Improving the accuracy of diagnosing transformer equipment in an emergency state
On the appearance of damage in transformers, the gas protection triggers on a “signal” and/or a “blackout”. A number of regulatory documents established requirements for checking the presence or absence of gas in a gas relay after each actuation of gas protection, with its subsequent analysis of the flammability and component composition. According to the results of the over a ten-year period analysis of one electric power industry entity, gas protection was installed at 3% of transformers from their total fleet (or an average of 5 transformers per year). Evaluation of the subject operational personnel actions showed the presence of significant problems of the organizational and methodical plan in terms of ensuring the work on the selection and analysis of gas from the gas relay, ultimately affecting the decisions quality, errors in which lead to serious problems. The foregoing indicates the need to analyze and search for new technical solutions aimed at improving the efficiency of gas protection of transformers in modern energy industry.