Transformer casing failure treatment measures
According to the "on the prevention of power equipment accidents 25 key requirements" treatment measures;
1. For the casing oil samples are unqualified, containing acetylene gas and other defects. The measures taken are: the casing should be strictly inspected, and only put into operation after all kinds of tests are qualified, so as to avoid failure caused by human factors.
2. For casing sealing bad, water or oil leakage phenomenon. Measures taken are: through the replacement of good quality rubber gasket to maintain sealing, tighten the fastening bolts, so that the casing without leakage.
3. For the casing itself is not reasonable structure and cause head overheating and other defects. Specific measures can be used to change the transition of copper and aluminum for the silver-copper contact, thus reducing the oxidation.
4. In the process of dismantling, connecting and leading, we should pay attention to check whether the parts are well connected, the contact surface should be polished and coated with conductive paste to reduce its contact resistance. Thus eliminating the phenomenon of overheating.
Through the above analysis of the oil paper capacitor casing failure and some measures to deal with, it can be found that the formation of defects in two ways: the first is the casing itself is designed to exist in a weak link; the second is the human factor, is the installation, maintenance personnel in the operation caused by.