Analysis of three-phase voltage imbalance in ungrounded neutral system
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Graphical Abstract
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Abstract
This paper analyzes the causes of three-phase voltage imbalance in ungrounded neutral system, and compares the voltage amplitude, zero-sequence voltage and grounding signal when different faults lead to voltage imbalance, which can be used to quickly find out the causes of voltage imbalance in substation, so that operators can quickly find faults and deal with them.
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