Open AccessInfluence of indicators of quality of electric power on reliability of work of power transformer equipment of power plants and distribution networks
Author(s) -
A. V. Strizhichenko,
Elena Zenina,
М. М. Султанов,
O I Zhelyaskova
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1683/4/042039
Subject(s) - reliability engineering , transformer , electromagnetic coil , distribution transformer , electrical engineering , automotive engineering , engineering , power quality , residual , energy efficient transformer , reliability (semiconductor) , computer science , power (physics) , voltage , physics , algorithm , quantum mechanics
The lifespan of power transformers is largely determined by the state of their internal insulation, which is prone to aging during operation, now this problem is especially relevant for the operation of power transformers that have worked out a nominal life. Direct control of internal insulation during the work is difficult due to the inaccessibility of windings for direct survey, and it is advisable to predict the residual resource for planning timely repairs. A refined model of the dependence of the speed of relative wear of the coil insulation not only on the load of the transformer, but also on the presence of asymmetry and higher harmonic components of the current is proposed