15 | 10...15 | 10...15 | ||||||
| Isikhathi sokuphumula esiphelele | ms | 50...75 | 50...75 | 50...75 | ||||||
| Isikhathi sokuvala | ms | 30...60 | 30...60 | 30...60 | ||||||
| Ikhodi | Izinguqulo ezitholakalayo | |||||||||
| Ivala inkinobho yokuphusha | **ama-4 ama-circuit-breaker anendlela yokusebenza yangemuva ayatholakala izinguqulo ezilandelayo: | |||||||||
| Inkomba evuliwe/evaliwe | ||||||||||
| Ikhishiwe | Ibanga eliphakathi P=()mm | Kulungisiwe | Iyasuswa | |||||||
| Ikhawunta yokusebenza | 210 | 210 | ||||||||
| Isibambo sokushaja mathupha | 230 | 230 | ||||||||
| Ivula inkinobho yokuphusha | 250 | 250 | ||||||||
| Ukudluliselwa kokuvikela | 275 | 275 | ||||||||
| Ibhokisi letheminali yokulethwa | 300 | 300 | ||||||||
| I-transformer yamanje | 310 | 310 | ||||||||
| Ipolo | ||||||||||
Ngu-Eva wase-Tunisia - 2018.10.09 19:07 Ngu-Novia wase-Nicaragua - 2017.10.13 10:47 
