I-miniature circuit breaker, esetyenziselwa ukukhusela ukhuseleko lwakho lomntu

I-Miniature circuit breaker luhlobo lwe-switchgear yesekethe ye-voltage ephantsi, esetyenziselwa ukukhusela izixhobo zombane kunye nokhuseleko lomntu.

Iziqhekeza ezincinci zeesekethe zingafakwa ngaphakathi ngaphakathi (umzekelo, kwiikhabhinethi zokusabalalisa) okanye ngaphandle (umzekelo, kwiibhokisi zokuhambisa).

1. Kukho iintlobo ezintathu zeendlela zokufakela: i-fixed, iselula kwaye imisiwe.

2. I-current rated current ye-circuit breaker ihlulwe kwiintlobo ze-N kunye ne-P, i-N ikhoyo ngoku kunye neyona ndawo iphezulu, i-P ikhoyo ngoku kunye neyona ndlela iphantsi, kwaye i-N ihlulwe ibe yi-L, L, N yi-1,2 -3A, kunye no-B ngu-2A ngokwe-rated current.

Amaqhekeza amancinci amancinci angasetyenziselwa kwiindawo zokuhlala, izakhiwo zeofisi, iifektri kunye nezinye iindawo.

I. Ukuhlelwa kwamaqhekeza amancinci amancinci.

(1) Ihlelwe yi-Arc Extinguishing Medium: Kukho iinkqubo ezintathu zokuCima i-Arc: Umoya, iVacuum okanye i-Air-vacuum Mixing.

Iinkqubo zomoya zifanelekile kwimigca yokuhambisa i-AC ye-voltage ephantsi kunye ne-voltage elinganisiweyo ukuya kwi-690V kwaye ayikwazi ukumelana naluphi na uhlobo lokungaphumeleli kwe-short-circuit xa imigca engathathi hlangothi (N) kunye ne-zero (D) ixhunyiwe, njengoko kukho ubuninzi beegesi ezingenayo ngaphakathi. umoya.

Ukongeza, iinkqubo ezine-voltage ezilinganisiweyo ze-690V (N) okanye ngaphezulu (ngaphezulu kwe-1800V) azikwazi ukudlula kwimibhobho yentsimbi okanye iipleyiti.

Inkqubo ye-vacuum ifanelekile kwi-voltage elinganisiweyo ukuya kwi-660V, umthwalo ophezulu kwaye akukho mgca wephutha lomhlaba.

(2) Ihlelwe ngendlela yokusebenza: kukho iindidi ezimbini: ukusebenza ngesandla kunye nokusebenza ngokuzenzekelayo.

Ukusebenza ngesandla: isetyenziselwa ukudibanisa okanye ukuphula isiphaluka esiqhelekileyo kunye nesiphaluka esingaqhelekanga, umqhubi wencwadi usebenzisa i-switch manual, i-handle okanye iqhosha ukuze ufezekise.

Ukusebenza ngokuzenzekelayo: ngokusebenzisa i-circuit breaker switch kwiqhosha lokulawula, ukufezekisa imisebenzi efunekayo.

(3) Ihlelwe ngokomgaqo wokusebenza: ngokwendlela yokusebenzisana phakathi koqhagamshelwano kunye nenkqubo yesenzo, zihlulwe zibe zimbini iintlobo;

Omnye ngoomatshini;enye yi-electrodynamic.

I-Mechanical circuit breaker isetyenziswa ikakhulu kwi-50HZ AC, 660V DC, inkqubo yombane ephezulu.

I-Electrodynamic action circuit breaker isetyenziswa kakhulu kwi-AC 1000V inkqubo okanye umgca wokusabalalisa ombane ophantsi;ezinye iintlobo ezifana ne-fuses, i-reactors, iiswitshi zingaba ngukhuseleko lwangoku kunye nokulawula.

I-Electrodynamic action circuit breaker yahlulwe kwisixhobo sokuhambisa umoya kunye nesixhobo sokuhambisa igiya.

(4) Ngokohlobo lwe-arc yokucima umbane, kukho iintlobo ezintathu: inkqubo yokucima i-arc yokucima umoya, inkqubo yokucima i-arc yokucima kunye ne-electric inert arc yokucima inkqubo ye-composite yegumbi.

Iinkqubo zokucima i-arc ye-inert zinokwahlulwa zibe ngamacandelo amabini: ukuhlukaniswa komgca ongathathi hlangothi kunye nokuhlukaniswa komgca ongathathi hlangothi.Eyangaphambili ingasetyenziselwa kwiisekethe ezingathathi hlangothi ngeenjongo ezahlukeneyo, le yokugqibela ayinakusetyenziswa kuyo yonke imigca engathathi hlangothi (efana neendawo zokuhlala kunye nezakhiwo zeofisi), kwaye le yokugqibela isetyenziswa kakhulu kuzo zonke iintlobo zemigca yombane (njengezakhiwo zoshishino kunye neendawo zokugcina iimpahla) ngaphandle kweendawo zokuhlala.

Inkqubo yokucima i-arc yombane ingasetyenziselwa kuzo zonke iisekethe ezifuna ukukhusela umgca wamandla kwingozi yombane;ingasetyenziselwa kuzo zonke iisekethe ezifuna ukukhusela umgca wamandla kwingozi yombane ngaphandle komsebenzi wokukhusela okanye ngaphandle komsebenzi wokukhusela phantsi kweemeko zokusebenza ngokubanzi.Inkqubo yokucima i-arc yombane ingenza "isiphaluka esifutshane" phakathi komthombo wamandla, umthwalo kunye nomgca ongathathi hlangothi, onokunqumla impazamo yangoku ngokukhawuleza ukunciphisa umthwalo wokutshisa ngakumbi.

(5) Ukuhlelwa komsebenzi: kukho i-unipolar kunye ne-multipolar breakers;zombini iimodeli zingasetyenziselwa imigca yamandla okanye iikhabhinethi zokusabalalisa, ezibizwa ngokuba yi-single-phase kunye ne-multiphase circuit breakers (oko kukuthi, ukuba nezigaba ezibini okanye ngaphezulu) kunye nezigaba ezimbini zesekethe (ezaziwa ngokuba ngabaphuli beesekethe zesigaba sesithathu);i-single-phase and two-phase phase breakers have their special control parts, such as: izigaba ezithathu zangoku-limiting circuit breakers, njl.;abaqhankqalazi besigaba sesibini basetyenziswa kakhulu kwiinkqubo zokusasazwa kwe-10 kV okanye ngaphantsi, okanye njengezitshixo zokukhusela kwiikhabhinethi zokusasazwa kwe-10 kV okanye ngaphantsi.

(6) Ihlelwe ngokwemiqathango yokusetyenziswa: kukho amancinci amancinci kunye nenkulu yangoku;