Isangqa sokumisa isiseko MTE01082-01

I-grounding ring idlala indima ebalulekileyo ekuthinteleni ukwakheka kunye nokuqokelelwa kwe-shaft voltage kunye ne-bearing currents—iingxaki ezimbini eziqhelekileyo kodwa ezitshabalalisayo kumatshini ojikelezayo ombane njengee-motors kunye neejenereyitha. I-shaft voltage idla ngokuvela kwiziphumo zokungenisa i-electromagnetic ngaphakathi komatshini, ezifana nokusasazwa kwe-magnetic flux engalinganiyo kwi-stator core, i-capacitive coupling phakathi kwe-stator windings kunye ne-rotor, okanye ii-residual voltages ezivela kwi-variable frequency drives (VFDs) ezinika amandla ii-motors ezininzi zanamhlanje zoshishino. Xa le voltage iqokelelana kwi-shaft, inokudlula amandla e-dielectric yefilimu yokuthambisa kwii-bearing zomatshini. Nje ukuba lo mgca ugqityiwe, kuvela ukukhupha, okudala oko kwaziwa ngokuba yi-bearing current. Le currents, nangona idla ngokuba ncinci ngobukhulu, ixinene kakhulu, kwaye ngokuhamba kwexesha, itshabalalisa i-bearing raceways kunye nezinto eziqengqelekayo, nto leyo ekhokelela ekuqhekekeni, ekuqhekekeni, nasekusileleni kwe-bearing ngaphambi kwexesha. Kwiimeko ezinzima, oku kunokubangela ukungasebenzi komatshini okungalindelekanga, ukulungiswa okubiza kakhulu, kunye nomonakalo wesibini kwizixhobo ezixhunyiweyo kumgca wemveliso.