Kev phom sij thiab cov yam ntxwv ntawm Corona tso tawm ntawm High-voltage Motors

Kev phom sij thiab cov yam ntxwv ntawm corona tawm ntawm cov tshuab hluav taws xob siab

Nyob rau hauv cov txheej txheem ntawm high-voltage motors, yog hais tias tus txheej txheem rwb thaiv tsev nws tus kheej yog puas, los yog muaj teeb meem nrog coil wrapping, shaping los yog xaus kho thaum lub sij hawm tsim cov txheej txheem, cov teeb meem no yooj yim tshwm sim.

Cov hluav taws xob hluav taws xob nyob rau saum npoo ntawm insulated coil nyob rau qhov kawg ntawm stator winding ntawm high-voltage lub cev muaj zog thiab qhov chaw nyob rau hauv lub radial ventilation channel yog siab thiab unevenly faib, thiab thaum lub zog teb nyob rau hauv lub cheeb tsam mus txog qhov tseem ceeb teb lub zog, cov pa roj yog hauv zos ionized los yog electrons sib tsoo thiab raug tso tawm, tsim cov saw txuas txuas ntxiv ntawm "electron collapse" paug. Lub sijhawm no, xiav fluorescence tshwm rau saum npoo ntawm ionized insulating kauj, uas yog, qhov tshwm sim ntawm hluav taws xob. Corona tsim cov teebmeem thermal thiab oxides ntawm ozone thiab nitrogen uas ua rau cov rwb thaiv tsev puas.

Thaum cov txheej txheej ntawm lub stator thermosetting rwb thaiv tsev coil thiab cov phab ntsa zawj yog nyob rau hauv kev sib cuag tsis zoo los yog tsis ruaj tsis khov thiab channeling, vim yog lub oscillation ntawm electromagnetic quab yuam, qhov kev sib cuag taw tes yog sib cais tam sim ntawd, ua rau lub txim hluav taws xob tawm nyob rau hauv lub tank, thiaj li hais tias lub oscillation ntawm electromagnetic quab yuam. Qhov kub thiab txias hauv cheeb tsam nce mus txog ntau pua mus rau ntau txhiab degrees Celsius, qhov chaw rwb thaiv tsev yog raug rau cov galvanic corrosion hnyav, ua rau pockmarks thiab me ntsis txog li 1 hli thiab siab tshaj nyob rau hauv lub sij hawm luv luv, thiab cov electrocorrosive feem hloov nrog kev co thiab kev sib cuag es tsis yog. hloov tsis tu ncua, ua rau cov rwb thaiv tsev tawg.

Piv nrog rau lwm cov ntaub ntawv insulating, huab cua yog feem ntau ua rau corona paug. Yog li ntawd, high-voltage motor coil wrapping, kawg zawm thiab immersion txheej txheem yog tus yuam sij rau kev tswj.

Dab tsi yog cov yam ntxwv ntawm kev tso tawm corona?

Thaum lub sijhawm kuaj thiab ua haujlwm ntawm lub tshuab hluav taws xob siab, qee zaum muaj lub suab "hissing", uas yog qhov peb hu ua lub suab nrov corona.

Corona tso tawm yog tus cwj pwm los ntawm lub suab "hissing", qee zaum muaj lub ntsej muag tsis pom kev: qhov tawm paug tshwm sim thaum lub taub hau nrog lub vojvoog me me ntawm curvature nyob ntawm tus neeg xyuas pib. Kev tso tawm corona tuaj yeem lossis tsis raug coj mus rau ib qho kev taw qhia tshwj xeeb.

Thaum cov hluav taws xob tawm, lub teb lub zog nyob ze ntawm lub taub yog muaj zog, cov roj nyob ze ntawm lub taub yog ionized, thiab tus nqi tuaj yeem tawm ntawm tus neeg xyuas pib; Lub zog ntawm thaj chaw deb ntawm qhov kawg yog qhov tsis muaj zog, thiab cov ionization tsis tiav, yog li tsuas yog ib qho me me tam sim no tuaj yeem tsim tau.

Corona tso tawm tuaj yeem ua rau tsis tu ncua lossis tsis tu ncua. Lub zog ntom ntom ntawm corona tawm yog tsawg dua li qhov hluav taws xob tawm. Qee qhov xwm txheej, yog tias lub peev xwm ntawm tus neeg xyuas pib tau tsa, corona txhim kho mus rau lub txim ua rau lwm yam khoom.

Qhov degree ntawm qhov tsis sib xws ntawm cov hluav taws xob uas yuav tsum tau ua rau corona muaj ntau yam ua rau hom roj. Hauv cov pa tsis zoo, corona paug tshwm sim thaum lub electrode yog lub dav hlau ntawm lub pob thiab qhov sib txawv ntawm cov electrodes yog ib lub vojvoog. Hloov pauv, yog tias cov pa roj tsis yog hluav taws xob, corona tawm tsis tsim.

Lub polarity ntawm corona tawm yog txiav txim los ntawm polarity ntawm ib tug electrode nrog ib tug me me vojvoog ntawm curvature. Yog tias ib qho hluav taws xob nrog lub vojvoog me me ntawm curvature muaj qhov zoo, qhov zoo corona tawm tshwm sim, thiab rov ua dua. Tsis tas li ntawd, corona tso tawm kuj tuaj yeem muab faib ua DC corona, AC corona, thiab high-frequency corona raws li hom hluav taws xob muab. Raws li tus naj npawb ntawm corona electrodes tam sim no, nws muab faib ua unipolar corona, bipolar corona thiab multipole corona.