Loj High -Voltage Motors: Txais Kev Tiv Thaiv Sib Txawv

Loj loj -voltage motorsua rau cov nqi tsim khoom ntau dua li cov me me thiab nruab nrab- cov motors loj thiab tau siv rau hauv cov xwm txheej tseem ceeb thiab tshwj xeeb hauv kev lag luam. Qhov tshwm sim loj heev, suav nrog kev puas tsuaj rau cov khoom siv thiab cov kev pheej hmoo ua haujlwm cascading, yuav tshwm sim thaum muaj hluav taws xob ua txhaum cai. Vim li no, lub siab loj -voltage motors hauv qhov chaw ua haujlwm tseem ceeb tau nruab nrog cov khoom siv tiv thaiv sib txawv txhawm rau txheeb xyuas qhov txawv txav hauv lub sijhawm thiab tiv thaiv kev ua txhaum kev nthuav dav zoo.

Loj loj -voltage motors nyob rau hauv high-voltage fais fab tshuab cia siab rau qhov sib txawv tiv thaiv kom muaj kev cuam tshuam qhov kev khiav hauj lwm qhov tseeb ntawm sab hauv windings. Cov motors no sau cov teeb liab tam sim no los ntawm lub taub hau thiab tus Tsov tus tw kawg ntawm stator windings rau kev xam pom tseeb, thiab lawv cov kev tiv thaiv yuav cia li qhib qhov kev nqis tes ua thaum cov ntaub ntawv tam sim no tshaj qhov pib ua ntej.

Ib qho chaw pib, lossis tus nqi tseem ceeb, qhia qhov tsawg kawg nkaus lossis qhov siab tshaj plaws los ua kom muaj cov lus teb tshwj xeeb hluav taws xob. Kev tiv thaiv kev sib txawv ua raws li qhov sib txawv vector ntawm cov khoom nkag thiab tawm tam sim no, yog li qhov loj loj -voltage motors, ua ke nrog cov tshuab hluav taws xob, transformers thiab lwm yam khoom siv hluav taws xob tseem ceeb, tuaj yeem ua tiav kev saib xyuas kev nyab xeeb ntawm kev lag luam los ntawm cov tswv yim tiv thaiv no.

Loj loj -voltage motorsnyob rau hauv cov tub ntxhais muaj chaw xws li mine fais fab mov thiab lub ntsiab qhov cua tshuab yog mandatorily haum nrog txawv kev tiv thaiv. Qhov kev teeb tsa tseem ceeb no ua kom tag nrho lub zog hluav taws xob ruaj khov thiab tiv thaiv kev poob nyiaj txiag loj heev thiab kev nyab xeeb kev nyab xeeb los ntawm kev kaw qhov xwm txheej tsis tau npaj tseg.

Cov motors ib txwm siv lub hnub qub - txuas stator windings nrog peb lub terminals tawm hauv tus qauv tsim. Thaum yuav tsum muaj kev tiv thaiv sib txawv, cov motors no yog tsim los nrog rau 6 winding terminals rau cov teeb liab sau. Thaum lub sijhawm ua haujlwm ib txwm muaj, cov dej ntws tawm thiab cov dej ntws tawm ntawm qhov loj siab -voltage motors tswj cov amplitude thiab theem nrog xoom qhov sib txawv tam sim no. Thaum inter-theem, tig- rau- tig los yog lub ntiaj teb luv luv- Circuit Court faults tshwm sim hauv, pom tseeb txawv tam sim no yuav raug tsim los ua kom muaj kev tiv thaiv sai sai.

Loj loj -voltage motorstau txais kev txhawb nqa los ntawm kev hloov kho qhov kev tiv thaiv kev sib txawv tsis tu ncua kom ua tau raws li ntau haiv neeg ntawm - qhov xav tau ntawm qhov chaw. Cov chav tiv thaiv kev sib koom ua ke no muab kev ua haujlwm zoo xws li tam sim no overcurrent, inverse-time overload, ob-stage definite-time negative-sequence and zero-sequence tam sim no monitoring, as well as tiv thaiv rotor stalling, overtime startup and nquag startup.

Cov motors nrog ntxiv - muaj peev xwm loj tau teeb tsa nrog peb -phase longitudinal sib txawv tiv thaiv. Qhov kev tsim no tso cai rau cov motors coj stator winding thiab qhov hluav taws xob inter-theem luv circuits thiab ib zaug-theem lub ntiaj teb faults nyob rau hauv tag nrho-kev tiv thaiv tseem ceeb, realizing instantaneous mus txawv tebchaws cutoff thiab dual kev ruaj ntseg lav rau lub hwj chim input thiab tso zis.

Cov motors nqa qhov sib npaug thiab equidirectional los ntawm tam sim no nyob rau hauv ib txwm muaj hwj chim kis tau tus mob, thaum opposite tsis yog - los ntawm tam sim no yuav tshwm nyob rau hauv qhov teeb meem txhaum cai. Lawv qhov sib piv txwv kev tiv thaiv qhov sib txawv yuav siv tsis yog - los ntawm tam sim no raws li kev khiav hauj lwm kom muaj nuj nqis thiab los ntawm tam sim no raws li qhov txwv kom muaj nuj nqis. Tiag -Lub sijhawm saib xyuas cov ntaub ntawv pab cov motors no paub qhov txawv ntawm kev ua haujlwm ib txwm muaj, qhov teeb meem txhaum cai thiab kev ua haujlwm tsis zoo.