Power Transformen Short-Circuit Strength - Requirements, Design, and Demonstration

Metrological Estimation of Measurement Error with the Determination of the Technical State of Substation Electrical Equipment

“…1 is given the classification of reasons and forms of damages, and also the schematic of the technical diagnosis of the transformer-reactor oil-filled equipment. (Lech and Tyminski, 1966;McNutt et al, 1970;Balakrishnan, 1989;Malewski and Khrennikov, 1995;Khrennikov, 1999;Khrennikov, 2000). On a quantity and the variety the methods of the diagnosis of the oil-filled equipment several times exceed the volume of the methods of diagnosis of overhead transmission lines, this is caused historically by closer attention to the reliability of the oil-filled equipment; by the same is caused the presence of a large quantity of finished effective systems "on-line" monitoring of the transformer equipment, for example, of such as control systems of bushings of R-1500, system of the checking of the transformer oil Hydran, TRANSFIX, TIM, TDM.…”

“…The development of the methods of diagnosis, especially used during the TREE service, will make it possible to switch over from the system of regular overhauls to repair system due to the technical state (TS) (Lech and Tyminski, 1966;McNutt et al, 1970).…”

“…The utilized methods and tools with working of the values, obtained with the direct measurements on the equipment, practically did not change (they were not improved) in the last 20 years (McNutt et al, 1970;Khrennikov, 2005;Khrennikov and Goldshtein, 2007;Khrennikov, 2009;Khrennikov et al, 2010;Khrennikov and Skladchikov, 2014). …”

“…This occurs because the quality of the estimation of technical condition state (TCS) directly influences the reliability of the work of electrical equipment, the effectiveness of the functioning of company, and, as a result, to the investment FGC Company (McNutt et al, 1970;Balakrishnan, 1989;Fogelberg and Girgis, 1994;Khrennikov, 1994;Khrennikov, 2000).…”

“…To make decisions and to evaluate controlling influences in the Company possible being only based on TCS (McNutt et al, 1970;Malewski and Khrennikov, 1995;Khrennikov, 1999;Khrennikov, 2005;Khrennikov et al, 2010;Khrennikov and Skladchikov, 2014).…”