Isiguquli esingu-480V asihlali sidinga ukungathathi hlangothi. Ukuthi ukungathathi hlangothi kuyadingeka yini kuncike ekucushweni kwamajika e-transformer, uhlobo lomthwalo ohlinzekwayo, indlela yokubeka phansi, kanye nomklamo wesistimu kagesi. Ezinhlelweni eziningi zezimboni, amandla angu-480V anikezwa umugqa ukuya kumugqa ngaphandle kokungathathi hlangothi. Kwezinye izinhlelo, ikakhulukazi ukusabalalisa okungu-480Y/277V, ukungathathi hlangothi kuyatholakala futhi kungase kudingelwe imithwalo engu-277V yomugqa ukuya kokumaphakathi.
Yingakho impendulo ingeke yehliswe ibe nguyebo noma cha. Isiguquli esingu-480V singasebenza ngokuphelele ngaphandle kokungathathi hlangothi uma sihlinzeka kuphela ngemishini yolayini ukuya kumugqa ongu-480V kuphela. Kodwa uma isistimu kufanele inikeze imithwalo yomugqa ukuya maphakathi, amasekhethi okulawula, ukukhanyisa, noma imishini ye-voltage exubile, i-transformer ingase idinge iphoyinti elingathathi hlangothi eliklanyelwe ekujikelezeni kwesibili.
Okwabathengi nonjiniyela abakhetha a I-480v i-single phase transformer, umbuzo obalulekile awukona nje ukukala i-voltage. Futhi ukuthi i-transformer izoxhunywa kanjani, yiziphi izinto ezisetshenziswayo, nokuthi uhlelo lwesibili ludinga umqhubi osekelwe phansi.
Kuyini Ukungathathi hlangothi ohlelweni lwe-Transformer?
I-neutral iyi-conductor exhunywe endaweni engathathi hlangothi ye-transformer winding. Ezinhlelweni eziningi ze-AC, leli phuzu elingathathi hlangothi lisekelwe phansi futhi lisetshenziswa njengendlela yokubuyisela yamanje engalinganiseli emithwalweni ephakathi kuya kokumaphakathi.
Ukungathathi hlangothi akufani ne-conductor yokumisa phansi. I-neutral ivamise ukuba i-conductor ephethe yamanje uma imithwalo esuka kulayini iye kokumaphakathi ixhunyiwe. I-conductor ye-grounding conductor iyikhondatha yezokuphepha ehloselwe ukuhlinzeka ngendlela yephutha elivimbele kakhulu futhi isize izisetshenziswa zokuvikela zisebenze ngesikhathi sephutha.
Ukudideka nokungathathi hlangothi kungadala izingozi ezinkulu zokuphepha. Ukufakwa kwe-transformer kufanele kuhlale kuklanywe futhi kuhlolwe ngabasebenzi bakagesi abaqeqeshiwe ngokuya ngamakhodi asebenzayo kanye nezidingo zendawo.
Lapho i-480V Transformer Ingadingi Ukungathathi hlangothi
Isiguquli esingu-480V ngokuvamile asidingi ukungathathi hlangothi lapho sinikeza kuphela imithwalo engu-480V yomugqa ukuya kumugqa.
Izibonelo ezijwayelekile zifaka:
- Izinjini zezigaba ezintathu
- Imishini yezimboni
- Amaphampu nama-compressor
- Imishini ye-HVAC
- Imishini yokushisela
- Imigqa ethile yokukhiqiza
- Amaphaneli okulawula angu-480V adizayinelwe okokufaka komugqa kuya kumugqa
Kusistimu ye-delta yezigaba ezintathu engu-480V, kungase kungabi khona indawo emaphakathi etholakalayo. Imithwalo ixhunywe phakathi kwabaqhubi besigaba, futhi isistimu ingasebenza ngaphandle komqhubi ongathathi hlangothi.
Ngokufanayo, a I-480v i-single phase transformer ingase ixhunywe kumakhondaktha ezigaba ezimbili ukuze inikeze ukunikezwa kwesigaba esisodwa esingu-480V. Uma umthwalo udinga kuphela izintambo ezimbili ku-480V, okungathathi hlangothi kungase kungadingeki. Kodwa-ke, ukubeka phansi kanye nokuvikelwa kwe-overcurrent kuhlala kuyizingxenye ezibalulekile zokufakwa okuphephile.
Lapho i-480V Transformer Idinga Ukungathathi hlangothi
Ukungathathi hlangothi kungase kudingeke lapho i-transformer yesibili iklanyelwe ukunikeza kokubili ama-voltages womugqa ukuya kumugqa kanye nomugqa kuya kokumaphakathi.
Isibonelo esivamile uhlelo lwe-480Y/277V. Kulokhu kumiswa, i-voltage yomugqa kuya kumugqa ingu-480V, kanti i-voltage esuka kumugqa ukuya kuhlangothi ingu-277V. Iphoyinti elingathathi hlangothi lesibili le-wye livumela imithwalo engu-277V ukuthi ixhunywe kusukela esigabeni ukuya kokungathathi hlangothi.
Ukungathathi hlangothi kungadingeka kulokhu:
- 277V ukukhanyisa amasekhethi
- Amasekhethi okulawula umugqa ukuya kokumaphakathi
- Amaphaneli okusabalalisa amandla kagesi ahlanganisiwe
- Amasistimu kagesi okwakha athile
- Izisetshenziswa ezidinga umqhubi ophansi
- Amasistimu anomthwalo wesigaba esisodwa axhunywe esigabeni ukuya kokumaphakathi
Uma le mithwalo ikhona, i-transformer kanye nesistimu yokusabalalisa kufanele ihlanganise umqhubi ongathathi hlangothi olingana kahle futhi ohlonziwe.
480V Delta vs. 480Y/277V Wye
I-transformer winding configuration ingenye yezinto ezibaluleke kakhulu.
480V Delta
I-480V delta transformer yesibili inamakhondatha ezigaba ezintathu axhunywe kulungiselelo lokumayoko elingunxantathu. Amasistimu ajwayelekile e-delta awanikezeli ngokungathathi hlangothi ngaphandle kwalapho kusetshenziswa ilungiselelo eliyisisekelo elikhethekile noma elithepha maphakathi.
Izinhlelo ze-Delta zivamile ekusabalaliseni amandla ezimboni lapho imithwalo eyinhloko ingamamotho nemishini esindayo.
480Y/277V Wye
I-480Y/277V wye transformer yesibili inamakhandatha ezigaba ezintathu kanye nephoyinti elimaphakathi. I-voltage phakathi kwanoma yimaphi ama-conductor ezigaba ezimbili ingu-480V. I-voltage esuka kunoma iyiphi i-conductor yesigaba iye kokungathathi hlangothi ingu-277V.
Lokhu kumisa kuvamile ezakhiweni zezentengiselwano nezimboni ngoba kungasebenza kokubili okokusebenza okungu-480V kanye nokukhanyisa okungu-277V noma ukulawula imithwalo.
A I-480v i-single phase transformer ingaklanywa ngezinhloso ezahlukene. Amanye amayunithi anesisekelo esingu-480V nesesibili se-voltage ephansi, njenge-240V, 208V, 120V, noma 24V. Abanye bangase babe nesesibili esingu-480V semishini yesigaba esisodwa.
Ukuthi idinga ukungathathi hlangothi kuncike ekwakhiweni okusongayo kwesibili.
Ngokwesibonelo:
- I-480V enezintambo ezimbili yesibili ingase ingadingi okungathathi hlangothi.
- I-120/240V yesibili ethenjwe maphakathi ifaka phakathi okuphakathi nendawo.
- Isiguquli esilawulayo singase sibe nohlangothi olulodwa olusekelwe kuye ngomklamo wesistimu.
- I-isolation transformer ingaba nesesibili esuselwe ngokuhlukile okufanele isekelwe ngokwemithetho esebenzayo.
Lapho ukhetha i-transformer, abathengi kufanele babuyekeze i-nameplate, umdwebo wezintambo, izimpawu zetheminali, kanye nemibhalo yomkhiqizi ngokucophelela.
Ukungathathi hlangothi, Ukubeka phansi, kanye Nokubambisana Kwehlukene
Umthombo omkhulu wokudideka umehluko phakathi kokungathathi hlangothi, ukubeka phansi, nokubopha.
Ukungathathi hlangothi kusetshenziselwa ukubuyisela okuvamile kwamanje ezinhlelweni ezithile zesekethe. I-Grounding ixhuma isistimu noma izinto zokusebenza emhlabeni noma isistimu ye-electrode ephansi. I-Bonding ixhuma izingxenye eziqhutshwayo ndawonye ukuze i-fault current ibe nendlela ethembekile.
Isiguquli esingu-480V singase singadingi ukungathathi hlangothi ukuze sisebenze okuvamile, kodwa sisadinga ukubekwa phansi okufanele nokubopha. Ama-transformer ezivalekile, imigwaqo yomjaho, amaphaneli, kanye nezinto zokusebenza ezixhumene kufanele ziboshwe futhi zisekelwe phansi ngokwezidingo zokufakwa.
Lo mehluko ubalulekile ngoba ukusebenzisa ikhondukta ephansi njengokungathathi hlangothi akuphephile futhi ngokuvamile akuvunyelwe kumasistimu ezintambo ezivamile.
Imibuzo Ongayibuza Ngaphambi Kokukhetha I-480V Transformer
Ngaphambi kokuthenga noma ukufaka i-transformer, cacisa lawa maphuzu:
- Ingabe uhlelo luyisigaba esisodwa noma isigaba sesithathu?
- Ingabe i-voltage eyinhloko ye-transformer ingu-480V?
- Iyiphi i-voltage yesibili edingekayo?
- Ingabe imithwalo isuka kulayini ukuya kumugqa noma iphakathi nendawo?
- Ingabe isifunda esingu-277V siyadingeka?
- Ingabe okokusebenza kudinga ikhondatha engathathi hlangothi?
- Ingabe i-delta ye-transformer, i-wye, noma i-centre-tapped?
- Ingabe i-transformer iyisistimu esuselwe ngokuhlukile?
- Iyiphi indlela yokubeka phansi edingekayo?
- Iyiphi ikhodi yendawo kagesi esebenzayo?
Okwe I-480v i-single phase transformer, kubaluleke kakhulu ukuqinisekisa i-wiring edingekayo yokufaka nokuphumayo. I-transformer ingase ibe nesilinganiso se-voltage esilungile kodwa ilungiselelo elingalungile lohlelo oluhlosiwe.
Amaphutha Avamile Okufanele Uwagweme
Iphutha elilodwa elivamile ukucabanga ukuthi yonke isistimu ye-480V inokungathathi hlangothi. Amasistimu amaningi wezimboni angu-480V angamasistimu anezintambo ezintathu angenakho ikhondatha engathathi hlangothi.
Elinye iphutha wukucabanga ukuthi umhlabathi ungangena esikhundleni sokungathathi hlangothi. Ngeke. I-conductor ephansi yezinto zokusebenza akufanele isetshenziswe njengomqhubi ophethe wamanje ojwayelekile.
Iphutha lesithathu ukukhetha i-transformer esekelwe kuphela ku-voltage nesilinganiso se-kVA. Ukucushwa kwama-winding, ikilasi le-insulation, uhlobo lwesivalo, ukukhuphuka kwezinga lokushisa, imvamisa, isigaba, nokuhlelwa kwetheminali konke kungathinta ukuthi i-transformer ifanelekile yini.
Isiphetho
Isiguquli esingu-480V asidingi ngokuzenzakalelayo ukungathathi hlangothi. Uma i-transformer inikezela ngemithwalo engu-480V kuphela yomugqa ukuya kumugqa, ukungathathi hlangothi kungase kungadingeki. Uma isistimu ihlinzeka ngemithwalo ephakathi komugqa ukuya-maphakathi, efana nokukhanyisa okungu-277V noma amasekhethi okulawula athile, khona-ke ukungathathi hlangothi kuyadingeka ngokuvamile.
Indlela ephephe kunazo zonke yokuphendula umbuzo ukubheka ukucushwa kwamawindi e-transformer kanye nezidingo zomthwalo oxhunyiwe. Amasistimu e-Delta ngokuvamile asebenza ngaphandle kokungathathi hlangothi, kuyilapho amasistimu e-480Y/277V wye ehlanganisa indawo emaphakathi. A I-480v i-single phase transformer ingadinga noma ingadingi ukungathathi hlangothi kuye ngomklamo wayo wesibili kanye nokusetshenziswa kwayo.
Ukuze uthole ulwazi lomkhiqizo we-transformer, vakashela JS Ningi.
