Shaft yazvino ndiyo hacker yekubereka system yematatu chikamu mota chigadzirwa, uye kana shaft ikozvino yagadzirwa, ichaita kuti mota inotakura mota iparare munguva pfupi. Maererano nemamiriro ezvinhu anodiwa echizvarwa chemazuva ano, magetsi uye dunhu, dunhu rakasiyana kubva kune dunhu riri nyore, hapana mutsara wakajeka, zvakaoma kuyera ikozvino, saka chinangwa chakanyanya uye chinogoneka chekutsvaga ndechekuona shaft voltage.
Kune zvakasiyana3 chikamu induction mota zvigadzirwauye kutakura sisitimu yehurongwa, mutsauko wekupokana mudunhu idiki, uye iyo yakanyanya kukonzeresa ndeye shaft voltage inoenderana neyakasiyana mota, kana shaft voltage inosvika pane imwe kukosha (kazhinji 300-500mV), ichaita kuti firimu remafuta reiyo inotakura system iparadzwe, uye kuburitsa hombe shaft ikozvino. Shaft voltage inoreva voltage inogadzirwa pakati pemativi maviri emota shaft kana pakati peshaft inotenderera nechigaro chekutakura. Inokonzerwa nekusaenzana kwemagnetic circuit yakatenderedza mota shaft. Iyi isina kuenzana yemagineti flux inocheka shaft inotenderera uye inoita kuti shaft voltage kumagumo ese e shaft.
Mumamiriro ezvinhu akajairwa, firimu remafuta ekuzora pakati pe shaft nebearing rinoita insulating. Kana iyo shaft voltage ichiwedzera kune imwe kukosha, kunyanya kana mota yatanga, firimu remafuta ekuzora harina kuumbwa zvakatsiga, shaft voltage inopwanya firimu remafuta kuita loop, ichigadzira shaft yakawanda ikozvino, dzimwe nguva inosvika mazana akati wandei kusvika kuzviuru zveamps. Zvinoenderana nehukuru hweshaft voltage, inogona kuyerwa nemamita millivolt (inonziwo high resistance voltmeter). Kubva pakuongorora kwekugoverwa kwemuviri kwezvikamu, shaft yemotokari uye imba inodzivirirwa kuburikidza negirizi mukutakura, kana mota shaft voltage iripo, ndiko kuti, pane mutsauko unogona kuitika kumigumo yese yemota shaft. Kana iyo motokari yakasimbiswa, inogona kuyerwa zvakananga kuburikidza nekuyeresa probe ye voltmeter, kureva kuti, imwe yeprobes iri muhutano hwemagetsi ne shaft (nokuti shaft iri mumamiriro ekutenderera), asi dzivisa nzira yakakosha nzvimbo yekudzivirira njodzi; Imwe probe yevoltmeter inofanirwa kunge yakabatana zvakanaka nemota dzimba, ndiko kuti, zvinodikanwa kudzivirira chinzvimbo nependi yependi, uye kuona kuti imba yemota yakanyatsodzika.
Mazhinji ekutakura masisitimu e-high-voltagematatu phase motorsuye variable frequency motors dzakatora matanho anodiwa kune shaft ikozvino, asi izvi hazvikanganisi kuonekwa kweshaft voltage.