MaTransformer Ekugovera: Zvikamu Zvikuru uye Nheyo dzeKushanda

Transformer yekugoveras inoshanda senzvimbo yakakosha mumagrid emagetsi emazuva ano, ichideredza zvinobudirira mitsetse yemagetsi ine simba guru (kazhinji 11-33 kV) kuenda kumavoltage anoshanda (120-480 V) evatengi vekugara, vemabhizinesi, uye vemaindasitiri.

. Midziyo iyi yemagetsi isingachinji inoshanda kuburikidza nemisimboti yekutanga yekushandiswa kwemagetsi uku ichisanganisira maficha epamusoro einjiniya kuti ive yakavimbika uye yakachengeteka.

​1. Makanika Ekushanda​
Maitiro ekushandura magetsi anoshandisa electromagnetic induction pakati pema "primary" ne "secondary windings". Kana magetsi achichinjana achipfuura nepa "high-voltage primary winding", anogadzira "magnetic flux" inochinja-chinja panguva mukati me "laminated silicon steel core". Kubatana uku kwe "magnetic coupling" kunokonzera "proportional voltage" mu "secondary winding", zvichienderana ne "turns ratio" (N₁/N₂) zvichienderana neFaraday's Law of Induction.

Hukama hwemasvomhu hunogona kuratidzwa seizvi:
V₁/V₂ = N₁/N₂ = k (chiyero chekutendeuka)
I₁/I₂ = N₂/N₁ (chiyero chemazuva ano chakapesana nechiyero chevoltage)

​2. Kugadzira Zvivako​
Maitiro emazuva ano ane magadzirirwo akagadziridzwa:

• ​Musangano Mukuru: Zvidimbu zvesimbi zvesilicon zvakanamirwa nezviyo zvakacheneswa zvinoderedza kurasikirwa kwesimba remagetsi uku zvichichengetedza simba remagineti
• ​Masisitimu Ekutonhodza:

• Mhando dzinonyudzwa mumafuta (dzinowanzo shandiswa pakuisa zvinhu panze) dzinoshandisa mafuta etransformer pakuchengetedza kupisa uye kudzivirira kupisa kwemagetsi.
• Transformer yerudzi rwakaomas (yakakodzera kushandiswa mumba) shandisa kutonhodza kwemhepo nekuchengetedzwa kwemoto kwakawedzerwa
  • ​Nzira dzekudzivirira: Zvinodzivirira kukwira kwemhepo zvakabatana, zvinodzoreredza kupisa, uye mavharuvhu ekuderedza kumanikidzwa zvinovimbisa kuchengetedzeka kwekushanda kubva pakukwira kwemvura uye zvinoshungurudza nharaunda.

​3. Hunhu hweKushanda​

• ​Kubudirira Kwemhando: Inobudirira ne95-99% pasi pemamiriro ekutakura akakodzera kuburikidza nekuderedza kurasikirwa kwepakati (hysteresis uye eddy currents)
• ​Sarudzo dzeKugona: Inowanikwa kubva pa50 kVA kusvika ku25,000 kVA, ine magadzirirwo madiki anogonesa kuisa matanda kana mapad-mounted.
• ​Mutemo weVoltage: Tekinoroji yepamusoro yeOLTC (On-Load Tap Changer) inobvumira kudzora voltage ye±10% pasina kukanganisa masevhisi

​4. Kuvandudzwa Kwekuchengetedza​
Zvigadzirwa zvemazuva ano zvine zvikamu zvakawanda zvekudzivirira:

• Dziviriro yakawandisa kuburikidza nemifananidzo yekupisa uye masensa ekupisa anotenderedza
• Kuganhurirwa kwemagetsi enguva pfupi ipapo uchishandisa mafusi anoganhurira magetsi
• Kudzvinyirira kwekuwedzera kwesimba kuburikidza nesimbi-oxide varistors (MOVs) uye kudzivirirwa kwemhepo

​5. Zvaunofanira Kufunga Nezvekuchengetedza​
Kunyange zvazvo zvisingade kugadziriswa zvakanyanya kana tichienzanisa nemichina inotenderera, kuongororwa nguva nenguva kunotarisa pane:

• Kuyedzwa kwesimba remagetsi emafuta anodziisa (kune marudzi anonyudzwa mumafuta)
• Kutarisa kwechikamu chekubuda kwemhepo mumhepo ine simba rakawanda
• Kuongororwa kwemamiriro eBushing uchishandisa infrared thermography

Mhinduro idzi dzakagadzirwa dzinoratidza kusanganiswa kwemitemo yekare yemagetsi nemagetsi emazuva ano, zvichiita kuti simba rigoverwe zvakanaka uye zvakavimbika muzvivakwa zvakasiyana-siyana zvegrid. Kune zvishandiso zvakasiyana-siyana zvakaita sekubatanidza simba rinogona kushandiswazve kana masisitimu egrid akangwara, magadzirirwo epamusoro ane amorphous metal cores anowedzera kushanda kuburikidza nekurasikirwa kwakanyanya pasina mutoro.