I-Shaft yamanje iyi-hacker yesistimu yokuzala ye-ezintathu isigaba motor umkhiqizo, futhi uma i-shaft current seyikhiqiziwe, izobangela ukuthi isistimu yokuthwala imoto iphahlazeke ngesikhathi esifushane. Ngokwezimo ezidingekayo zesizukulwane samanje, i-voltage kanye nesifunda, isifunda sihlukile kumjikelezo olula, awukho umugqa ocacile, kunzima ukukala okwamanje, ngakho-ke inhloso eyengeziwe nokutholakala okungenzeka ukutholakala kwe-shaft voltage.
OkwehlukileImikhiqizo yemoto yokungeniswa kwesigaba esi-3kanye nesakhiwo sesistimu yokuzala, umehluko wokumelana kumjikelezo mncane, futhi umthelela omkhulu yi-voltage ye-shaft ehambisana nama-motor ahlukene, lapho i-voltage ye-shaft ifinyelela inani elithile (ngokuvamile i-300-500mV), izokwenza ukuthi ifilimu yamafutha yesistimu yokuthwala iphulwe, futhi ikhiqize umthamo omkhulu wamanje. I-shaft voltage isho i-voltage ekhiqizwa phakathi kweziphetho ezimbili ze-motor shaft noma phakathi kwe-shaft ejikelezayo nesihlalo esiphethe. Kubangelwa ukungalingani kwesekethe kazibuthe ezungeze i-motor shaft. Lokhu kuguquguquka kazibuthe okungalinganiselwe kusika i-shaft ejikelezayo futhi kubangele i-voltage ye-shaft kuzo zombili iziphetho ze-shaft.
Ngaphansi kwezimo ezivamile, ifilimu yamafutha okugcoba phakathi kwe-shaft kanye ne-bearing idlala indima yokuvikela. Lapho i-voltage ye-shaft ikhuphukela enanini elithile, ikakhulukazi lapho injini iqala, ifilimu likawoyela wokugcoba alikakheki kahle, i-voltage ye-shaft izodiliza ifilimu kawoyela ukuze yakhe iluphu, ikhiqize umthamo omkhulu wamanje we-shaft, ngezinye izikhathi ofinyelela emakhulwini ambalwa kuya ezinkulungwaneni zama-amps. Ngokusho kobukhulu be-voltage ye-shaft, ingalinganiswa imitha ye-millivolt (ebizwa nangokuthi i-voltmeter ephezulu yokumelana). Kusukela ekuhlaziyweni kokusatshalaliswa ngokomzimba kwezingxenye, i-motor shaft kanye nezindlu kufakwe i-grease ku-bearing, lapho i-motor shaft voltage ikhona, okungukuthi, kukhona umehluko ongaba khona kuzo zombili iziphetho ze-motor shaft. Uma i-motor inikwe amandla, ingalinganiswa ngokuqondile nge-probe yokulinganisa ye-voltmeter, okungukuthi, enye ye-probes ixhumene ngokuguquguqukayo ne-shaft (ngoba i-shaft isesimweni esijikelezayo), kodwa gwema indlela eyinhloko isikhundla sokuvimbela izingozi; Enye i-probe ye-voltmeter kufanele ixhumane kahle nezindlu zemoto, okungukuthi, kuyadingeka ukugwema isikhundla ngopende ongaphezulu, futhi uqinisekise ukuthi izindlu zemoto zisekelwe kahle.
Iningi lezinhlelo zokuthwala ze-high-voltageizinjini zesigaba ezintathukanye nama-motor frequency aguquguqukayo athathe izinyathelo ezidingekayo ze-shaft current, kodwa lokhu akuthinti ukutholwa kwe-shaft voltage.