Title :
Testing Methods for Power Transformer Insulation
Author_Institution :
Hitachi Research Lab. Hitachi Ltd. Ibaraki, Japan
Abstract :
Long-term test of alternating current voltage in power transformers greatly contributes ot the improvement of the reliability of insulation. Many kinds of V-t characteristics are collected by experimental research, and typical V-t characteristics of a whole transformer insulation are discussed in the paper.
Keywords :
Breakdown voltage; Dielectrics and electrical insulation; Impulse testing; Insulation testing; Life testing; Oil insulation; Partial discharges; Power transformer insulation; Power transformers; System testing;
Journal_Title :
Electrical Insulation, IEEE Transactions on
DOI :
10.1109/TEI.1986.349025
