Mabhurashi eMorteng grounding carbon brushes ndiwo akakosha mumamota anotenderera (akadai semajenareta nemamota emagetsi), anoshandiswa zvakanyanya kubvisa ma shaft currents, kuchengetedza kuchengetedzeka kwemidziyo, uye kubatsira masisitimu ekutarisa. Maitiro ekushandisa uye mabasa awo ndeaya anotevera:
I. Mabasa Epakati uye Mhedzisiro
- Kana jenareta kana mota ichishanda, kusawirirana mumunda wemagineti (senge mipata yemhepo isina kuenzana kana kusiyana kwe coil impedance) kunogona kukonzera shaft voltage mu rotating shaft. Kana shaft voltage ikatyoka nepa bearing oil film, inogona kugadzira shaft current, zvichikonzera shaft bearing electrolysis, lubricant degradation, uye kutotadza kushanda kwe bearing.
- Morteng grounding carbon brushes inopfupisa rotor shaft kuenda kumudziyo wemuchina, ichitsausa shaft currents kuenda pasi uye ichidzivirira kuti isayerere nemumabearings. Semuenzaniso, majenareta makuru anowanzoisa grounding carbon brushes kumagumo eturbine, nepo excitation end bearings akaiswa insulating pads, zvichigadzira classic 'excitation end insulation + turbine end grounding' configuration.
II. Maitiro Akajairika Ekushandisa
-Majenereta emagetsi anodziya/emvura: Mabhurashi ekabhoni anodzika pasi eMorteng anoiswa pamucheto weturbine, pamwe chete nemabheyaringi anodziya pamucheto wekuburitsa, kubvisa voltage yemagnetic induction shaft inobuda. Semuenzaniso, mumajenereta emagetsi anodziya, mabheyaringi anotenderera anovimba chete nefirimu remafuta rakatetepa kuti adzivise kudziya, uye kudzika mabhurashi ekabhoni kunogona kudzivirira electrolysis yemagoko emagetsi anodziya.
-Maturbine emhepo: Anoshandiswa pakugadzira majenareta kana masisitimu ekudzivirira kukwira kwemhepo, zvinhu zvinowanzo sarudzwa kubva ku graphite yesimbi (yakavakirwa nemhangura/sirivha), iyo inopa conductivity yakanyanya, kuramba kupera, uye kuramba simba remagetsi kwenguva pfupi.
-Mota dzine simba guru remagetsi/dzinoshanduka-shanduka: Idzi dzine njodzi huru yekukwira kwemagetsi emugodhi. Semuenzaniso, Tonghua Power Generation Company yakaisa mabhurashi ecarbon anodzivirira pasi pamucheto wemotokari yefeni huru, ichishandisa maspring anomanikidzwa nguva dzose kuti isanyanya kukwira, nokudaro ichigadzirisa dambudziko rekuti mabheyari ekutanga aisagona kuvhara magetsi emugodhi zvachose.
-Kutakurwa kwechitima: Mumamota emagetsi anodhonza mota kana madhiziri, mabhurashi ecarbon anodzika pasi anobvisa kuunganidzwa kwemagetsi asingachinji panguva yekushanda, anodzivirira mabheringi, uye anochengetedza kugadzikana kwehurongwa hwemagetsi.
Nguva yekutumira: Nyamavhuvhu-01-2025
