학술논문

Electromagnetic Interference Measurements at 900 MHZ on 230-KV and 500-KV Transmission Lines
Document Type
Periodical
Source
IEEE Transactions on Power Delivery IEEE Trans. Power Delivery Power Delivery, IEEE Transactions on. 1(2):140-149 Apr, 1986
Subject
Power, Energy and Industry Applications
Electromagnetic interference
Transmission line measurements
Electromagnetic measurements
Antenna measurements
Poles and towers
Hardware
Conductors
Weather forecasting
Preamplifiers
Detectors
Language
ISSN
0885-8977
1937-4208
Abstract
Electromagnetic interference (EMI) measurements in the 900 MHz range from a 230-kV and 500-kV transmission are reported. The paper presents measurements made from the tower hardware and midspan conductors in both fair and foul weather conditions. A sensitive meaurement system consisting of a high-gain parabolic antenna and a low-noise preamplifier were employed to gather EMI data from four different detectors and two bandwidths. The results are then compared with predictions based on extrapolation of previous data gathered at frequencies below 200 MHz.