Exploration AC electrical machines operational reliability in mining industry

Authors: Odnokopylov G. I., Bukreev V. G., Shevchuk V. A., Shilin A. A.

Annotation: Mining equipment for underground workings is subjected to constant exposure to aggressive environment (temperature changes, humidity, dust). In this regard, a large number of sudden failures occur, which are unacceptable for the mining industry due to irreparable economic losses and the danger of the worker’s lives of the staff. The article discusses the method for predicting the operational reliability of AC electrical machines in the mining industry using the Kaplan-Meier method of multiple valuation. The method allows analyzing complete and censored data. Using the example of the task of ensuring operational reliability, we consider the mechanism of the hierarchy analysis method, which allowed to determine the range of measures that can most effectively solve the problem.

Keywords: reliability of electric machines, prediction of op- erational reliability, mining industry, system analysis, survival analysis