Umgaqo wokusebenza ufana naloo nto ye-transformer, kwaye isakhiwo esisisiseko sisisiseko sentsimbi kunye ne-primary and second windings. Uphawu kukuba umthamo uncinci kwaye uhambelana ngokuthe gqolo, kwaye usondele kwimeko yokungabikho komthwalo ngexesha lokusebenza okuqhelekileyo.
I-impedance ye-voltage transformer ngokwayo incinci kakhulu. Emva kokuba icala lesibini lifutshane, i-current iya kwanda ngokukhawuleza kwaye i-coil iya kutshiswa. Ngenxa yesi sizathu, icala eliphambili le-voltage transformer liqhagamshelwe kunye ne-fuse, kwaye icala lesibini lisekelwe ngokuthembekileyo ukukhusela iingozi zomntu kunye nezixhobo ukuba zenzeke xa i-insulation yecala eliphambili kunye neyesibini lonakalisiwe kwaye icala lesibini linamandla aphezulu umhlaba.
Iziguquli ze-voltage zokulinganisa ngokubanzi zenziwe ngesigaba esinye sesakhiwo sekhoyili ephindwe kabini, kwaye amandla ombane aphambili ngumbane oza kulinganiswa (njengombane wombane wenkqubo yamandla), onokusetyenziswa kwisigaba esinye, okanye ezimbini zinokulinganiswa. ukudityaniswa kwimilo ye-VV kwisigaba esithathu. sebenzisa. Iziguquli zombane ezisetyenziswa kwilabhoratri zihlala zitephu kaninzi kwicala eliphambili ukuhlangabezana neemfuno zokulinganisa umbane ohlukeneyo. I-voltage transformer yesiseko sokukhusela nayo ine-coil yesithathu, ebizwa ngokuba yi-coil-coil voltage transformer
I-coil yesigaba sesithathu idibaniswe kunxantathu evulekileyo, kwaye iziphelo ezimbini ezihamba phambili zonxantathu ovulekileyo zidibene ne-coil ye-voltage ye-relay yokukhusela umhlaba.
Ngethuba lokusebenza okuqhelekileyo, i-voltage yesigaba sesithathu senkqubo yamandla i-symmetrical, kwaye isimbuku sesigaba sesithathu samandla ombane we-electromotive kwikhoyili yesithathu ngu-zero. Emva kokuba isiseko sesigaba esisodwa senzeke, indawo engathathi hlangothi iya kususwa, kwaye i-voltage ye-zero-sequence iya kubonakala phakathi kwee-terminals ze-triangle evulekileyo ukwenza i-relay isenzo, ngaloo ndlela ikhusela inkqubo yamandla.
Xa i-voltage ye-zero-sequence ibonakala kwikhoyili, i-zero-sequence magnetic flux iya kubonakala kwi-core yentsimbi ehambelanayo. Ukuza kuthi ga ngoku, lo mguquli wombane wesigaba esithathu wamkela isiseko sedyokhwe esecaleni (xa i-10KV nangaphantsi) okanye i-voltage yesigaba esinye sesithathu. Kulolu hlobo lwe-transformer, ukuchaneka kwekhoyili yesithathu ayiphezulu, kodwa ifuna iimpawu ezithile zokugqithisa (oko kukuthi, xa umbane oyintloko unyuka, ubuninzi be-magnetic flux kumbindi wentsimbi nawo kwandisa ngokuphindaphindiweyo okuhambelanayo ngaphandle komonakalo).
Umsebenzi we-voltage transformer: ukuguqula i-voltage ephezulu ibe ngumbane oqhelekileyo wesibini we-100V okanye ungaphantsi ngokulingana nokusetyenziswa kokukhusela, ukulinganisa kunye nezixhobo zokusebenza. Ngexesha elifanayo, ukusetyenziswa kwe-voltage transformers kunokwahlula amandla aphezulu kubasebenzi bombane. Nangona i-voltage transformer ikwasisixhobo esisebenza ngokomgaqo wokungeniswa kwe-electromagnetic, ubudlelwane bayo be-electromagnetic structure buchasene ngokuthe ngqo nolo lwe-transformer yangoku. Isiphaluka sesibini se-voltage transformer yi-high-impedance circuit, kunye nobukhulu bombane wesibini bunqunywe yi-impedance yesiphaluka.
Xa i-impedance yomthwalo wesibini iyancipha, ukunyuka kwangoku kwesibini, ukwenzela ukuba i-primary current inyuke ngokuzenzekelayo ngecandelo ukwanelisa ubudlelwane be-electromagnetic balance phakathi kwamacala aphambili kunye nesibini. Kunokuthiwa i-voltage transformer yi-transformer ekhethekileyo enesakhiwo esilinganiselweyo kunye nefom yokusetyenziswa. Ukubeka nje, yinto "yokubona".
Ixesha lokuposa: May-04-2022