Indlela yokumisela i-polarity ye-transformer yangoku?

I-transformer yangoku (CT) sisixhobo esibalulekileyo sombane kwinkqubo yamandla.Inoxanduva lokuzahlula phakathi kweenkqubo zombane ophezulu kunye nophantsi kunye nokuguqulwa kwamandla ombane aphezulu ukuya kumbane ophantsi.Ingaba i-wiring ichanekile okanye ayikho ibaluleke kakhulu ekusebenzeni okuqhelekileyo kokukhusela, ukulinganisa, ukulinganisa kunye nezinye izixhobo zenkqubo.Xa kufakwe i-CT entsha kunye nentambo yesibini ye-CT ifakwa ekusebenzeni okanye itshintshwe, ukulinganisa ukuchaneka kwe-CT polarity sele kuyinkqubo ebalulekileyo yomsebenzi wabasebenzi bokukhusela i-relay.Okulandelayo, i-HV Hipot iyakwazisa umlinganiselo we-polarity we-CT ngokweenkcukacha:

                                                               HV Hipot GDHG-201A isiguquli esibanzi CT/PT umvavanyi weempawu

1. Yintoni ipolarity yeCT?

I-polarity yi-electromotive force eyenziwa yi-coil yokuqala kunye ne-coil yesibini phantsi kwesenzo se-flux efanayo yamagnetic ye-iron core.Iziphelo ezimbini ezifikelela kwikhono eliphezulu ngexesha elinye okanye isiphelo esinamandla aphantsi ngexesha elifanayo kuthiwa yi-polarity end efanayo.

I-polarity ebizwa ngokuba yi-transformer yangoku (CT) ibhekiselele kubudlelwane phakathi kolwalathiso lwangoku phakathi kojiko lwalo oluphambili kunye nokujika kwesibini.Ngokutsho kwemimiselo, isiphelo sokuqala se-CT primary winding siphawulwe njenge-P1, kwaye isiphelo somsila siphawulwe njenge-P2;isiphelo sentloko somoya wesibini siphawulwe njenge-S1, kwaye isiphelo somsila siphawulwe njenge-S2.Kwi-wiring, i-P1 kunye ne-S1, i-P2 kunye ne-S2 zibizwa ngokuba yi-polarity end efanayo.Ukucinga ukuba i-I1 yangoku ye-primary winding igeleza ukusuka ekupheleni kwentloko ye-P1 kwaye iphuma kwi-P2 yomsila, i-I2 yangoku efakwe kwi-second winding iphuma kwi-head end S1 kwaye igeleza isuka kwi-S2 yomsila.Ngeli xesha, i-magnetic flux eyenziwa kwi-iron core Kwicala elifanayo, uphawu olunjalo lwe-CT polarity lubizwa ngokuba yi-depolarization.Ngokuchasene noko, kubizwa ngokuba kukongeza i-polarity.Iziguquli zangoku ezisetyenziswa ngokuqhelekileyo, ngaphandle kokuba kuchazwe ngenye indlela, sebenzisa i-depolarization.

2. Kutheni ulinganisa ipolarity yeCT?

I-polarity ye-transformer yangoku kufuneka ivavanywe ngaphambi nangemva kokunikezelwa kunye nokuguqulwa.Ukongezelela, xa ukukhuselwa okungafaniyo ekusebenzeni, ukungasebenzi kokukhusela ulwalathiso lwamandla okanye imitha yeyure ye-watt iguqulwa, i-polarity ye-CT kufuneka ihlolwe kwakhona.Kungenxa yokuba ukuba i-polarity ye-transformer yangoku idibaniswe ngokungalunganga ngexesha locingo, ezi ngozi zilandelayo ziya kwenzeka:

(1) Ukuba i-transformer yangoku isetyenziswe kwisiphaluka sokukhusela i-relay, iya kubangela ukuba isixhobo sokukhusela i-relay singasebenzi okanye sinqabe ukusebenza, kwaye kwangaxeshanye, siya kuchaphazela ukubeka iliso kunye nokuphathwa kwengozi yenkqubo yamandla, kwaye nokuba zibeke emngciphekweni izixhobo kunye nokhuseleko lomntu kwiimeko ezinzima.

(2) Ukuba i-transformer yangoku isetyenziswe kwisekethe yokulinganisa isixhobo, iya kwenza ukubonakaliswa kwezixhobo ezahlukeneyo kunye neemitha kunye nomlinganiselo wamandla ombane awuchanekanga.

(3) Ukuba i-transformer yangoku kunye nokudityaniswa kwenkwenkwezi engaphelelanga isetyenzisiweyo, ukuba i-polarity yaso nasiphi na isigaba iguqulwa, i-current yesigaba esinye (ngokuqhelekileyo isigaba esiphakathi) se-transformer yangoku engadityaniswanga iya kuba ngamaxesha amaninzi aphezulu kunezinye izigaba.

(4) Ukuba i-transformer yangoku kunye noqhagamshelo lweenkwenkwezi ezingaphelelanga zisetyenzisiweyo, ukuba izigaba ezibini ziguqulwa, nangona inqanaba lesithathu langoku kwicala lesibini lingakwazi ukugcina ibhalansi, umehluko we-angle yesigaba kunye necala eliphambili elihambelanayo langoku yi-180 °, ke oko kuya kubuyisela umva imitha.

Ngoko ke, ngumsebenzi obaluleke kakhulu ukugweba ngokuchanekileyo ukuba i-polarity ye-transformer yangoku ichanekile okanye cha.