Kodi kudziwa polarity wa thiransifoma panopa?

Transformer yamakono (CT) ndi chida chofunikira chamagetsi mumagetsi.Ndilo udindo wodzipatula pakati pa machitidwe apamwamba ndi otsika komanso kutembenuka kwa voteji kukhala otsika.Kaya wayayo ndi yolondola kapena ayi ndi yofunika kwambiri pakugwira ntchito kwanthawi zonse kwa chitetezo, muyeso, metering ndi zida zina zamakina.CT yatsopano ikayikidwa ndipo chingwe chachiwiri cha CT chikayamba kugwira ntchito kapena kusinthidwa, kuyeza kulondola kwa CT polarity kale ndi njira yofunikira yogwirira ntchito kwa ogwira ntchito zotetezera.Kenako, HV Hipot iwonetsa muyeso wa CT polarity mwatsatanetsatane:

                                                               HV Hipot GDHG-201A thiransifoma yokwanira CT/PT yoyesa mawonekedwe

1. Kodi polarity ya CT ndi yotani?

Polarity ndi mphamvu ya electromotive yomwe imayambitsidwa ndi koyilo yoyamba ndi koyilo yachiwiri pansi pa machitidwe a maginito omwewo achitsulo.Mapeto awiri omwe amafika pamtunda wapamwamba panthawi imodzi kapena mapeto omwe ali otsika kwambiri panthawi imodzimodzi amatchedwa polarity end.

Chomwe chimatchedwa thiransifoma yamakono (CT) polarity imatanthawuza mgwirizano pakati pa njira yomwe ilipo pakati pa mapiringiro ake oyambirira ndi mafunde achiwiri.Malingana ndi malamulo, mapeto oyambirira a CT primary winding amalembedwa kuti P1, ndipo mchira wa mchira umatchedwa P2;mapeto a mutu wa mafunde achiwiri amalembedwa ngati S1, ndipo mapeto a mchira amalembedwa ngati S2.Mu waya, P1 ndi S1, P2 ndi S2 amatchedwa polarity end.Kungoganiza kuti I1 yaposachedwa yamphepo yoyambira imayenda kuchokera kumapeto kwa mutu P1 ndikutuluka kuchokera kumapeto kwa mchira P2, I2 yomwe imapangidwira pamphepo yachiwiri imatuluka kuchokera kumapeto kwamutu S1 ndikulowera kuchokera kumapeto kwa mchira S2.Panthawiyi, maginito amatuluka muzitsulo zachitsulo Munjira yomweyo, chizindikiro cha CT polarity chimatchedwa depolarization.M'malo mwake, amatchedwa kuwonjezera polarity.Ma transfoma omwe amagwiritsidwa ntchito nthawi zambiri, pokhapokha atanenedwa mwanjira ina, amagwiritsa ntchito depolarization.

2. Chifukwa chiyani kuyeza polarity wa CT?

Polarity ya thiransifoma yamakono iyenera kuyesedwa isanayambe komanso itatha kuperekedwa ndi kukonzanso.Kuonjezera apo, pamene chitetezo chosiyana chikugwira ntchito, kulephera kwa chitetezo cha mphamvu kapena mita ya ola la watt kusinthidwa, polarity ya CT iyeneranso kuyang'aniridwa.Zili choncho chifukwa ngati polarity ya thiransifoma yamakono ikulumikizidwa molakwika panthawi ya waya, ngozi zotsatirazi zidzachitika:

(1) Ngati thiransifoma yamakono ikugwiritsidwa ntchito mu dera lachitetezo cha relay, idzachititsa kuti chipangizo chotetezera cholumikizira chiwonongeke kapena kukana kugwira ntchito, ndipo panthawi imodzimodziyo, chidzakhudza kuyang'anira ntchito ndi kuyendetsa ngozi kwa magetsi, ndi ngakhale kuika pangozi zipangizo ndi chitetezo chaumwini pazochitika zazikulu.

(2) Ngati thiransifoma yamakono ikugwiritsidwa ntchito muzitsulo zoyezera zida, idzawonetsa zida zosiyanasiyana ndi mamita ndi kuyeza kwa mphamvu yamagetsi kukhala kolakwika.

(3) Ngati thiransifoma yamakono yokhala ndi kugwirizana kosakwanira kwa nyenyezi ikugwiritsidwa ntchito, ngati polarity ya gawo lililonse imasinthidwa, nthawi yamakono ya gawo limodzi (kawirikawiri gawo lapakati) la transformer yosagwirizana idzakhala yochuluka kangapo kuposa ya magawo ena.

(4) Ngati thiransifoma yamakono yokhala ndi kugwirizana kosakwanira kwa nyenyezi ikugwiritsidwa ntchito, ngati magawo awiriwa atembenuzidwa, ngakhale kuti magawo atatu omwe ali pambali yachiwiri amatha kukhalabe bwino, kusiyana kwa mbali ya mbali ndi gawo lofananirako ndi 180 °, kotero izo zidzasintha mita.

Choncho, ndi ntchito yofunikira kwambiri kuweruza molondola ngati polarity ya transformer yamakono ndi yolondola kapena ayi.