I-transformer ye-480V ayisoloko ifuna ukungathathi hlangothi. Ingaba ukungathathi hlangothi kuyadingeka kuxhomekeke kwi-transformer winding configuration, uhlobo lomthwalo onikezelwayo, indlela yokumisa, kunye noyilo lwenkqubo yombane. Kwiinkqubo ezininzi zoshishino, amandla e-480V anikezelwa ngomgca-kumgca ngaphandle kokungathathi hlangothi. Kwezinye iinkqubo, ngokukodwa ukuhanjiswa kwe-480Y / 277V, ukungathathi hlangothi kufumaneka kwaye kunokufuneka kwi-277V imithwalo ye-line-to-neutral.
Kungenxa yoko le nto impendulo ayinakuncitshiswa ibe nguewe okanye uhayi olula. Isiguquli se-480V sinokusebenza ngokugqibeleleyo ngaphandle kokungathathi hlangothi ukuba sibonelela ngezixhobo ze-480V zomgca ukuya kumgca. Kodwa ukuba inkqubo kufuneka inikeze imithwalo ye-line-to-neutral, iisekethe zokulawula, ukukhanya, okanye izixhobo ezixubeneyo ze-voltage, i-transformer inokufuna indawo engathathi hlangothi eyenzelwe ukuphefumula kwesibini.
Kubathengi kunye neenjineli ezikhetha a I-480v isiguquli sesigaba esinye, umbuzo obalulekileyo awukho kuphela ukulinganisa kwamandla ombane. Kwakhona indlela i-transformer iya kudibaniswa ngayo, yeyiphi isixhobo esiya kuyenza, kwaye ingaba inkqubo yesibini ifuna umqhubi ophantsi.
Yintoni ukungathathi cala kwiNkqubo yoTshintsho?
Ukungathathi hlangothi ngumqhubi oxhunywe kwindawo engathathi hlangothi ye-transformer winding. Kwiinkqubo ezininzi ze-AC, le ngongoma engathathi hlangothi isekelwe kwaye isetyenziswe njengendlela yokubuyisela ekhoyo ngoku engalinganiyo kwimithwalo ye-line-neutral.
Ukungathathi hlangothi akufani nomqhubi wesixhobo sokumisa. Ukungathathi hlangothi ngokuqhelekileyo ngumqhubi ophetheyo ngoku xa imithwalo ye-line-to-neutral ixhunyiwe. Umqhubi wesixhobo sokumisa izixhobo ngumqhubi wokhuseleko ojoliswe ukubonelela ngempazamo ephantsi kunye nokunceda izixhobo zokukhusela zisebenze ngexesha lempazamo.
Ukubhidanisa ukungathathi hlangothi kunye nomhlaba kunokudala ingozi enkulu yokhuseleko. Ufakelo lwe-transformer kufuneka luhlale luyilwe kwaye luhlolwe ngabasebenzi bombane abaqeqeshiweyo ngokweekhowudi ezifanelekileyo kunye neemfuno zendawo.
Xa i-480V Transformer ayifuni ukungathathi hlangothi
I-480V transformer ngokuqhelekileyo ayifuni ukungathathi hlangothi xa inikezela kuphela imithwalo ye-480V yomgca ukuya kumgca.
Imizekelo eqhelekileyo ibandakanya:
- Iinjini zenqanaba lesithathu
- Oomatshini bemizi-mveliso
- Iimpompo kunye ne-compressors
- Izixhobo zeHVAC
- Izixhobo zokuwelda
- Imigca ethile yemveliso
- Iiphaneli zokulawula ze-480V ezenzelwe igalelo lomgca ukuya kumgca
Kwinqanaba lesithathu lenkqubo ye-delta ye-480V, akunakubakho indawo engathathi hlangothi ekhoyo. Imithwalo ixhunyiwe phakathi kwabaqhubi besigaba, kwaye inkqubo inokusebenza ngaphandle komqhubi ongathathi hlangothi.
Ngokufanayo, a I-480v isiguquli sesigaba esinye inokudityaniswa kwii-conductor zesigaba ezibini ukubonelela nge-480V yesigaba esisodwa sobonelelo. Ukuba umthwalo ufuna kuphela iingcingo ezimbini kwi-480V, ukungathathi hlangothi kungadingeka. Nangona kunjalo, ukugcinwa komhlaba kunye nokukhuselwa ngokugqithisileyo kuhlala kuyinxalenye ebalulekileyo yofakelo olukhuselekileyo.
Xa i-480V Transformer ifuna ukungathathi hlangothi
Ukungathathi hlangothi kunokufuneka xa i-transformer yesibini yenzelwe ukubonelela zombini i-line-line kunye ne-line-neutral voltages.
Umzekelo oqhelekileyo yinkqubo ye-480Y / 277V. Kulo hlengahlengiso, i-voltage ye-line-line-line yi-480V, ngelixa i-voltage ye-line-neutral i-277V. Indawo engathathi hlangothi ye-wye yesibini ivumela imithwalo ye-277V ukuba idibaniswe ukusuka kwisigaba ukuya kwi-neutral.
Ukungathathi hlangothi kunokufuneka:
- Iisekethe zokukhanyisa ze-277V
- Iisekethe zolawulo lwe-line-to-neutral
- Iiphaneli zokusabalalisa i-voltage edibeneyo
- Iinkqubo ezithile zombane zokwakha
- Izixhobo ezifuna umqhubi ophantsi
- Iinkqubo ezinomthwalo wesigaba esisodwa esidityaniswe ukusuka kwisigaba ukuya kokungathathi hlangothi
Ukuba le mithwalo ikhona, i-transformer kunye nenkqubo yokusabalalisa kufuneka ibandakanye umqhubi ongathathi hlangothi ngokufanelekileyo kunye nochongiweyo.
480V Delta vs. 480Y / 277V Wye
Ubume be-transformer winding configuration yenye yezona zinto zibalulekileyo.
480V Delta
I-480V ye-delta ye-transformer yesibini inee-conductor zezigaba ezithathu ezidityaniswe kulungiselelo lwamajiko angamanxantathu. Iinkqubo ze-delta eziqhelekileyo aziboneleli ngokungathathi hlangothi ngaphandle kokuba kusetyenziswe isiseko esikhethekileyo okanye ilungiselelo lokucofa kwiziko.
Iinkqubo ze-Delta zixhaphake ekuhanjisweni kwamandla kwimizi-mveliso apho imithwalo ephambili iimoto kunye nezixhobo ezinzima.
480Y/277V Wye
I-480Y / 277V i-wye ye-transformer yesibini inee-conductor zesigaba esithathu kunye nendawo engathathi hlangothi. Umbane phakathi kwazo naziphi na ii-conductor zesigaba ezibini yi-480V. Umbane ovela kuyo nayiphi na i-conductor yesigaba ukuya kwi-neutral yi-277V.
Olu lungelelwaniso luqhelekileyo kwizakhiwo zorhwebo kunye nezoshishino kuba zinokusebenza zombini izixhobo ze-480V kunye nokukhanya kwe-277V okanye ukulawula imithwalo.
A I-480v isiguquli sesigaba esinye ingenziwa ngeenjongo ezahlukeneyo. Ezinye iiyunithi zineeprayimari ze-480V kunye nesekondari ye-voltage ephantsi, njenge-240V, i-208V, i-120V, okanye i-24V. Abanye banokuba nesekondari ye-480V yezixhobo zesigaba esinye.
Ingaba ifuna ukungathathi hlangothi kuxhomekeke kuyilo lwesibini lwamajiko.
Umzekelo:
- I-480V ye-second-wire wire isenokungadingi cala.
- I-120 / 240V ye-second-tapped center iquka ukungathathi hlangothi.
- Isiguquli solawulo sinokuba necala elinye elisekelwe ngokuxhomekeke kuyilo lwenkqubo.
- I-transformer yodwa inokuba nesibini esivela ngokwahlukileyo ekufuneka sisekelwe ngokwemigaqo esebenzayo.
Xa ukhetha i-transformer, abathengi kufuneka baphonononge i-nameplate, idayagram yocingo, uphawu lwetheminali, kunye namaxwebhu omenzi ngononophelo.
Ukungathathi hlangothi, ukuNcisa, kunye nokuManyana kwahlukile
Umthombo omkhulu wokubhideka ngumahluko phakathi kokungathathi hlangothi, ukumisa, kunye nokudibanisa.
Ukungathathi hlangothi kusetyenziselwa imbuyekezo yangoku eqhelekileyo kumalungiselelo athile esekethe. I-Grounding idibanisa inkqubo okanye izixhobo emhlabeni okanye i-electrode system. I-Bonding idibanisa iindawo zokuqhuba kunye ukuze i-fault current ibe nendlela ethembekileyo.
I-transformer ye-480V ayinakudinga ukungathathi hlangothi ekusebenzeni okuqhelekileyo, kodwa isafuna isiseko esifanelekileyo kunye nokudibanisa. Iindawo ezivaliweyo zeTransformer, imidyarho, iiphaneli, kunye nezixhobo eziqhagamshelweyo kufuneka zibotshwe kwaye zibekwe phantsi ngokweemfuno zofakelo.
Lo mahluko ubalulekile kuba ukusebenzisa i-conductor yokumisa njengento engathathi hlangothi akukhuselekanga kwaye akuvumelekanga ngokubanzi kwiinkqubo zocingo eziqhelekileyo.
Imibuzo omawuyibuze phambi kokukhetha i-480V Transformer
Ngaphambi kokuba uthenge okanye ufake i-transformer, cacisa la manqaku:
- Ngaba inkqubo inesigaba esinye okanye inqanaba lesithathu?
- Ngaba i-voltage engundoqo ye-transformer yi-480V?
- Ngawaphi amandla ombane wesibini afunekayo?
- Ngaba imithwalo iya kumgca ukuya kumgca okanye umgca-ukuya-phakathi?
- Ngaba isekethe ye-277V iyafuneka?
- Ngaba isixhobo sifuna umqhubi ongathathi hlangothi?
- Ngaba i-delta ye-transformer, i-wye, okanye i-central-tapped?
- Ngaba i-transformer yinkqubo eyahlukileyo?
- Yeyiphi indlela yokumisa efunekayo?
- Yeyiphi ikhowudi yombane yasekuhlaleni esebenzayo?
Ye I-480v isiguquli sesigaba esinye, kubaluleke kakhulu ukuba uqinisekise igalelo elifunekayo kunye ne-output wiring. Isiguquli sinokuba nomlinganiselo ochanekileyo wombane kodwa ilungiselelo lokujija elingalunganga losetyenziso olucetywayo.
Iimpazamo Eziqhelekileyo Emaziphephe
Impazamo enye eqhelekileyo kukucinga ukuba yonke inkqubo ye-480V inokungathathi hlangothi. Iinkqubo ezininzi ze-480V zoshishino ziinkqubo zocingo ezintathu ezingenakho umqhubi ongathathi hlangothi.
Enye impazamo kukucinga ukuba umhlaba unokuthatha indawo yokungathathi hlangothi. Ayinako. I-conductor yokumisa izixhobo akufanele isetyenziswe njengomqhubi oqhelekileyo ophethe ngoku.
Impazamo yesithathu kukukhetha i-transformer esekelwe kuphela kumbane kunye nokulinganisa kwe-kVA. Ubume bomoya, iklasi yokugquma, uhlobo lwe-enclosure, ukunyuka kweqondo lokushisa, ukuphindaphinda, isigaba, kunye nokulungiswa kwe-terminal kunokuchaphazela ukuba i-transformer ifanelekile.
Ukuqukumbela
I-transformer ye-480V ayifuni ngokuzenzekelayo ukungathathi hlangothi. Ukuba i-transformer inikezela kuphela imithwalo ye-480V yomgca ukuya kumgca, ukungathathi hlangothi kungadingeka. Ukuba isixokelelwano sibonelela ngemithwalo yomgca-ukuya-phakathi, njengokukhanya kwe-277V okanye iisekethe ezithile zolawulo, ngoko ke ukungathathi hlangothi kuyafuneka ngokuqhelekileyo.
Indlela ekhuselekileyo yokuphendula umbuzo kukujonga ukucwangciswa kwe-transformer winding kunye neemfuno zomthwalo odibeneyo. Iinkqubo zeDelta zihlala zisebenza ngaphandle kokungathathi hlangothi, ngelixa iinkqubo ze-480Y / 277V wye ziquka indawo engathathi hlangothi. A I-480v isiguquli sesigaba esinye inokufuna okanye ayifuni ukungathathi hlangothi ngokuxhomekeke kuyilo lwesibini kunye nokusetyenziswa kwayo.
Ngolwazi lwemveliso ye-transformer, tyelela JS Ningyi.
