Faults Nyob rau hauv Distribution Transformer
Distribution Transformer Faults: Common Causes and Prevention Measures
Kev faib tawm transformers ua lub luag haujlwm tseem ceeb hauv kev sib kis thiab kev faib hluav taws xob, tshwj xeeb tshaj yog rau cov qib qis qis. Hmoov tsis zoo, cov hloov pauv no tseem ua rau muaj qhov tsis zoo, uas tuaj yeem ua rau muaj kev cuam tshuam loj hauv lub zog hluav taws xob thiab tseem ua rau hluav taws kub thiab tawg. Hauv tsab xov xwm no, peb yuav qhia txog qee qhov kev ua txhaum uas tshwm sim hauv cov khoom siv hluav taws xob faib khoom thiab qhia qee qhov kev tiv thaiv los txo lawv qhov cuam tshuam.
1. Overloading: Qhov no yog ib qho ntawm feem ntau ua rau transformer tsis ua hauj lwm. Overloading tshwm sim thaum lub transformer yuav tsum tau muab tam sim no ntau tshaj li nws rated peev. Overloading tuaj yeem ua rau overheating ntawm winding, uas ua rau rwb thaiv tsev tawg thiab nws thiaj li ua rau transformer tsis ua hauj lwm. Txhawm rau tiv thaiv overloading, transformers yuav tsum tau nruab nrog lub peev xwm tsim nyog kom haum raws li qhov yuav tsum tau ua.
2. Short Circuit: Ib qho luv luv tshwm sim thaum ob los yog ntau dua conductors tuaj rau hauv kev sib cuag, tsim kom muaj kev tiv thaiv tsawg. Thaum qhov no tshwm sim, ib tug loj tam sim no ntws los ntawm lub transformer winding, uas yuav ua rau nws overheat thiab poob. Txhawm rau tiv thaiv luv luv, transformers yuav tsum tau nruab nrog cov rwb thaiv tsev tsim nyog thiab kev tiv thaiv cov khoom siv xws li fuses thiab Circuit Court breakers.
3. Hluav taws xob surges: hluav taws xob surges yog tam sim ntawd nce nyob rau hauv voltage uas yuav ua rau lub transformer winding rwb thaiv tsev puas thiab ua rau nws tsis ua hauj lwm. Surges tuaj yeem tshwm sim vim xob laim lossis hluav taws xob hloov pauv, thiab tuaj yeem txo qis los ntawm kev txhim kho cov khoom siv tiv thaiv hluav taws xob.
4. Roj Leakage: Fais fab transformers muaj roj rau rwb thaiv tsev thiab txias lub hom phiaj. Cov roj xau tuaj yeem tshwm sim vim kev laus ntawm gaskets lossis kev puas tsuaj rau lub tshuab hloov pauv. Cov roj xau tuaj yeem ua rau hluav taws kub thiab tawg. Kev saib xyuas tsis tu ncua thiab hloov cov khoom siv tsis tu ncua tuaj yeem tiv thaiv cov roj to.
5. Humidity: Cov av noo siab nyob rau hauv lub transformer tuaj yeem ua rau rwb thaiv tsev tawg thiab txo nws txoj sia. Cov av noo tuaj yeem nkag mus rau hauv lub transformer los ntawm kev puas tsuaj gaskets lossis los ntawm kev teeb tsa tsis raug. Txhim kho qhov hloov pauv hauv qhov chaw qhuav thiab qhov cua zoo tuaj yeem pab tiv thaiv qhov no.
Hauv kev xaus, kev faib tawm ntawm cov khoom siv hluav taws xob tuaj yeem ua rau muaj kev puas tsuaj loj rau cov tshuab hluav taws xob thiab lawv cov neeg siv. Kev tiv thaiv kev ntsuas uas tau hais los saum toj no yog qhov tseem ceeb kom tsis txhob muaj qhov yuam kev no thiab xyuas kom qhov kev ua tau zoo ntawm transformers. Kev saib xyuas tsis tu ncua, hloov kho cov hloov pauv qub, thiab siv cov cuab yeej tiv thaiv yuav mus ntev hauv kev ua kom muaj kev nyab xeeb thiab kev ntseeg siab ntawm transformers.
