Ndepapi pasi pano ruzha runobva kutransformer?

Ruzha rwe transformer runobva mukati me transformer.Iyo shanduri yakavakirwa pamusimboti we electromagnetic induction, ine primary side winding coil uye yechipiri side winding coil yakaiswa mukati, uye silicon simbi pepa rine high magnetic conductivity zvinhu pakati. mamiriro ezvinhu, coil windings ye transformer inoverengwa maererano ne-cross-sectional area yepakati.

Sezvo paine coil mhepo inomonereka, kana yakabatana neAC 50Hz magetsi, pachave nekunakidzwa ikozvino.Mu AC core coil, kune zvikamu zviviri zvekurasikirwa, kurasikirwa kwakasiyana kupfupi-kurasikirwa kwedunhu, ndiko kuti, kurasikirwa kwemhangura, iyo zvakare yakakamurwa kuita zvikamu zviviri, zvinoti rinoshanda simba chikamu uye reactive simba chikamu.

Iyi "eddy current" inowedzera kurasikirwa kweshanduro uye inopisa musimboti we transformer, ichisimudza kutonhora kwemushanduri.

Kune kurasikirwa kwemhangura RI ² pane coil resistance R uye kurasikirwa kwesimbi (hysteresis kurasikirwa uye eddy ikozvino kurasikirwa) musimbi core.Kurasika kwesimbi kunoda kuenzana neBm ².Kana kuwanda kwemagetsi kunogadziriswa, kurasikirwa kwesimbi kwekoiri kunoenderana nemagetsi anoshanda.Maererano nepfungwa yekugara ichiyerera U=4.44fNBmS, iyo Bm iri pakati ndeye. kuenzana nemagetsi anoshandiswa.Nemamwe mazwi, kurasikirwa kwesimbi kunenge kuenzana neskweya yemhepo inoshandiswa.

Iyo transformer inogona kutonga kushanda maererano nezwi rekushanda.Nzira yacho ndeyokushandisa imwe mugumo wetsvimbo yekuteerera pane tangi yemafuta ye transformer, uye imwe inopera pedyo nenzeve kuti unyatsoteerera inzwi.Kana iri inoenderera "yuyu" ruzha, zvinoreva kuti transformer iri kushanda zvakajairika.Kana iyo "yuyu" inzwi rinorema kudarika nguva dzose, tarisa kupisa kwemhepo, ikozvino uye mafuta emushanduri kuti uone kana inokonzerwa nemhepo yakawandisa kana kuti yakawandisa, kana zvisingaiti, inonyanya kukonzerwa nesimbi yakasununguka.Paunonzwa kurira kwe "squeak, squeak", tarisa kana pane flashover pane casing surface.Kana kurira kwe "kuputika" kunonzwika, pane kuparara kwemukati wekudzivirira.

Volt-ampere maitiro e AC dunhu resimbi musimboti coil

Hapana-mutoro kurasikirwa yakakamurwa kuita zvikamu zviviri: rinoshanda simba kurasikirwa uye reactive simba kurasikirwa.Transformer mune yechipiri yakavhurika-yedunhu mamiriro, yekutanga ichine imwe yazvino, uyezve yakapetwa neiyo yekutanga rated voltage ichave neimwe simba rekushandisa, iyi yazvino inonzi no-load current.Kurasikirwa kwesimba rinoshanda kunoreva kurasikirwa kwe hysteresis uye kurasikirwa kwazvino eddy musimbi musimboti, iyo inowanzo tsanangurwa mune fekitori yakatarwa kana bvunzo rondedzero yeshanduko.Iyo reactive simba kurasikirwa chikamu ndiko kurasikirwa kunokonzerwa neiyo excitation ikozvino, iyo inenge yakaenzana neasina-mutoro simba re transformer uye inogona kuverengerwa neiyo inotevera formula maererano neino-mutoro ikozvino.

Q₀=I₀ (%)/100Se

Iye Q₀mune fomula inoreva reactive simba kurasikirwa mune hapana-mutoro kurasikirwa, mu kvar zvikamu.

I ₀ (%) inoreva chikamu cheshanduro isina-mutoro wezvino kune yakatarwa ikozvino.

S₀rating inoreva huwandu hwakayerwa hweiyo transformer muKVA.

Kushanda nheyo ye-single-phase transformer

Chikamu chinoshanda ndiko kurasikirwa kunokonzerwa nekupikisa kwekutanga mhepo uye yechipiri mhepo yekushandura kana ichipfuura nepakati pemazuva ano, iyo inofananidzwa nesquare yezvino, saka hukuru hwayo hunoenderana nemutoro uye simba rekushandura.Iyo reactive simba kurasikirwa chikamu chinonyanya kurasikirwa kunokonzerwa nekubuda kwemvura, iyo inogona kuverengerwa neinotevera formula.

Qd=Ud (%)/100Se

Iyo Qd muformula inoreva iyo reactive simba kurasikirwa chikamu cheiyo transformer pfupi-yedunhu kurasikirwa, mu kvar zvikamu.

Ud ndiyo muzana yepfupi-yedunhu voltage kune yakatarwa voltage;

Se inoreva huwandu hwakayerwa hweiyo transformer mu kvA.