OPERATION OF LINE TRANSFORMERS UPON ATTAINMENT OF MAXIMUM PERMISSIBLE PARAMETERS OF WEAR OF WINDING INSULATION

摘要

Possible mechanisms of failure of insulation of windings of line transformers after exhaustion of their service life are considered. Conditions of strength of paper insulation and conditions of operation of screw-type insulation under the action of short-circuit currents are analyzed. Recommendations are formulated for the use of line transformers with exhausted insulation life.