Intshayelelo: Kubomi bethu bemihla ngemihla kunye nenkqubo yemveliso, umthwalo ongalungelelananga wesigaba sesithathu uhlala usenzeka.Ingxaki yokusetyenziswa kombane ibisoloko iyingqwalasela yelizwe, ngoko ke kufuneka siqonde umgaqo wokwenzeka kokungalingani kwezigaba ezithathu.Qonda iingozi kunye nezisombululo zokungalingani kwamanqanaba amathathu.
Umgaqo wokungalingani kwesigaba sesithathu kukuba i-amplitudes yesigaba sesithathu samanje okanye i-voltage kwinkqubo yamandla ayihambelani.Umahluko we-amplitude udlula uluhlu oluxeliweyo.Ukuhanjiswa komthwalo ongalinganiyo kwisigaba ngasinye, ukungafani kokusetyenziswa kwamandla ombane kunye nokufikelela kwinqanaba elilodwa lomthwalo wamandla aphezulu zizizathu eziphambili zokungalingani kwesigaba sesithathu.Kukwabandakanya ukungonelanga kolwakhiwo lwegridi yamandla, ukuguqulwa nokusebenza kunye nokugcinwa, okusisizathu esinenjongo.Ukunika umzekelo olula, kubomi bemihla ngemihla, izixhobo ezininzi zendlu kunye nezixhobo zokukhanyisa ziyimithwalo yesigaba esisodwa.Ngenxa yenani elikhulu kunye namaxesha ahlukeneyo okusebenza, amandla ombane wabanye abasebenzisi aya kuba phantsi, okukhokelela ekusilelani kwezinye izixhobo zombane ukusebenza ngokuqhelekileyo.Amandla ombane aphezulu wabanye abasebenzisi aya kubangela ingozi enkulu ngakumbi ekwaluphaleni kweesekethe kunye ne-insulators.Ezi zinokushwankathelwa njengomonakalo obangelwa kukungalingani kwezigaba ezithathu.
Umonakalo obangelwa ukungalingani kwesigaba sesithathu ngowokuqala ukuthwala umonakalo kwi-transformer.Ngenxa yomthwalo ongalinganiyo wesigaba sesithathu, i-transformer isebenza kwi-asymmetric state, okubangelwa ukwanda kokulahlekelwa kwamandla ombane, okubandakanya ukulahlekelwa komthwalo kunye nokulahlekelwa ngumthwalo.I-transformer iqhuba phantsi kwemeko engalinganiyo yomthwalo wesigaba sesithathu, esiza kubangela ukugqithisa ngokugqithisileyo.Ukushisa kweendawo zetsimbi zendawo kuyanda, kwaye kukhokelela kumonakalo we-transformer.Ngokukodwa, ilahleko yobhedu ye-transformer iyanda, enganciphisi nje umgangatho wokuphuma kwamandla ombane, kodwa ibangela ukuba kube lula ukulinganisa okungachanekanga kwamandla ombane.
Ukongeza kwingozi kwi-transformer, inempembelelo kwezinye izixhobo zombane, kuba ukungalingani kwamandla ombane wesigaba sesithathu kuya kukhokelela ekungalinganini kwangoku, okuya kwandisa ubushushu bemoto, ukwandisa ukusetyenziswa kwamandla, kwaye wenze ukungcangcazela.Ubomi benkonzo yezixhobo zombane buncitshiswe kakhulu, kwaye iindleko zokugcina kunye nokulungiswa kwezixhobo zemihla ngemihla zanda.Ngokukodwa xa kwenzeka ukugqithiswa kunye nesiphaluka esifutshane, kulula ukubangela ezinye iilahleko (ezifana nomlilo).Ngexesha elifanayo, njengoko i-voltage kunye nokungalingani kwangoku kwanda, oku kwandisa ukulahleka komgca wesekethe.
Xa sijongene nokungalingani kwamanqanaba amathathu okudale umonakalo omkhulu kuthi, kufuneka size njani nezisombululo?Eyokuqala kufuneka ibe kukwakhiwa kwegridi yamandla.Ekuqaleni kolwakhiwo lwegridi yombane, kufuneka isebenzisane namasebe karhulumente afanelekileyo ukwenza isicwangciso sothungelwano lombane olufanelekileyo.Zama ukusombulula ingxaki yokungalingani kwezigaba ezithathu kumthombo wophuhliso lwengxaki.Ngokomzekelo, ukwakhiwa kwenethiwekhi yokusabalalisa amandla kufuneka kulandele umgaqo "womthamo omncinci, iindawo zokusabalalisa ezininzi, kunye ne-radius emfutshane" yokukhethwa kwendawo yokusabalalisa i-transformers.Yenza umsebenzi omhle wofakelo lwemitha ye-voltage ephantsi, ukwenzela ukuba ukuhanjiswa kwezigaba ezithathu kufane ngokusemandleni, kwaye ugweme ukwenzeka kokuphambuka kwesigaba somthwalo.
Ngexesha elifanayo, kuba ukungalingani kwesigaba sesithathu kuya kubangela ukuba okwangoku kubonakale kumgca ongathathi hlangothi.Ngoko ke, i-multi-point grounding of line neutral kufuneka yamkelwe ukunciphisa ukulahlekelwa kwamandla omgca ongathathi hlangothi.Kwaye ixabiso lokumelana nomgca ongathathi hlangothi akufanele libe likhulu kakhulu, kwaye ixabiso lokumelana likhulu kakhulu, eliya kwandisa ngokulula ukulahleka komgca.
Xa siqonda umgaqo wokungalingani kwezigaba ezithathu, ingozi yayo kunye nendlela yokujongana nayo, kufuneka sizame ukwenza ibhalansi yezigaba ezintathu.Xa i-current idlula kwi-line wire kwi-network yonikezelo lwamandla, kuba intambo yomgca ngokwayo inexabiso lokumelana, iya kubangela ukulahlekelwa kwamandla ombane.Ngoko ke, xa inqanaba lesithathu langoku likhula ngokulinganisela, ixabiso lokulahlekelwa kwamandla kwenkqubo yokubonelela ngombane liphantsi.
Isixhobo sokulawula ukungalingani kwesigaba sesithathu esiveliswe nguHongyan Electric sinokulawula ngokufanelekileyo iingxaki zesigaba sesithathu sokungalingani, i-voltage ephantsi ye-terminal, kunye nembuyekezo ye-bidirectional ye-reactive current kwinguqu kunye nokuphuculwa kwenethiwekhi yokusabalalisa.
Ixesha lokuposa: Apr-14-2023