Ukubuka: 0 Umbhali: Isikhathi Sokushicilela Isihleli Sesayithi: 2026-10-20 Umsuka: Isayithi
Ama-Transformer cores akhiwa ngokuyinhloko ngamashidi ensimbi ye-silicon ngesikhathi sokukhiqiza. Ukuze unciphise ama-eddy currents ngokwezinga elithile, kunokumelana okuthile kokufakwa phakathi kwamashidi. Kodwa-ke, ngenxa yomthamo omkhulu we-inter-sheet, amashidi angabhekwa njengoxhumeke ngogesi endaweni kagesi eshintshanayo. Ngakho-ke, ukugxilisa umgogodla endaweni eyodwa kwanele ukubophela amandla awo wonke ama-laminations aqoqiwe kumandla aphansi.
Uma ingqikithi noma izingxenye zayo zensimbi zisekelwe emaphuzwini amabili noma ngaphezulu (i-multi-point grounding), i-loop evaliwe izokwakhiwa phakathi kwamaphoyinti aphansi. Le loop ixhuma ingxenye ye-flux kazibuthe, idala amandla e-electromotive (EMF) futhi idale umsinga ojikelezayo. Lokhu kungaholela ekushiseni okweqile kwendawo futhi kushise umnyombo.
Amaphuzu Abalulekile E-Transformer Core Grounding
Faka umthofu ohlukile wokusekela izinsimbi zejoka. Uma ingqikithi ithinta ngephutha i-clamp engenhla futhi ibangele iphutha lesisekelo lamaphuzu amaningi, i-fault current izozungeza kuphela ngaphakathi kwe-core kanye nokuhlanganisa i-clamp. Ngaphandle komthofu ohlukile, akukho okwamanje okuzogeleza ngomthofu oyinhloko oyisisekelo, okungase kuholele izisebenzi ezinakekela isondlo ukuba zikholelwe ngephutha ukuthi alikho iphutha. Ngokufaka umthofu ohlukile, noma yikuphi ukuthintana phakathi kwenkambo kanye ne-clamp kuyokwenza iluphu emithonjeni emibili yangaphandle yaphansi, okuvumela amandla aphansi ukuthi abonakale ngokunembile ngaphandle.
Misa i-core grounding shunt phakathi nendawo yejoka. Ngalokhu kubekwa, kungakhathaliseki ukuthi ikuphi indawo yamabholithi avikelayo kumabhande ethayi yejoka noma indawo yephuzu lokumisa iphutha, i-voltage engenisiwe ku-loop izoba yi-1/4 kuphela ye-voltage yokujika. Ngenxa yalokho, amandla aphansi azokhawulelwa kuma-ampere ambalwa, aphansi kakhulu kunalapho i-grounding shunt ibekwa kwezinye izikhundla.
