Umsebenzi oyinhloko we-imojuli enamandla aphezuluiwukuguqula okokufaka kwe-low voltage kube ukukhipha kwe-high voltage okuzinzile nokulawulekayo, ngenkathi kufezwa ukuhlukaniswa kukagesi, ukuvikelwa kokuphepha kanye nokulawula okunembile. Kuyingxenye ebalulekile ebalulekile ezimweni ezahlukahlukene zokusetshenziswa kwe-high voltage, kusekela ukusebenza okuvamile kwemishini, ukuqinisekisa ukuphepha kanye nokuthuthukisa ukusebenza kahle. Izimo zokusetshenziswa kwayo zibanzi, zihlanganisa amasimu amaningi abalulekile njengamandla amasha, ukunakekelwa kwezokwelapha, imboni, kanye nocwaningo lwesayensi, futhi ifanele izidingo zokunikezwa kwamandla kagesi aphezulu kanye nokushayela kwezimboni ezahlukene.
Emkhakheni wezimoto ezintsha zamandla, imodyuli enamandla aphezulu iyinsika yesistimu yokulawula kagesi. Iguqula amandla aphansi ebhethri abe amandla aphezulu angu-300-800V ukuze inikeze amandla ku-drive motor, i-interface yokushaja okusheshayo, kanye ne-air conditioner compressor. Ngesikhathi esifanayo, iqaphela ukubuyiswa kwamandla kanye nokuvikelwa okuningi kokuphepha ukuqinisekisa ukuphepha kokushayela. Emishinini yezokwelapha, imishini ye-X-ray, i-CTS, izisheshisi ze-radiotherapy, njll. zidinga amamojula ane-voltage ephezulu ukuze ahlinzeke ngamandla aphezulu azinzile ukuze anikeze amandla amashubhu e-X-ray kanye nama-detector, okuqinisekisa ukunemba kwezithombe kanye nemiphumela yokwelapha. Ngaphezu kwalokho, ngokuklama okuphezulu kokuhlukaniswa, ingozi ye-voltage ephezulu kubasebenzi bezokwelapha iyagwenywa.

Ezimweni zokukhiqiza zezimboni, amamojula ane-voltage ephezulu asetshenziswa emishinini efana nama-precipitator e-electrostatic, ukufutha, kanye nokuhlanza i-plasma, okuhlinzeka nge-electrostatic noma i-plasma ene-voltage ephezulu ukuthuthukisa ukusebenza kahle kokukhiqiza kanye nekhwalithi yomkhiqizo. Embonini ye-semiconductor, inikeza ukuzinza okuphezulu kanye ne-voltage ephezulu yokufakelwa kwe-ion kanye nemishini ye-lithography ukuqinisekisa ukunemba kokukhiqizwa kwe-chip. Emkhakheni wocwaningo lwesayensi, izinsimbi ezifana nama-particle accelerator, ama-electron microscope, kanye nama-mass spectrometer zithembele kumamojula ane-voltage ephezulu ukuhlinzeka nge-voltage ephezulu enembile, ephansi, esekela inqubekela phambili ebushelelezi yokuhlolwa kocwaningo lwesayensi.

Ngaphezu kwalokho, isetshenziswa futhi kuma-circuit breakers ane-voltage ephezulu kanye nokuvikelwa kokudluliselwa kwe-relay ezinhlelweni zamandla, kanye nezinsiza zamandla ezisebenzisa i-high-voltage drive kuma-radar okuxhumana. Inemisebenzi yokusatshalaliswa kwamandla, ukuqapha isimo kanye nokuxwayisa amaphutha kusenesikhathi, okuthuthukisa ngokuphelele ukuzinza, ukuphepha kanye nezinga lobuhlakani bezinhlelo ezine-voltage ephezulu emikhakheni eyahlukene.