Analysis of Sequences Harmonics Measurement Impact Using Potential Transformers Grounded through Ferroresonance Eliminator

Abstract:

This paper has carried on the theoretical analysis and experimental research on the different impacts of positive, negative and zero sequence harmonic voltage measurement using three single-phase potential transformers with neutral point grounded through a ferroresonance eliminator. First, the influences of the different excitation characteristics among the three PTs and the non-linear excitation characteristics of a single-phase PT on different sequences harmonic voltage measurement are analyzed theoretically. Then the physical experiment platform has been designed, and the experiments of three-phase PTs on different sequences harmonic voltage measurement are carried on. The experiment results verified that the influences of three-phase PTs on different sequences harmonic measurement are not the same at this grounding mode.

• Periodical: Applied Mechanics and Materials (Volume 615)
• Pages: 215-221
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.615.215
• Online since: August 2014
• Authors: Yi Huang Chen*, Yu Chao Li, Jie Wu, Kai Pei Liu
• Keywords: Excitation Characteristic, Ferroresonance Eliminator, Harmonic Measurement, Potential Transformer, Zero Sequence

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