Buku Lotsogolera ku Transformer Electrostatic Shields (E-shields)

Kodi chishango chamagetsi (e-shield) n'chiyani?
Chishango chamagetsi ndi pepala lopyapyala lopanda maginito. Chishangocho chingakhale cha mkuwa kapena aluminiyamu. Pepala lopyapyala ili limapita pakati pa ma windings oyambira ndi achiwiri a transformer. Pepalalo mu coil iliyonse limalumikizana pamodzi ndi kondakitala imodzi yomwe imalumikizana ndi chassis ya transformer.

Kodi ma E-shields amachita chiyani mu ma transformer?
Zitetezo za magetsi zimatumiza kusokonezeka kwa magetsi koopsa kutali ndi ma coil a transformer ndi zamagetsi zomwe zili m'makina amagetsi. Izi zimateteza transformer ndi makina olumikizidwa nayo.
Tiyeni tiwone izi mwatsatanetsatane kuyambira ndi zomwe E-shields zimateteza.

Kuchepetsa mphamvu
Ma circuits ambiri amagetsi amakono amakumana ndi ma spikes osakhalitsa komanso phokoso la mode. E-shield yokhazikika imachepetsa (imachepetsa) kusokonezeka kumeneku.

Chithunzi chomwe chili pamwambapa kumanzere chikuwonetsa kukwera kwamagetsi kwa nthawi yayitali. Kuwonjezeka kwakukulu kwa magetsi operekera magetsi kumachitika chifukwa cha zida wamba zaofesi monga makompyuta kapena ma photocopier. Ma inverter nawonso ndi gwero lofala la ma spikes a nthawi yayitali. Chithunzi chomwe chili kumanja chikuwonetsa chitsanzo cha phokoso la mode mu circuit yamagetsi. Phokoso la mode limapezeka kwambiri m'ma circuit amagetsi. Makina opanda waya omwe ali ndi chitetezo chosayenera cha chingwe nthawi zambiri amavutika ndi phokoso la mode.
Tsopano tiyeni tiwone momwe E-shield imachitira ndi zosokoneza izi.

Kulumikiza Moyenera
Chishango cha E chokhazikika chimachepetsa kulumikizana kwa capacitive pakati pa ma windings oyambira ndi achiwiri. M'malo molumikizana ndi ma windings oyambira, ma windings oyambira amagwirizana ndi E-shield. Chishango cha E chokhazikika chimapereka njira yotsika ya impedance yopita pansi. Kusokonezeka kwa magetsi kumayendetsedwa kutali ndi ma windings oyambira. Izi zimagwiranso ntchito kuchokera kumapeto ena a transformer (yachiwiri kupita ku yoyamba).

Kukwera kwa nthawi yochepa ndi phokoso la mode kumatha kuwononga ma transformer ndi zida zina zamagetsi. Chishango chamagetsi pakati pa ma coil amagetsi okwera ndi otsika amagetsi chimachepetsa zoopsa zotere. Chofunika kwambiri popereka mphamvu ku zamagetsi ofunikira.

Zitsanzo za Transformers zomwe zimagwiritsa ntchito E-shield
Zosinthira za Dzuwa ndi Mphepo
Kusokonezeka kwa harmonic ndi kusintha kwapadera kuchokera ku ma inverter a dzuwa kumasamutsidwira ku gridi yamagetsi. Kusokonezeka kwa magetsi kumeneku kumapanga zotsatira zofanana ndi za impulse mu HV winding yomwe imadyetsa gridi. Kupindika kwamagetsi kwakanthawi kumbali yamagetsi kumathanso kupita ku inverter. Zochitika zamagetsi ochulukirapo izi zitha kuwononga zigawo zomvera za inverter. Zitetezo za ma e-shields zimateteza transformer, grid, ndi inverter.
Dziwani zambiri zokhudza kukula kwa transformer ya solar ndi zofunikira pa kapangidwe kake.

Thamangitsani Chosinthira Chodzipatulas
Ma transformer odzipatula amapangidwa kuti athe kupirira kusokonezeka kwa ma voltage okwera kwambiri (harmonics). Kusokonezeka koteroko kumachitika chifukwa cha zida monga ma motor drive (kapena ma VFD). Chifukwa chake mawu oti "drive" m'dzina lake ndi awa. Kuphatikiza pa ma harmonics, ma motor drive amathanso kuyambitsa kusokonezeka kwa ma voltage ena (monga phokoso la mode). Apa ndi pomwe E-shield imagwira ntchito. Ma transformer odzipatula amaphatikizapo E-shield imodzi pakati pa ma HV ndi ma LV coils. Zishango zingapo zingagwiritsidwenso ntchito. Ma E-shields amatha kuyikidwa pakati pa ma coil amkati ndi ziwalo zapakati.
Mapulogalamu omwe ali ndi vuto la magetsi (monga kukwera kwa magetsi pang'ono ndi phokoso la mode) amapindula ndi transformer yokhala ndi E-shield. E-shields ndi zotsika mtengo, ndipo zimapereka phindu lalikulu pa ndalama zomwe zimayikidwa pamene mavuto a mphamvu ndi oopsa.