Audible telephone noise from small harmonic sources on single-phase distribution

Author

Jewell, Ward ; Miller, William ; Casey, Tom

Author_Institution

Power Quality Lab., Wichita State Univ., KS, USA

Volume

2

fYear

1998

fDate

14-18 Oct 1998

Firstpage

890

Abstract

Telephone company customers reported audible noise in their telephone service. Through measurements, analysis, and simulations, 540 Hz noise was found to be coupling from power distribution to telephone cables in a shared underground right-of-way. The source of the noise was small single-phase electronic loads dispersed throughout the power distribution system in the area

Keywords

power cables; power system harmonics; telecommunication cables; telephone interference; underground cables; underground distribution systems; 540 Hz; audible telephone noise; grounding; harmonic analysis; noise coupling; noise source; passive filters; power distribution system; power filters; power system modelling; shared underground right-of-way; single-phase distribution; small harmonic sources; small single-phase electronic loads; telephone company customers; wire communication interference; Acoustic noise; Circuit noise; Conductors; Earth; Hospitals; Power system harmonics; Probes; Telephony; Voltage; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Harmonics and Quality of Power Proceedings, 1998. Proceedings. 8th International Conference On

Conference_Location

Athens

Print_ISBN

0-7803-5105-3

Type

conf

DOI

10.1109/ICHQP.1998.760160

Filename

760160