Kungani kusetshenziswa ukuvikelwa kokwehluka kuma-motor amakhulu anamandla aphezulu?

Uma kuqhathaniswa nokuncane kanyeamamotha aphakathi nendawo,ama-motor ane-voltage ephezuluziyabiza, futhi izimo zokusetshenziswa kwazo zibalulekile futhi zikhethekile. Kungakhathaliseki ukuthi ukulahlwa komzimba wemoto ngemuva kwephutha noma ezinye izinkinga ezithathwe yiphutha, kungaba kubi kakhulu kunalokho esingakucabanga. Ngenxa yalesi sizathu, amadivayisi okuvikela umehluko asetshenziselwa amamotha ane-voltage ephezulu asetshenziswa kwezinye izikhathi ezikhethekile, inhloso yawo ukuthola izinkinga ngesikhathi nangempumelelo nokuvimbela ukuwohloka okuqhubekayo kwezinkinga.
Ukuvikelwa kokwehluka kuyindlela yokuvikela ephumelela kakhulu yokusebenza ngokuphephile kwemishini kagesi. Isebenzisa izici zokuqalisa izenzo zokuvikela ngomehluko wevektha phakathi komshini wokufaka kanye nomshini wokukhipha weimishini kagesi, okwenza noma iyiphi inethiwekhi kagesi enamachweba amabili, ijeneretha, injini, i-transformer kanye neminye imishini kagesi ibe nezinhlelo zokusebenza zakudala kakhulu.

Ukuvikelwa kokwehluka kusetshenziswa kabanzi kuma-motor amakhulu ane-voltage ephezulu. Isibonelo, ama-motor ane-voltage ephezulu asetshenziswa emishinini yamandla amakhulu kanye nemishini yokungenisa umoya emayini kumele afakwe amadivayisi okuvikela okwehluka ukuqinisekisa ukusebenza okuphephile nokuthembekile kohlelo futhi agweme ukulahlekelwa okukhulu kwezomnotho kanye nezingozi zokuphepha okubangelwa ukuvalwa okungalindelekile.
Ama-stator windings ama-motor amakhulu anama-voltage aphezulu avame ukusebenzisa uxhumano lwezinkanyezi, kanye nama-terminal amathathu okukhipha ngokuzenzakalelayo. Lapho kuqaliswa ukuvikelwa kokungafani, imoto kumele ibe nama-terminal okukhipha ayi-6. Idivayisi yokuvikela umehluko esetshenziswa emotweni isebenza kanje: thola imisinga yokuqala neyokuphela yemoto, bese uqhathanisa umehluko wesigaba kanye ne-amplitude phakathi kwemisinga yokuqala neyokuphela. Ngaphansi kwezimo ezijwayelekile, umehluko we-amplitude kanye nesigaba phakathi kwemisinga yokuqala neyokuphela ungu-zero, okungukuthi, amandla ageleza emotweni alingana namandla ageleza ephuma emotweni; lapho kwenzeka iphutha le-short circuit njenge-phase-to-phase, turn-to-turn noma to ground ngaphakathi kwemoto, amandla okuhlukanisa akhiqizwa phakathi kwalawa amabili futhi afinyelela inani elithile, umsebenzi wokuvikela uyavuselelwa.