The Technique And Application Of Online Insulation Monitoring Of HV Capacitive Equipment

For the timely detection of equipment defects, to reduce the workload of regular maintenance, updating online monitoring technology, this paper study two online monitoring technology of the absolute value method and the relative value method, put the online monitoring system into application which use the two methods.Through analysis of running test data, and comparing the advantages and disadvantages of the two models, the author find out that the online monitoring which using the relative value technology has more advantages:the test data is more stable, and has better comparability with the regular testing's, the pre-invested is fewer than the online monitoring which using the absolute value technology; So that, it has better prospect in Beijing power grid. Besides, to avoid incorrect outcome, the author analyzes the influence factors of environment temperature, atmospheric humidity which can affect the test date. Based on the results, the author bring out the future research directions, which will help the online monitoring a better development.