MTE12401092 Mphete Yokhazikika

Mphete ya Morteng grounding imagwira ntchito yofunika kwambiri poletsa kupangika ndi kusonkhana kwa shaft voltage ndi bearing currents—mavuto awiri ofala koma owononga pamakina amagetsi ozungulira monga ma mota ndi ma jenereta. Shaft voltage nthawi zambiri imachokera ku zotsatira za electromagnetic induction mkati mwa makina, monga kugawa kosayembekezereka kwa maginito flux mu stator core, capacitive coupling pakati pa stator windings ndi rotor, kapena ma voltage otsalira ochokera ku variable frequency drives (VFDs) omwe amapatsa mphamvu ma mota ambiri amakono amakampani. Pamene voltage iyi ikukwera pa shaft, imatha kupitirira mphamvu ya dielectric ya filimu yopaka mafuta mu ma bearing a makina. Mukadutsa malire awa, kutuluka kumachitika, zomwe zimadziwika kuti bearing current. Mafunde awa, ngakhale nthawi zambiri amakhala ochepa, amakhala ochulukirapo, ndipo pakapita nthawi, amawononga ma bearing raceways ndi zinthu zozungulira, zomwe zimapangitsa kuti ma pit, spalling, ndi bearing isanakwane. Pazochitika zazikulu, izi zitha kubweretsa nthawi yosayembekezereka ya makina, kukonza kokwera mtengo, komanso kuwonongeka kwachiwiri kwa zida zolumikizidwa mu mzere wopanga.

Kuphatikiza apo, mphete yokhazikika imathandizira kuti magetsi azigwirizana (EMC) mwa kuchepetsa kutulutsa kwa magetsi omwe amasokonekera omwe angasokoneze zida zobisika zapafupi. Mwa kusokoneza mafunde otuluka ndikuletsa kuyenda kwa magetsi osalamulirika, mphete yokhazikika imathandiza kusunga malo okhazikika amagetsi, kuchepetsa chiopsezo cha kusokonezedwa kwa magetsi (EMI) komwe kungasokoneze magwiridwe antchito a makina olumikizirana, mapanelo owongolera, kapena zida zina zamagetsi zolondola. Potsatira miyezo ndi malamulo achitetezo amakampani, kuphatikizidwa kwa mphete yokhazikika yoyenera komanso yoyikidwa nthawi zambiri ndi chinthu chofunikira kuti zitsimikizire kuti zida zamagetsi zikugwira ntchito bwino, kuteteza ogwira ntchito ku kugunda kwamagetsi, ndikuletsa kuwonongeka kwa katundu wamtengo wapatali.