Bezmennikova L. Diagnosing of power transformers operating conditions operation of rural consumer substantions

Object - is the heating processes and thermal expense of power transformer isolation resource in operating terms. A purpose - is the increase of power transformers work operating indexes of rural consumer substations by objective functional their diagnosing on the base of transformers heating processes mathematical model. Methods - the power transformer heating processes were explored with the use of substitution thermal charts, operator method of differential equalizations decision, matrix calculation; the theoretical dependences calculations and experimental data processing were conducted mathematical and statistical method with use of the "Microsoft Office" and the "Maple 9,5" software package. Novelty - got further development is the power transformer heating theory as heterogenic system by comparison to nominal working regimes at the symmetric and asymmetrical overloads and additional current action, that characteristic for the agro industrial complex specific terms; dependences for determinationof equivalent parameters of power transformer substitution thermal chart with the use idling experiments and short circuit are first got; the operating modes functional diagnosing model of power transformer operations taking into account operating influences is developed. Results - the power transformer functional diagnosing device on the base of the microprocessor system is developed witch is inculcated in Primorskom RES Zaporozhian region and in the Tyachevskom RES Zakarpatskoy region. Industry - is agricultural production.