Nduzi maka Transformer Electrostatic Shields (E-shields)

Gịnị bụ E-shield?
Ihe mkpuchi electrostatic bụ mpempe akwụkwọ na-eduzi ihe na-abụghị magnetik. Ihe mkpuchi ahụ nwere ike ịbụ ọla kọpa ma ọ bụ aluminom. Mpempe akwụkwọ a dị gịrịgịrị na-aga n'etiti windings nke transformer mbụ na nke abụọ. Mpempe akwụkwọ dị na coil ọ bụla na-ejikọ ọnụ na otu onye nduzi nke na-ejikọ na chassis transformer.

Gịnị ka E-shields na-eme na transformers?
E-shields na-ewepụ nsogbu voltaji na-emerụ ahụ site na eriri transformer na eletrọniki dị nro na sistemụ eletriki. Nke a na-echebe transformer na sistemụ ejikọtara na ya.
Ka anyị leba anya na nke a nke ọma site n'ihe nchekwa E-shields na-echebe megide.

Mbelata
Ọtụtụ sekit eletriki ọgbara ọhụrụ na-enwe obere mkpọtụ na mkpọtụ ụdị. Ihe mkpuchi E nke ala na-ebelata (na-ebelata) nsogbu ndị a.

Foto dị n'elu n'aka ekpe na-egosi mmụba voltaji oge a na-ahụkarị. Ụdị mmụba dị nkọ a na voltaji ọkọnọ na-esi na ngwa ọrụ nkịtị dịka kọmputa ma ọ bụ fotokopi. Inverters bụkwa isi iyi nke spike ndị na-adịru nwa oge. Foto dị n'aka nri na-egosi ihe atụ nke mkpọtụ mode na sekit eletriki. Mkpọtụ mode bụ ihe a na-ahụkarị na sekit eletrọniki. Sistemụ waya na-adịghị mma nke nwere nchekwa eriri na-ezighi ezi na-enwekarị mkpọtụ mode.
Ugbu a, ka anyị leba anya n'otú E-shield si emeso nsogbu ndị a.

Njikọ Capacitive
E-shield nke e ji ala mee na-ebelata njikọ capacitive n'etiti windings mbụ na nke abụọ. Kama ijikọ ya na winding nke abụọ, windings mbụ na-ejikọ na E-shield. E-shield nke e ji ala mee na-enye ụzọ mgbochi dị ala na-aga ala. A na-ebugharị nsogbu voltaji gaa na winding nke abụọ. Nke a na-arụkwa ọrụ site na nsọtụ nke ọzọ nke transformer (nke abụọ gaa na nke mbụ).

Mkpọtụ dị mkpụmkpụ na mkpọtụ ụdị nwere ike imebi transformers na ngwa eletriki ndị ọzọ. Ihe nchekwa electrostatic dị n'etiti nnukwu voltaji na obere voltaji na-ebelata ihe egwu ndị dị otú ahụ. Ihe dị mkpa a na-atụle mgbe a na-enye ike na ngwa eletrọniki ndị dị nro.

Ihe atụ nke Transformers ndị na-eji E-shield
Transformers Anyanwụ na Ifufe
A na-ebufe nsogbu na mgbanwe pụrụ iche sitere na inverters anyanwụ na grid ọrụ. Nsogbu voltaji ndị a na-emepụta mmetụta dị ka mkpali na winding HV na-enye grid ahụ. Mkpọchi overvoltage dị mkpirikpi n'akụkụ ọrụ nwekwara ike ịgafe na inverter. Ihe omume overvoltage ndị a nwere ike imebi ihe ndị dị nro nke inverter. E-shields na-enye nchebe maka ma transformer, grid, na inverter.
Mụtakwuo maka nha na ihe achọrọ maka nhazi nke transformer anyanwụ.

Draịvụ Transformer nkewapụs
A na-arụ transformers nkewapụ ụgbọala iji nagide nsogbu voltaji dị elu (harmonics). Nsogbu ndị dị otú ahụ na-esi na ngwaọrụ dị ka draịva moto (ma ọ bụ VFDs). Ya mere, okwu ahụ bụ "draịva" n'aha ahụ. Na mgbakwunye na harmonics, draịva moto nwekwara ike ibute nsogbu voltaji ndị ọzọ (dị ka mkpọtụ ọnọdụ). Nke a bụ ebe E-shield na-abata. Transformers nkewapụ ụgbọala gụnyere opekata mpe otu E-shield n'etiti coils HV na LV. Enwere ike iji ọtụtụ ọta. Enwere ike itinye E-shields n'etiti coils dị n'ime na aka isi.
Ngwa ndị nwere nsogbu voltaji (dịka obere ihe na mkpọtụ ụdị) na-erite uru site na transformer nwere E-shield. E-shields adịghị ọnụ ala, ha na-enyekwa nnukwu uru na itinye ego ebe nsogbu ịdị mma nke ike bụ ihe iyi egwu.