Ukulimala kokungalingani komthwalo wezigaba ezintathu ku-transformer yokusabalalisa

I. Ukulimala kokungalingani komthwalo wezigaba ezintathu ku-transformer yokusabalalisa

1. Ukwanda kokulahlekelwa umugqa: ukulahlekelwa umthwalo we-transformer yokusabalalisa kuyashintsha ngomthamo womthwalo we-transformer, futhi kuhambelana nesikwele somthamo womthwalo. Uma i-transformer idlulisela umthamo ofanayo, umthwalo wezigaba ezintathu awulingani, futhi ukulahlekelwa okusebenzayo kuyanda.

Ngaphezu kwalokho, kuzoba nokulahlekelwa kwamandla entanjeni. Uma ukungalingani kukhulu, kulapho ukulahlekelwa komugqa kukhulu khona.

2. Khulisa ukulahleka kwamandla kwe-transformer yokusabalalisa: i-transformer yokusabalalisa iyimishini eyinhloko yokuphakelwa kwamandla yegridi yamandla ene-voltage ephansi. Uma isebenza ngaphansi komthwalo wezigaba ezintathu ongalingani, ukulahleka kwe-transformer yokusabalalisa kuzokhula. Ngoba ukulahleka kwamandla kokusabalalisa kuyashintsha ngezinga lokungalingani komthwalo.

3. Umphumela onciphile we-distribution transformer: lapho i-distribution transformer iklanywa, isakhiwo sayo sokugoqa saklanywa ngokwesimo sokusebenza kwebhalansi yomthwalo, futhi ukusebenza kwayo kokugoqa kuyafana, futhi amandla alinganisiwe esigaba ngasinye ayalingana.

Umthamo omkhulu ovumelekile we-transformer yokusabalalisa unqunyelwe umthamo olinganiselwe wesigaba ngasinye. Uma i-transformer yokusabalalisa isebenza ngaphansi komthwalo wezigaba ezintathu ongalingani, isigaba esinomthwalo olula sizoba nomthamo owengeziwe, ngaleyo ndlela kuncishiswe umkhiqizo we-transformer yokusabalalisa.

Izinga lokunciphisa umkhiqizo lihlobene nezinga lokungalingani komthwalo wezigaba ezintathu. Uma umthwalo wezigaba ezintathu ongalingani umkhulu, kulapho umkhiqizo we-transformer yokusabalalisa uncishiswa kakhulu. Ngakho-ke, lapho umthwalo wezigaba ezintathu ungalingani, umthamo wokukhipha we-transformer awukwazi ukufinyelela inani elilinganiselwe, futhi umthamo wayo osele uncishiswa ngokufanele, futhi umthamo wokulayisha ngokweqile nawo uncishisiwe.

Uma i-transformer yokusabalalisa isebenza ngaphansi kwesimo sokulayisha ngokweqile, kulula ukubangela i-transformer yokusabalalisa ukuthi ishise, futhi ibangele ngisho ne-transformer yokusabalalisa ukuthi ishise ezimweni ezimbi kakhulu.

4. I-transformer yokusabalalisa ikhiqiza umugqa wamanje ongu-zero: i-transformer yokusabalalisa isebenza ngaphansi kwesimo somthwalo wezigaba ezintathu ongalingani, izokhiqiza umugqa wamanje ongu-zero, umugqa wamanje uzoshintsha ngezinga lokungalingani komthwalo wezigaba ezintathu, uma izinga lokungalingani lilikhulu, umugqa wamanje ongu-zero uba mkhulu.

Uma umugqa wamanje we-zero sequence udlula esithombeni sensimbi, uzokhiqiza i-hysteresis kanye nokulahleka komugqa wamanje we-eddy, okuzokwenza izinga lokushisa lendawo lelungu lensimbi lokusabalalisa lishintshe likhuphuke futhi lishise, futhi ukufakelwa komoya kuzosheshisa ukuguga ngenxa yokushisa ngokweqile, okuholela ekunciphiseni impilo yemishini.

5. Ukuthinta ukusebenza okuphephile kwemishini kagesi: I-transformer yokusabalalisa yakhelwe ngokwesimo sokusebenza kwebhalansi yomthwalo wezigaba ezintathu, futhi ukumelana, ukusabela kokuvuza kanye nokuphazamiseka kokugoqa kwesigaba ngasinye kuyafana.

Uma i-transformer isebenza ngebhalansi yomthwalo wezigaba ezintathu, ugesi wayo wezigaba ezintathu ulingana ngokuyisisekelo, futhi ukwehla kwamandla kagesi kwesigaba ngasinye ngaphakathi kwe-transformer kuyafana ngokuyisisekelo, khona-ke ukuphuma kwamandla kagesi kwezigaba ezintathu kwe-transformer nakho kuyalingana.

Uma i-transformer yokusabalalisa isebenza ngokungalingani komthwalo wezigaba ezintathu, ugesi wokukhipha wesigaba ngasinye awulingani, futhi ukwehla kwamandla kagesi angaphakathi kwezigaba ezintathu kwe-transformer yokusabalalisa akulingani, okuzoholela ekungalinganini kwezigaba ezintathu kwe-voltage yokukhipha ye-transformer yokusabalalisa.

Ngesikhathi esifanayo, i-distribution transformer isebenza ngomthwalo wezigaba ezintathu ongalingani, ugesi wokukhipha wezigaba ezintathu uhlukile, futhi umugqa ongathathi hlangothi uzoba nogesi odlula kuwo. Ngakho-ke umugqa ongathathi hlangothi ukhiqiza ukwehla kwe-impedance voltage, okuholela ekukhukhuleni kwephuzu elingathathi hlangothi, okuholela ekushintsheni kwe-voltage yesigaba, okusongela kakhulu ukusebenza okuphephile kwemishini kagesi.

6. Ukusebenza kahle kwenjini okunciphile: i-transformer yokusabalalisa isebenza ngaphansi kwesimo somthwalo wezigaba ezintathu ongalingani, okuzobangela i-voltage yokuphuma yezigaba ezintathu engalingani. Lapho i-voltage engalingani ingena ku-motor, i-voltage ye-negative sequence ikhiqiza insimu kazibuthe ejikelezayo ephambene nensimu kazibuthe ejikelezayo ekhiqizwa yi-voltage ye-positive sequence, esebenza njengebhuleki.

Kodwa ngenxa yokuthi insimu yamagnetic enhle inamandla kakhulu kunensimu yamagnetic engemihle, injini isajikeleza ibheke insimu yamagnetic enhle. Kodwa-ke, ngenxa yomphumela wokubhuleka wensimu yamagnetic enezingqimba ezingemihle, amandla okukhipha enjini azoncishiswa, futhi ukusebenza kahle kwenjini kuzoncishiswa.

Ngesikhathi esifanayo, ukwenyuka kwezinga lokushisa kanye nokulahlekelwa amandla okusabela kwemoto kuzokhula ngokungalingani kwe-voltage yezigaba ezintathu. Ngakho-ke, akulungile kakhulu futhi akuphephile ukuthi imoto isebenze ngaphansi kwesimo se-voltage yezigaba ezintathu engalingani.

II. Izimbangela zomthwalo wezigaba ezintathu ongalingani

(1) Ukungaqondi kahle ukubaluleka kokulinganisela umthwalo wezigaba ezintathu. Abasebenzi bokuphatha kubaphathi abazange balandele imithetho nemigomo ngokuqinile, hhayi ukufeza izidingo zokuhlola.

(2) inani elikhulu lemishini kagesi yesigaba esisodwa. Eminyakeni yamuva nje, inani elikhulu lemishini kagesi yesigaba esisodwa enamandla aphezulu ingenile endlini evamile. Lapho ukusetshenziswa kwamandla komthwalo wesigaba esisodwa kukhuphuka kakhulu futhi amathuba okusetshenziswa ngasikhathi sinye engaguquki, izinga lokungalingani komthwalo wesigaba ezintathu wegridi yamandla ephansi linganda.

(3) Njengoba abasebenzi bokuphatha bengajwayelene nemithetho eshintshayo kanye nokusatshalaliswa komthwalo wezigaba ezintathu endaweni yesikhulumi, ukusetshenziswa kwabasebenzisi abasha besigaba esisodwa, ikakhulukazi imishini emikhulu yesigaba esisodwa, akukwazi ukusatshalaliswa ngendlela elinganiselayo ngokwemithwalo yezigaba ezintathu.

(4) Ukusetshenziswa kwamandla kwesikhashana kanye nokwenyuka kwamandla okusetshenziswa kwesizini, njengehlobo, ubusika, amaholide, ukwenyuka kokusetshenziswa kwamandla komsebenzisi ngamunye akuhambisani, okuholela ekungalinganini komthwalo wezigaba ezintathu.

III. Izindlela zokuthuthukisa

1. Izixazululo zokungalingani kwamandla kagesi kwesigaba sesithathu okubangelwa umthwalo ongalingani:

(1) Umthwalo ongalingani uhlakazwa ezindaweni ezahlukene zokuphakelwa kwamandla ukuze kuncishiswe inkinga yokungalingani okukhulu okubangelwa ukuxhumana okuphakathi.

(2) Indlela yokushintshanisa kanye nokulingana isetshenziswa ukwenza umthwalo ongalingani usatshalaliswe ngokufanele esigabeni ngasinye bese uzama ukuwenza ulingane.

(3) Khulisa umthamo we-short-circuit wendawo yokufinyelela umthwalo, njengokushintsha inethiwekhi noma ukuthuthukisa izinga le-voltage yokunikezwa kwamandla ukuze kuthuthukiswe ikhono lesistimu lokuthwala umthwalo ongalingani.

2. Qinisa ukuphathwa

(1) Hlela abasebenzi abakhethekile ukudweba idayagramu yenethiwekhi ye-transformer kanye nomdwebo wokusabalalisa umthwalo minyaka yonke, wenze idatha efanele njengenani labasebenzisi bakagesi esigabeni ngasinye kanye nemodeli yemitha kagesi ibe ithebula elilula nelilula ukulihlola, futhi uhlole ukuthi kukhona yini abasebenzisi abalahlekile noma abasha, kanye nokuvuselelwa ngesikhathi esifanele kuhlanganiswe nezinguquko zomthwalo.

(2) Nika umuntu one-clamp meter, bese wenza ukuhlolwa komthwalo okungenani kanye ngenyanga ukuhlola umthwalo wezigaba ezintathu ongalingani.

(3) Ngokusetshenziswa kwamandla okwesikhashana kanye nokusetshenziswa kwamandla kwesizini, abasebenzi bokuphatha kudingeka bajwayelane nesimo esiyisisekelo sabasebenzisi, izindawo zokufaka, izinguquko ekusetshenzisweni kwamandla, bese belungisa ngesikhathi esifanele ngokwesimo.

(4) Faka isicelo semishini emisha yesigaba esisodwa ukuze usebenzise ugesi, wenze umsebenzi omuhle wokusabalalisa amandla omthwalo, ngangokunokwenzeka ukuze usabalalise ngokulinganayo kwisekethe yesigaba sesithathu.

3. Lungisa umthwalo ongalingani wezigaba ezintathu ukuze ufinyelele "ibhalansi ezine"

"Ibhalansi ezine" ibhalansi yamaphuzu okulinganisa, ibhalansi yamagatsha, ibhalansi yemigqa eyinhloko kanye nebhalansi eseceleni ye-transformer ene-voltage ephansi.

Phakathi kwezilinganiso ezine, isihluthulelo iphuzu lokulinganisa kanye nebhalansi yamagatsha, ukusetshenziswa kukagesi okujwayelekile komsebenzisi kungasetshenziswa njengesisekelo sokulungiswa, ukusetshenziswa kukagesi kucishe kufane neklasi, ngokulandelana kulungiswe ngokulinganayo kwisigaba sesithathu.

4. Xhuma umugqa wezigaba ezintathu endaweni yokulayisha ngasikhathi sinye

Ukuze kutholakale ukulingana komthwalo wezigaba ezintathu, imigqa yezigaba ezintathu kufanele ifakwe endaweni yomthwalo ngesikhathi esifanayo ngoba ukulahlekelwa kunciphisa kakhulu lapho imigqa yezigaba ezintathu ifakwe endaweni yomthwalo ngesikhathi esifanayo.

Nweba indawo yokusatshalaliswa kohlelo lwezintambo ezintathu kanye nolwezintambo ezine ngangokunokwenzeka futhi unciphise ubude bomugqa omkhulu wokunikezwa kwamandla wesigaba esisodwa. Umugqa wokufinyelela kufanele wethulwe kusukela ezigabeni ze-u, V kanye ne-W esigxotsheni esifanayo ngangokunokwenzeka. Futhi umthwalo wamaqembu amathathu omugqa wesigaba esisodwa kufanele ulinganiswe ngangokunokwenzeka.

5. Yakha uhlelo lokuvuselela igridi kagesi ngendlela efanele

Ukuze kufezwe ibhalansi yomthwalo yezigaba ezintathu ngemva kokuguqulwa, kubalulekile ukuklama uhlelo lokuguqulwa kwenethiwekhi yamandla ngendlela efanele. Ngaphambi kokuklama, kubalulekile ukuqonda umthetho wokushintsha umthwalo kanye nokusatshalaliswa komthwalo, ukwenza uphenyo endaweni, ukwazi kahle ukusatshalaliswa komthwalo, bese udweba umdwebo wezintambo zokusatshalaliswa komthwalo.

Ukufakwa kwezintambo kufanele kwenziwe ngokuqinile ngokwesimiso sokulinganisela umthwalo wezigaba ezintathu, futhi izintambo zezigaba ezintathu kanye nezintambo ezine kufanele zingene esikhungweni ngasinye somthwalo esibalulekile ngangokunokwenzeka.

Umthombo: Amafasitela Asebenza Ngogesi