Amandla Ezigaba Ezi-3: Ukucushwa kwe-Delta vs WYE
Hlola umehluko phakathi kokucushwa kwe-delta ne-wye ezinhlelweni zamandla zesigaba esi-3 kanye nokusetshenziswa kwazo.
Funda kabanzi
Ama-transformer ohlobo olomile angashisa ngokweqile ngenxa yezici eziningana, okuhlanganisa ukulayisha ngokweqile, ukuphefumula okungekuhle, kanye namazinga okushisa aphezulu. Izinkinga zokugoba, ukufudumala okuwohlokayo, kanye nomonakalo womshini nakho kunegalelo ekukhiqizeni ukushisa ngokweqile.

Ukukhethwa kwesilinganiso somthwalo okungalungile kanye nokulayisha ngokweqile kubangela ukushisa ngokweqile kwe-transformer yohlobo olomile. I-transformer iyahluleka ukubhekana nogesi oweqile, okwenza ukushisa okwandisiwe kanye nomonakalo ongaba khona.
Ukulayisha ngokweqile kwenzeka lapho kusunduzwa njalo i-transformer ngaphezu kwamandla ayo alinganiselwe . Lokhu kwenzeka ngenxa yezidingo zamandla ezingalindelekile noma ukwanda komthwalo kancane kancane ngokuhamba kwesikhathi. Amaza aphezulu akhiqiza ukushisa okuningi kunalokho i-transformer engakuqeda.
Ukungena komoya nokupholisa okunganele kubeka engcupheni enkulu yokushisa ngokweqile kwe-transformer yohlobo olomile . Ukugeleza komoya okubi okuzungeze i-transformer kuvimbela ukushabalaliswa kokushisa okuphumelelayo, okuholela ekwandeni kwezinga lokushisa ngale kwamazinga okusebenza aphephile. Le nkinga ivame ukwenzeka ezindaweni ezivalekile noma ezindaweni ezinokujikeleza komoya okulinganiselwe.
Ama-transformer ohlobo olomile asengozini yokushisa okuphezulu okungaphezu kwemingcele yomklamo. Lawa ma-transformer ngokuvamile asebenza ngaphakathi kwamazinga athile okushisa, ngokuvamile afinyelela ku-40°C. Izindawo ezidlula lo mkhawulo zicindezela imishini ngaphezu kwamandla ayo.
Izinto zokuvikela ezisezingeni eliphansi noma ezigugayo zibangela ukushisa ngokweqile kwe-transformer yohlobo olomile. Ukuvikela okonakele noma okwenziwe ngendlela engafanele kulahlekelwa amandla alo okuvimbela ukudluliselwa kokushisa phakathi kokugoba, okubeka engcupheni ukusebenza kahle kokupholisa kanye nokwenyuka kwamazinga okushisa.
Izinkinga zokugoba zibangela izinkinga ezinkulu zokushisa ngokweqile kuma -transformer ohlobo olomile . Amasekethe amafushane adala ukugeleza kwamanje okweqile kanye nokushisa kwendawo ngenxa yokuphazamiseka kokushisa noma umonakalo ongokwenyama.
Imithwalo engalingani ibangela ukushisa okungalingani kuzo zonke izimbobo lapho isigaba esisodwa siphethe amandla amaningi kunezinye. Lokhu kungalingani kugcizelela i-transformer futhi kunciphisa ukusebenza kahle.
Ama-Harmonic avela emithwalweni engeyona eqondile njengemishini kagesi akhiqiza ukushisa okwengeziwe kuma-windings e-transformer. Lawa ma-waveform aphikisiwe andisa ukulahlekelwa kwamanje kanye nomgogodla.
Ukufakwa okungalungile kanye nokugcinwa okunganele kubangela ukushisa okukhulu kuma-transformer ohlobo olomile. Ukungena komoya ngokwanele ngesikhathi sokufakwa kuholela ekukhuleni kokushisa okusheshayo. Ukubeka ama-transformer eduze kakhulu nezindonga noma imishini kuvimbela ukuhamba komoya, okuholela ekukhuphukeni kwezinga lokushisa.
Ukungena komswakama kanye nokungcola kusongela ama-transformer ohlobo olomile, okubangela ukushisa ngokweqile kanye nokwehluleka okungenzeka. Umswakama ungena ngemifantu, izivalo ezingasebenzi kahle, noma ngesikhathi sokulungiswa, okuphazamisa ubuqotho bokufudumeza. Ukuqongelela kwamanzi kunciphisa amandla e-dielectric futhi kwandisa ukuhanjiswa kukagesi, okuholela ekukhishweni okuyingxenye kanye nezindawo ezishisayo.
Uthuli, ukungcola, kanye nokungcola kwezimboni kuhlala ezindaweni ezigoqekayo kanye nasezindaweni ezipholile, kwakha ungqimba oluvikela ukushisa oluvimbela ukushabalaliswa kokushisa. Lokhu kuphakamisa izinga lokushisa le-transformer, okungenzeka kudlule imikhawulo yomklamo. Izinto ezingcolisayo eziqhuba umoya zidala izindlela zamanje ezingafuneki, okwenza izinkinga zokushisa ngokweqile zibe zimbi kakhulu.
Umonakalo wemishini kanye nokuxhumeka okuxekethile kuyizimbangela eziyinhloko zokushisa ngokweqile kwe-transformer yohlobo olomile. Ukuthuthwa, ukufakwa, noma ukusebenza kungaholela ekulimaleni kwemishini, okuholela ekungalungini kahle kwe-core lamination noma ukufuduka kokugoba. Lezi zinkinga zidala ukushisa kwendawo futhi zinciphise ukusebenza kahle kokupholisa.
Ukuxhumeka okuxegayo kwandisa ukumelana kukagesi ezindaweni zokuxhuma, okudala ukushisa okweqile. Amabhulokhi etheminali, okushintsha ompompi, kanye nokuxhumeka kwe-bushing kuthambekele kule nkinga. Ukujikeleza kokushisa kanye nokudlidliza kungakhulula ukuxhumana ngokuhamba kwesikhathi.

Ukwenyuka kwezinga lokushisa okungavamile kuma-transformer kudlula amanani alinganisiwe ashiwo abakhiqizi. Lawa manani abonisa ukwenyuka kwezinga lokushisa okuphezulu okuvunyelwe ngaphezu kwezimo ezizungezile. Qhathanisa izinga lokushisa lamanje le-transformer nemikhawulo yalo ecacisiwe ukuze uthole ukushisa ngokweqile.
Ama-transformer ohlobo olomile akhiqiza umsindo ophansi ngesikhathi sokusebenza okuvamile. Imisindo engavamile noma eyeqile ingabonisa izinkinga zokushisa ngokweqile. Lalela imisindo ekhala kakhulu, evungazelayo, noma edlidlizayo. Lokhu kungase kusikisele izingxenye zangaphakathi ezikhululekile noma izinkinga zokugoqa. Imisindo engavamile ivame ukubangelwa amandla kazibuthe asebenza enkabeni noma ekugoqeni, okubangela ukudlidliza komunye nomunye noma ohlakeni lwe-transformer.
Ukudlidliza ngokweqile kanye nokuqhaqhazela kuma-transformer ohlobo olomile kubonisa izinkinga zokushisa ngokweqile. Ukunyakaza okungavamile noma ukuqhaqhazela kweyunithi ye-transformer kubonisa izinkinga ezinkulu zangaphakathi. Izingxenye zangaphakathi ezixegayo, njengezimbobo noma ama-core laminations, zivame ukubangela lokhu kudlidliza. Ama-bearings angalungile noma alimele kumafeni okupholisa nawo angafaka isandla ekudlidlizeni.
Umonakalo obonakalayo noma ukushintsha kombala wokushisa kubonisa ukushisa okukhulu okungenzeka kuma-transformer ohlobo olomile.
Bheka ukuthi kukhona yini okuphuzi, okunsundu, noma okushayo ezintweni zokuvikela, ikakhulukazi eduze kwama-coil nama-windings. Lokhu kushintsha kombala kusikisela ukuthi kuhlale isikhathi eside ekushiseni ngokweqile.
Hlola ukuthi akukho yini imifantu, ukuphuka, noma ukuqhekeka kwe-insulation. Umonakalo onjalo ulimaza amandla okugcina ukushisa kwe-transformer kanye nokuhlukanisa ugesi.
Hlola izindawo lapho ukuvikela kuncibilike khona noma kuphendukezelwe khona. Lezi yizimpawu ezicacile zokushisa ngokweqile. Iphunga elivuthayo noma intuthu ebonakalayo idinga ukuvalwa ngokushesha kwe-transformer kanye nokuhlolwa kochwepheshe.
Iphunga elivuthayo noma intuthu evela kuma-transformer ohlobo olomile kubonisa izinkinga ezinkulu zokushisa ngokweqile ezidinga isinyathelo esisheshayo. Iphunga elivuthayo lingase lifane nepulasitiki eshisiwe, irabha, noma izingxenye zikagesi. Ngisho nephunga elincane lidinga ukunakwa, njengoba lingakhula ngokushesha.
Intuthu ikhombisa ukushisa okukhulu noma umlilo ku-transformer. Ingase ibonakale njengezintambo ezincane noma ama-plume aminyene, kuye ngokuthi inkinga ingakanani. Uma uthola intuthu, vala i-transformer bese ususa indawo ngokushesha.

Ukushisa ngokweqile isikhathi eside kuma-transformer ohlobo olomile kusheshisa ukuguga nokuwohloka kokushisa. Ukushisa ngokweqile kuphula izinto zokushisa ngokushesha kunokuphila kwazo okuklanyelwe. Le nqubo yenza buthaka amandla e-dielectric okushisa, inciphise ikhono layo lokubekezelela ukucindezeleka kukagesi.
Ukufakwa komoya oshisayo kuyaphuka, kuyaqhekeka, futhi kulahlekelwa ukuguquguquka njengoba konakala. Ingozi yamaphutha kagesi, ama-short circuits, kanye nokwehluleka okukhulu iyanda. Ukufakwa komoya okushisa akukwazi ukuhlukanisa kahle ama-windings, okuholela ekuqhekekeni okungenzeka kanye nomonakalo owengeziwe. Ukusebenza kahle kwe-transformer kwehla njengoba ukuhanjiswa kokushisa kokufakwa komoya okushisa kwehla.
Ukusebenza kahle kwe-transformer kwehla njengoba amazinga okushisa enyuka kumayunithi ohlobo olomile. Ukushisa kubangela ukuthi i-core kanye ne-windings ziqhube ugesi ngendlela engaphumeleli kahle, okwandisa ukumelana nokushabalaliswa kwamandla. Lokhu kudala umjikelezo lapho ukulahlekelwa okuphezulu kudala ukushisa okwengeziwe, okunciphisa ukusebenza kahle kakhulu.
Umthamo wokukhipha amandla uyehla njengoba i-transformer ilwela ukugcina ukusebenza okulinganiselwe ngaphansi kwamazinga okushisa aphezulu. Ukulahlekelwa okwandayo kuholela ezindleleni zokusebenza eziphakeme ngenxa yamandla asetshenzisiwe. Amandla e-transformer okusingatha ukuguquguquka komthwalo ayancipha, okungenzeka kubangele ukuvalwa okuvamile noma ukwehla kokuthembeka ezinhlelweni zokusabalalisa amandla.
Ama-transformer ohlobo olomile abhekana nokushisa okweqile isikhathi eside aholela ekungasebenzini kwesikhathi okuhleliwe, okuphazamisa ukusebenza kanye nokukhiqiza. Lokhu kungasebenzi kuholela ekuphuthelweni kwezinsuku zokugcina, ukulahlekelwa kokukhiqiza, kanye nokunganeliseki kwamakhasimende.

Ukugeleza komoya okufanele kuvimbela ukushisa ngokweqile kwe-transformer yohlobo olomile. Qinisekisa ukuthi izinhlelo zokungenisa umoya aziphazamiseki futhi uhlanze izindawo ezizungezile ukungcola nemishini. Gwema ukuqoqa izinto noma ukubeka izinto ku-transformer ukuze ugcine ukushisa kushabalale.
Ukuqapha izinga lokushisa njalo kanye nokuthambekela kuvimbela ukushisa ngokweqile kwe-transformer yohlobo olomile. Hlela inqubo yokuhlola nokuqopha amazinga okushisa e-transformer ezindaweni ezahlukene. Sebenzisa i-infrared thermography ukuthola izindawo ezishisayo nokuhlonza izinkinga ezingaba khona. Gcina izingodo ezinemininingwane yokufundwa kwezinga lokushisa futhi uhlaziye izitayela ngokuhamba kwesikhathi. Le datha isiza ekuboneni ukwanda kancane kancane okubonisa izinkinga ezikhulayo.
Izinto zokwambathisa ezisezingeni eliphezulu, ezingamelani nokushisa zivimbela ukushisa ngokweqile kwe-transformer yohlobo olomile. Khetha izinto ezimelana nokushisa okuphezulu futhi zigcine izakhiwo zokwambathisa ngokuhamba kwesikhathi. Ukwambathisa okunokushisa okuphezulu kanye namandla e-dielectric, njenge-nomex, i-kapton, noma ama-compounds asekelwe ku-silicone athuthukile, kususa ukushisa ngempumelelo futhi kumelana nokuwohloka ngaphansi kokucindezeleka kokushisa.
Ukunakekelwa kokuvimbela kunciphisa ingozi yokushisa ngokweqile kwe-transformer yohlobo olomile.
Ukuphathwa komthwalo kuvimbela ukushisa ngokweqile kuma-transformer ohlobo olomile. Qapha imithwalo ye-transformer ukuqinisekisa ukuthi ihlala ngaphakathi komthamo olinganiselwe. Sabalalisa izidingo zamandla ngokulinganayo kuzo zonke izigaba. Faka ama-relay okulayisha ngokweqile ukuze unqamule ngokuzenzakalelayo ama-transformer adonsa ugesi oweqile.
Ukufakwa kahle kwesisekelo kuvikela ama-transformer ohlobo olomile ekushiseni ngokweqile.
Ukushisa ngokweqile kuthinta kabi ukusebenza kahle kwe-transformer kanye nokukhishwa kwamandla. Kunciphisa ukusebenza, kwandisa ukulahlekelwa kwamandla, futhi kungalimaza izingxenye zangaphakathi. Ukushisa ngokweqile isikhathi eside kungabangela ukwehla kokulawulwa kwamandla kagesi kanye nokwehla kwamandla kagesi jikelele.
Izici zemvelo ezibangela ukushisa ngokweqile kwe-transformer zifaka phakathi amazinga okushisa aphezulu, umoya ongemuhle, ukukhanya kwelanga okuqondile, kanye nezimo ezinothuli noma ezinomswakama. Lezi zici kufanele zicatshangelwe ngesikhathi sokufakwa nokugcinwa kwe-transformer ukuze kuvinjelwe izinkinga zokushisa ngokweqile.
Izindleko ezimaphakathi zokulungisa i-transformer yohlobo olomile eshisiwe kakhulu zisukela ku-$1,000 kuya ku-$20,000. Izindleko zangempela zincike kusayizi we-transformer, izinga lomonakalo, kanye namanani abasebenzi bendawo.
Ukugcinwa njalo kwama-transformer ohlobo olomile kufanele kwenziwe minyaka yonke noma ngokwezincomo zomkhiqizi. Ukuhlolwa kufanele kuhlolwe ukunqwabelana kothuli, ukuxhumeka okuxekethile, kanye nezimpawu zokushisa ngokweqile.