Cov ntsiab lus uas yooj yim saib tsis tau thaum lub sij hawm tu ntawm qhuav -hom sim transformers:
1. Ua ntej ntxuav cov porcelain bushing thiab casing, thiab tom qab ntawd xyuas seb lub casing, gasket thiab porcelain casing puas tawg, paug cov cim los yog cov roj hmab pads muaj hnub nyoog, seb cov cables thiab busbars puas deformed, thiab cov tawg yuav tsum tau hloov.
2. Tshawb xyuas seb qhov chaw sib tiv tauj ntawm lub tsheb npav puas huv si, qhov chaw tiv tauj yuav tsum tau muab tshem tawm cov oxide txheej thiab coated nrog lub hwj chim compound roj.
3. Xyuas seb lub hauv av ntawm lub transformer puas zoo thiab seb cov hlau hauv av puas corroded. Yog tias qhov corrosion hnyav heev, nws yuav tsum tau hloov.
4. Tighten cov hlau lead terminals, pins, grounding screws, thiab busbar screws. Yog tias lawv xoob, tshem cov ntsia hlau, lossis siv cov ntaub ntawv nyias nyias los ua cov ntaub ntawv sib cuag, lossis hloov lub caij nplooj ntoos hlav ntxhua khaub ncaws thiab cov ntsia hlau kom txog thaum kev sib cuag zoo.
5. Ntxuav cov plua plav nyob ib ncig ntawm lub tshuab hloov pauv thiab cov khoom siv, thiab xyuas seb qhov hluav taws kub - cov chaw tua hluav taws thiab qhov cua tshuab puas zoo.
6. Use a 2500V shaker to measure the insulation resistance of the high-voltage side, and compare it with the measured value of the transformer before leaving the factory. The insulation resistance should not be lower than 70 percent of the original data when leaving the factory. If it is unqualified, it should be reported in time.