Radio frequency signal transmission on medium voltage power distribution lines

Author

Bukhala, Z.A. ; Glinkowski, M.T. ; Nelson, J.K. ; Forte, V.J., Jr.

Author_Institution

Dept. of Electr. Power Eng., Rensselaer Polytech. Inst., Troy, NY, USA

Volume

14

Issue

1

fYear

1999

fDate

1/1/1999 12:00:00 AM

Firstpage

46

Lastpage

51

Abstract

A series of tests measuring HF signal attenuation were performed on a de-energized 15 kV three-phase power distribution feeder. The feeder consisted of a U-shaped line measuring approximately 208 m in length with varying line geometry around the circuit. RF signals in the range of 2 to 30 MHz were injected in one phase of the feeder and the propagated responses were measured at two locations along the feeder. Tests were conducted with and without shunt power equipment (distribution transformers, arresters and capacitors) connected to the feeder. The characteristic line impedance of different line geometries was calculated by analytical means and found to be consistent with experimental results. Attenuation and characteristic impedance were found to be relatively constant at frequencies between 15 and 30 MHz with minimal influence from line geometry and power equipment placement

Keywords

HF radio propagation; attenuation measurement; carrier transmission on power lines; electric impedance; power distribution lines; power system measurement; 15 kV; 2 to 30 MHz; 208 m; HF signal attenuation measurement; RF signals injection; U-shaped line; arresters; capacitors; characteristic line impedance; de-energized distribution feeder; distribution transformers; line geometry; medium voltage power distribution lines; power equipment placement; radio frequency signal transmission; three-phase power distribution feeder; varying line geometry; Attenuation measurement; Circuit testing; Geometry; Hafnium; Impedance; Medium voltage; Performance evaluation; Power measurement; RF signals; Radio frequency;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.736679

Filename

736679