The reliability evaluation of electric power faciliti es is a major requirement in the imposed complex. Some 
power systems have several accidents an year, and annual shortage for several billion kilowatt-hour of electricity as 
the result of accidents. Because of high failure rate ce rtain types of equipment and facilities assessment of the 
reliability and search for the ways of improving reliability are the top priorities. 
 
КазНТУ им. К.И. Сатпаева                                                                                         Поступила 10.01.11