Abstract

In this study critical problem of voltage sag propagation through transformer winding in distribution network is taken into account. The sage propagation problem depends on the unsymmetrical fault type and winding connections of the distribution transformer. The characterization of the sage propagation is effected due to the zero sequence components. The detection of the voltage sage through sequence detection method is used to solve the problem. The obtained results reflect the characterization of voltage sag propagated from primary to the secondary winding of transformer during various connection schemes. The method adopted would be useful to analysis the power supply network for power quality in distribution transmission network.

Keywords:

Power quality, unsymmetrical fault and sequence analyzer , voltage sag,

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Competing interests

The authors have no competing interests.

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