Nyob rau hauv lub substations tseem ceeb ntawm lub nroog rail transit power supply systems, peb -theem roj-immersed transformers feem ntau yog siv. Roj-immersed transformers feem ntau muaj cov tub ntxhais, windings, roj tank, voltage regulating device, radiator, oil conservator, gas relay, insulating bushings, and explosion-cov kav dej pov thawj.
1. Core Cov tub ntxhais yog tsim los ntawm cov ntawv sib dhos silicon steel nrog zoo sib nqus permeability, tsim lub kaw sib nqus flux circuit. Ob qho tib si thawj thiab theem nrab windings ntawm lub transformer yog qhov txhab ntawm lub hauv paus.
Transformer cores tau muab faib ua ob hom: tub ntxhais-hom thiab plhaub- hom. Tam sim no, cov transformers siv dav tshaj plaws yog cov tub ntxhais - hom. Ib tug tub ntxhais - hom core muaj ib tug core kem thiab ib tug quab. Lub hauv paus tseem ceeb ntawm cov roj-immersed transformer muaj cov roj txuas sab hauv kom txias cov tub ntxhais, ua kom cov roj ncig thiab txhim kho cov cua sov.
2. Cuab cua
Windings, tseem hu ua coils, yog cov khoom siv hluav taws xob ntawm lub tshuab hluav taws xob, ua los ntawm tooj liab lossis txhuas hlau qhov txhab rau hauv ntau txheej txheej ntawm cov duab cylindrical. Thawj thiab theem nrab windings yog concentrically raug mob ntawm cov tub ntxhais hlau. Rau kev rwb thaiv tsev, qhov qis-voltage winding feem ntau yog sab hauv thiab siab -voltage winding yog sab nraud. Insulating cov ntaub ntawv qhwv ib ncig ntawm cov conductors los xyuas kom meej rwb thaiv tsev ntawm conductors thiab nruab nrab ntawm conductors thiab av.
3. Roj Tank
Lub tank roj yog lub plhaub sab nraud ntawm cov roj-immersed transformer. Nws txoj haujlwm, dua li tuav cov roj, yog los tsev lwm yam khoom.
4. Voltage Regulating Device
Lub tshuab hluav taws xob tswj hluav taws xob tau teeb tsa los xyuas kom muaj kev ruaj ntseg ntawm lub tshuab hloov hluav taws xob theem nrab. Thaum cov khoom siv hluav taws xob hloov pauv hloov pauv, qhov ntsuas hluav taws xob tswj cov cuab yeej kho qhov hloov pauv tus kais hloov pauv kom ntseeg tau tias qhov ntsuas hluav taws xob ruaj khov thib ob. Cov cuab yeej tswj hluav taws xob tau muab faib ua rau ntawm -load kais hloov pauv thiab tawm -load kais hloov pauv.
5. Radiator
Lub radiator yog mounted rau ntawm lub tank phab ntsa, txuas nrog lub tank ntawm cov kav dej nyob rau sab saum toj thiab hauv qab. Thaum muaj qhov sib txawv ntawm qhov kub thiab txias ntawm cov roj kub, convection tam sim no yog tsim los ntawm lub tshuab radiator, txias cov roj ua ntej nws ntws rov qab mus rau lub tank, yog li txo cov roj transformer kub. Txhawm rau txhim kho kev ua kom txias, nws tus kheej - cua txias, yuam cua txias, thiab yuam dej txias tuaj yeem siv.
6. Roj Conservator
Cov roj conservator, tseem hu ua cov roj tank, muab qhov tsis zoo tiv thaiv thermal expansion thiab contraction ntawm transformer roj, ua rau cov roj theem nce los yog poob. Nws ua kom lub tank puv roj thiab txo qhov chaw sib cuag ntawm cov roj thiab cua, ua kom oxidation qeeb.
7. Gas Relay
Cov roj relay, tseem hu ua methane relay, yog cov khoom siv tiv thaiv tseem ceeb rau kev hloov pauv sab hauv. Nws yog ntsia nyob rau hauv nruab nrab ntawm cov roj yeeb nkab txuas lub tank thiab cov roj conservator. Thaum muaj teeb meem loj nyob rau hauv lub transformer, cov roj relay activates lub Circuit Court breaker tripping circuit; Thaum ib qho kev ua txhaum me me tshwm sim, cov roj relay qhib qhov teeb meem txhaum cai.
8. Insulating Bushings High-voltage thiab low-voltage insulating bushings nyob rau sab saum toj ntawm lub tank transformer. Roj-immersed transformers feem ntau siv porcelain insulating bushings. Lub luag haujlwm ntawm insulating bushings yog los tswj cov rwb thaiv tsev zoo ntawm qhov siab -voltage thiab low-voltage winding leads thiab lub tank, thiab kom ruaj ntseg cov coj.
9. Kev tawg-pov thawj Yeeb Nkab Qhov tawg- cov yeeb nkab pov thawj, tseem hu ua lub qhov cua nyab xeeb, tau nruab rau ntawm lub tank hloov pauv, thiab nws qhov hluav taws xob tau kaw nrog lub iav tawg- pov thawj membrane. Thaum muaj qhov ua txhaum loj hauv lub tshuab hloov pauv thiab cov roj relay ua haujlwm tsis zoo, cov roj hauv lub tank tawg los ntawm cov iav tawg- cov ntaub ntawv pov thawj thiab raug tshem tawm ntawm qhov chaw nyab xeeb, tiv thaiv kom tsis txhob tawg.
