Telephone interference caused by harmonics in distribution systems: Analysis and simulations

Author

Todeschini, Grazia ; Mueller, David R. ; Morris, Greg Young

Author_Institution

EnerNex LLC, Knoxville, TN, USA

fYear

2013

fDate

21-25 July 2013

Firstpage

1

Lastpage

5

Abstract

The subject of this paper is telephone interference caused by harmonics in distribution systems. The first part of the paper presents a theoretical analysis of the phenomenon with a detailed discussion of the role of ground currents and harmonic sequence order. Applicable standards, acceptable interference levels and mitigating solutions are also summarized. The second part of the paper describes modeling and simulations of a typical distribution system. Simulation results show the importance of controlling harmonics on the feeder to limit telephone interference concerns.

Keywords

distribution networks; earthing; interference suppression; power system harmonics; telephone interference; distribution system; ground current; harmonic sequence order; harmonics control; telephone interference mitigation; Conductors; Harmonic analysis; Interference; Magnetic fields; Power system harmonics; Probes; Wires; Distribution Systems; Ground Current; Harmonics; Mutual Coupling; Telephone Interference;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting (PES), 2013 IEEE

Conference_Location

Vancouver, BC

ISSN

1944-9925

Type

conf

DOI

10.1109/PESMG.2013.6672175

Filename

6672175