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POLAJŽER, B., PETRUN, M., PULKO, R., GRČAR, B.
TURN-TO-TURN SHORT CIRCUITS ON TRANSFORMERS AND PROTECTION
KOMUNALNA ENERGETIKA / POWER ENGINERING, 22
This paper describes turn-to-turn short circuits on single and three-phase transformers. Measurement results are given for the developing turn-to-turn fault on a laboratory transformer. The obtained results are in complete agreement with the findings from the literature. Furthermore, criterion for a turn-to-turn three-phase transformer protection is described, which is based on a negative-sequence component of differential currents. The preliminary testing results of the discussed turn-to-turn protection are promising.
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