IiTransformers zoSasazo: Izinto eziphambili kunye neMigaqo yokuSebenza

Isiguquli soSasazoIi-s zisebenza njengeziseko ezibalulekileyo kwiigridi zamandla zanamhlanje, zinciphisa ngokufanelekileyo imigca yokudlulisela amandla aphezulu (ngesiqhelo i-11-33 kV) ukuya kwiivolthi zenkonzo ezisebenzisekayo (120-480 V) kubathengi abahlala kwiindawo zokuhlala, kurhwebo, nakwimizi-mveliso.

Ezi zixhobo ze-electromagnetic ezingashukumiyo zisebenza ngemigaqo esisiseko yokungeniswa kwe-electromagnetic ngelixa zifaka iimpawu zobunjineli obuphambili ukuze kuqinisekiswe kwaye kukhuseleke.

​1. Iinkqubo Zokusebenza​
Inkqubo yokuguqulwa kwe-voltage ixhomekeke kwi-electromagnetic induction phakathi kwe-primary windings kunye ne-secondary windings. Xa i-alternating current idlula kwi-high-voltage primary winding, ivelisa i-magnetic flux etshintsha-tshintsha ngexesha ngaphakathi kwe-laminated silicon steel core. Le magnetic coupling ibangela i-voltage elinganayo kwi-secondary winding, emiselwa yi-turns ratio (N₁/N₂) ngokwe-Faraday's Law of Induction.

Ubudlelwane bezibalo bungabonakaliswa ngolu hlobo:
V₁/V₂ = N₁/N₂ = k (umlinganiselo wokujika)
I₁/I₂ = N₂/N₁ (umlinganiselo wangoku ochaseneyo nomlinganiselo wevolthi)

​2. Uyilo lweZakhiwo​
Ukuphunyezwa kwale mihla kubonisa uqwalaselo oluphuculweyo:

• ​Indibano ePhambili: Iintsimbi zesinyithi zesilicon ezijolise kwingqolowa ezilaminethiweyo zinciphisa ilahleko yamandla e-eddy ngelixa zigcina ukuvuleka kwemagnethi
• ​Iinkqubo zokupholisa:

• Iintlobo ezifakwe kwi-oyile (ezixhaphakileyo kwiindawo zangaphandle) zisebenzisa i-transformer oil ukulawula ubushushu kunye nokufakelwa kwe-dielectric
• Isiguquli sohlobo olomileyos (ifanelekile ukusetyenziswa ngaphakathi) sebenzisa ukupholisa umoya kunye nokhuseleko oluphuculweyo lomlilo
  • ​Iindlela zoKhuselo: Izithinteli zokuxhuzula ezidityanisiweyo, ii-thermal relay, kunye neevalvu zokunciphisa uxinzelelo ziqinisekisa ukhuseleko lokusebenza ngokuchasene nemisinga engaphezulu kunye nezinto ezibangela uxinzelelo lokusingqongileyo.

​3. Iimpawu zokusebenza​

• ​Uluhlu Lokusebenza Kakuhle: Ifikelela kwi-95-99% yokusebenza kakuhle phantsi kweemeko ezifanelekileyo zokulayisha ngokunciphisa ilahleko eziphambili (i-hysteresis kunye nemisinga ye-eddy)
• ​Iinketho zoBuchule: Ifumaneka ukusuka kwi-50 kVA ukuya kwi-25,000 kVA, kunye noyilo oluncinci oluvumela ukufakwa kweepali okanye ukufakwa kweephedi
• ​Ulawulo lweVoltage: Itekhnoloji ye-OLTC (On-Load Tap Changer) ephucukileyo ivumela ulawulo lwe-±10% ye-voltage ngaphandle kokuphazamiseka kwenkonzo

​4. Uphuhliso loKhuseleko​
Iiyunithi zanamhlanje zineeleya ezininzi zokukhusela:

• Ukhuseleko lokuthwala umthwalo omninzi ngokusebenzisa imifanekiso yobushushu kunye neenzwa zobushushu ezijikelezayo
• Ukunciphisa umbane we-current-short-circuit ngoko nangoko kusetyenziswa ii-fuses ezithintela umbane
• Uxinzelelo lokunyuka ngamandla ngokusebenzisa ii-varistors ze-metal-oxide (MOVs) kunye nee-windings ezikhuselweyo

​5. Izinto ekufuneka ziqwalaselwe kulondolozo​
Nangona kufuneka ulondolozo oluncinci xa kuthelekiswa noomatshini abajikelezayo, uhlolo lwamaxesha ngamaxesha lugxila koku kulandelayo:

• Uvavanyo lwamandla e-dielectric ye-insulating oil (kwiintlobo ezintywilisiweyo kwi-oyile)
• Ukubeka esweni ukukhutshwa okungaphelelanga kwi-windings ye-voltage ephezulu
• Uvavanyo lwemeko ye-bushing kusetyenziswa i-infrared thermography

Ezi zisombululo zenziwe ngendlela eyiyo zibonisa ukuhlanganiswa kwemigaqo ye-electromagnetic yakudala kunye ne-elektroniki yamandla yanamhlanje, ukuqinisekisa ukusasazwa kwamandla okusebenzayo nokuthembekileyo kuzo zonke izakhiwo zegridi ezahlukeneyo. Kwizicelo ezikhethekileyo ezifana nokuhlanganiswa kwamandla avuselelekayo okanye iinkqubo zegridi ezikrelekrele, uyilo oluphambili oluquka ii-metal cores ezingafaniyo luphucula ukusebenza ngokulahlekelwa kakhulu komthwalo.