12kV 1250A 31.5kA I-Voltage Vacuum Circuit Breaker

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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)

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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      

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