Basic Introduction To Distribution Transformers

Distribution transformer yog hais txog cov khoom siv hluav taws xob zoo li qub uas siv rau hauv kev faib khoom los hloov AC voltage thiab tam sim no raws li txoj cai ntawm electromagnetic induction thiab xa AC lub zog hluav taws xob. Suav transformer khoom feem ntau yuav muab faib ua ultra-high voltage (750KV thiab siab dua), ultra-high voltage (500KV) transformers, 220-110KV transformers, thiab 35KV thiab hauv qab transformers raws li voltage theem. Distribution transformers feem ntau yog xa mus rau lub hwj chim transformers ua hauj lwm nyob rau hauv lub tis network nrog ib tug voltage theem ntawm 10-35KV thiab ib tug muaj peev xwm ntawm 6300KVA los yog qis dua uas ncaj qha muab hwj chim rau cov neeg siv kawg.
Lub tshuab hluav taws xob faib hluav taws xob yog cov khoom siv hluav taws xob zoo li qub siv los hloov qee yam nqi ntawm AC voltage (tam sim no) rau lwm qhov lossis ntau qhov sib txawv ntawm qhov voltage (tam sim no) nrog tib zaus. Thaum alternating tam sim no yog siv rau thawj winding, alternating magnetic flux yog generated. Lub alternating magnetic flux yog induced nyob rau hauv lub thib ob winding los ntawm cov magnetic conduction nyhuv ntawm cov hlau core, uas ua rau ib tug alternating electromotive quab yuam. Qhov siab ntawm qhov thib ob induced electromotive quab yuam yog muaj feem xyuam rau tus naj npawb ntawm lem nyob rau hauv thawj thiab thib ob windings, uas yog, qhov voltage yog ncaj qha proportional rau cov lem. Lub luag haujlwm tseem ceeb yog xa hluav taws xob hluav taws xob, yog li ntawd, cov peev txheej ntsuas yog nws qhov tseem ceeb. Rated peev yog ib qho khoom siv feem ntau los sawv cev rau lub zog, uas qhia txog qhov loj ntawm lub zog xa hluav taws xob, qhia hauv kVA lossis MVA. Thaum lub ntsuas hluav taws xob raug siv rau lub tshuab hloov pauv, nws yog siv los txiav txim siab qhov ntsuas tam sim no uas tsis pub tshaj qhov ntsuas kub nce raws li cov xwm txheej teev tseg. Lub zog siv hluav taws xob ntau tshaj plaws yog lub amorphous alloy hlau core tis transformer, uas muaj qhov zoo tshaj plaws ntawm kev muaj qhov tshwj xeeb uas tsis muaj nqi poob. Txawm hais tias qhov kawg tsis muaj nqi poob tuaj yeem lav tau yog qhov teeb meem tseem ceeb uas yuav tsum tau txiav txim siab thoob plaws hauv tag nrho cov txheej txheem tsim [2]. Thaum npaj cov khoom tsim, ntxiv rau kev txiav txim siab tias amorphous alloy hlau core nws tus kheej tsis raug rau sab nraud quab yuam, nws tseem yuav tsum tau xaiv kom raug thiab tsim nyog xaiv cov yam ntxwv ntawm cov amorphous alloy thaum xam. Cov tuam txhab tsim hluav taws xob hauv tsev loj xws li TBEA, Shandong Mingda, thiab TBEA Luming Transformers.