Abstract
The paper presents the results of practical application of an instrumentation and analytical system (IAS) for X-ray control of minimum oil and SF6 circuit breakers. The capabilities of IAS are described and the technology for its implementation is given. It is shown that the proposed technology makes it possible to control the contact group (moving and fixed contacts) and elements of the moving contact control system of circuit breakers without bus bar dismantling, oil drain and disassembly of the circuit breaker poles. The paper also presents the assessment of the reliability indicators of high-voltage circuit breakers, which confirms the prospects for introducing the developed X-ray inspection technology.
Highlights
More than four thousand VМТ-110 minimum oil circuit breakers are operated at the power facilities of the Russian Federation
Taking into account that equipment reliability indicators are determined by the duration, including regular maintenance of equipment, the preferred control methods are those that take minimal time to prepare and carry out
To conclude, according to our estimations based on the data analysis of VMT-110 circuit breakers failures since 2014, the use of the developed instrumentation and analytical system (IAS) will reduce the failure rate from 0.0215 1 per year to 0.0191 1 per year, which corresponds to a decrease in accidents by more than 10%
Summary
More than four thousand VМТ-110 minimum oil circuit breakers are operated at the power facilities of the Russian Federation. The purpose of this work is to study the capability and evaluate the effectiveness of the application of X-ray control method for high-voltage equipment using the example of monitoring VMT-110 minimum oil circuit breakers at the operation site without dismantling and disassembling. To achieve this goal, the tasks of determining the informativeness of the proposed technology and checking its feasibility in the field conditions were solved
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