Ukusetyenziswa kwe-ATSE-Automatic transfer switch inokusombulula ingxaki edibeneyo yemigca engathathi hlangothi

Utshintshiselwano oluzenzekelayo (ATSE)inokusombulula ingxaki edlulanayo yemigca engathathi hlangothi.Ke sithetha ukuthini ngomgca ongathathi hlangothi?

Umzobo 1: Cinga ukuba i-voltage yeAmandla eDCunikezelo yi-220V, kunye nexabiso lokuchasana le-resistors ezintathu zomthwalo R yi-10 Ohms.Masibale i-voltage kwi-resistor yomthwalo weRa:

Kwi-resistor Ra, sine:

Qaphela ukuba kukho imisinga emithathu ehamba ngokuxhathisa iRa, enye ephuma kuyoukunikezwa AmandlaI-Ea kwaye ibuyela kwipali engafanelekanga yonikezelo lwamandla nge-LINE N. Ezinye ezimbini ziphuma kwi-Ea kwaye zibuyele kwi-terminal ekhabayo nge-Eb okanye i-Ec.Kodwa ngenxa yokuba amandla e-electromotive yemithombo emibini kule loop iyalingana kwaye ichasene, okwangoku ngu-zero.
Enye into efuna ingqalelo ekhethekileyo kukuba i-voltage kwindawo ye-N yi-0V.
Masijonge isazobe sesi-2 kwakhona: u-N emfanekisweni uyahlukana abe ngamanqaku amabini, uN kunye no-N'.Yintoni amandla ombane ngapha kweRasistor?Kulula ukuxelela ukuba i-voltage ngaphesheya kweRa yi-0V.
Ngokuqinisekileyo, isiseko apha kukuba: iiparitha ezintathu zonikezelo lwamandla kwisekethe zihambelana ngokupheleleyo, kwaye imilinganiselo yokumelana nayo ihambelana ngokupheleleyo, kunye neeparitha zocingo, ezizezi ukuchasana nomgca, nazo zihambelana ngokupheleleyo.
Kumgca wangempela, ezi parameters aziyi kufana ncam, ngoko iRa iya kuba ne-voltage ephantsi kakhulu.Masiyibize ngombane we-N.

Masijonge lo mfanekiso ungezantsi:

Njengoko sinokubona, unikezelo lwamandla kwiFIG.I-3 kunye ne-4, i-FIG.1 kunye neFIG.I-2 itshintshiwe ukusuka kwi-DC ukuya kwisigaba sesithathu se-AC, kwaye i-voltage yesigaba i-220V, ngoko umbane womgca we-380V ngokwemvelo, kwaye umehluko wesigaba phakathi kwezigaba ezintathu yi-120 degrees.
Yintoni i-voltage ngaphesheya kwe-resistor Ra kwi-Figure 3?
Ekubeni injongo yesi sithuba kukubonisa ingxaki kuphela, kungekhona ukwenza ukubalwa kobungakanani besekethe.Akuyi kufuneka ukuba senze ubalo oluchanekileyo.
Kodwa ngokuqinisekileyo sinokuyazi loo nto, yeFIG.I-3, i-voltage kwi-resistor Ra nayo iphantse ilingane ne-217.8V kunye ne-interphase voltage yi-zero.
Kwi-FIG.I-4, siyabona ukuba i-n-line iqhekeza kwi-N kunye ne-N ', ngoko kwenzeka ntoni kwi-voltage kwindawo ethi N'?
Impendulo iyafana kwi-DC.Ukuba isekethe i-symmetric ngokupheleleyo, i-Un 'ilingana no-0V;Ukuba iiparamitha zesekethe azingqinelani, i-Un 'ayilingani no-0V.
Kwisiphaluka esisebenzayo, ngokukodwa kwisiphaluka sokukhanyisa, isigaba sesithathu se-AC si-asymmetric, ngoko ke ngoku ihamba ngomgca we-N okanye umgca we-PEN (umgca we-zero).Emva kokuba umgca we-N okanye umgca we-PEN uqhawule, i-voltage emva kwendawo yokuphumla iphakama.Kwiimeko ezigqithiseleyo, inyukela kwi-voltage yesigaba, eyi-220V.

Makhe sijongeATSE:

Bona ngezantsi:

Kulo mfanekiso sibona umgca ombini ongenayo, iATSE, kwaye ngokuqinisekileyo umthwalo ulula.Apha, nangona kunjalo, inani lezibane kwizigaba ezithathu ziyahluka, kunye nesigaba A sesona silayishwe kakhulu.
Makhe sibe nomfanekiso-ngqondweni wokoATSEngoku ivala i-loop ye-T1 ekhohlo, kwaye umsebenzi wangoku usuka kwi-T1 ukuya kwi-T2.
Ukuba, ngexesha lokuguqulwa, umgca we-1N unqunyulwe kuqala kwaye isigaba sesithathu sinqunyulwe kamva, ngoko ngexesha lokuguqulwa, sinokwazi ngokukhawuleza kulwazi olungentla ukuba i-voltage ye-neutral line yomthwalo inokuphakama okanye yehle.Ukuba i-voltage kwisibane idlula i-voltage yesigaba kakhulu, isibane siya kutshisa ngexesha lenkqubo yokuguqula.
Kulapho ukudibana kwemigca engathathi hlangothi kungena khona.

Sithini isisombululo?

ATSEkunye nomsebenzi onqamlekileyo womgca ongathathi hlangothi, xa utshintshile, okokuqala qinisekisa ukuba i-voltage yesigaba sesithathu iguqulwa kuqala, kwaye emva koko umgca we-N utshintshile ekugqibeleni;Xa ivuliwe, qinisekisa kuqala ukuba uvule umgca we-N, uze uvule i-voltage yesigaba sesithathu.Nokuba, i-ATSE inokugqithela kwimigca engu-N yazo zombini iindlela ngoko nangoko.Lo ngulayini ongathathi hlangothi umsebenzi wokudityaniswa.