The Effect of Temperature and Humidity on Radio Interference Generated from UHV DC Transmission Lines

Abstract

To research the effect of temperature and humidity on radio interference generated from UHV DC transmission lines, a mini corona cage has been constructed and put in a manual environment room, which temperature and humidity can be controlled. At the same time, a radio interference performance measuring system by using loop method has been set up too. The radio interference generated from a copper line have been measured in a mini corona cage not only at different humidity from 30% to 99% at 20 but also at different temperature from 0 to 30. The relationship between radio interference level and temperature and humidity have been achieved.