Open AccessElectric field energy harvesting for on‐line condition‐monitoring device installed on high‐voltage transmission tower
Author(s) -
Zhao Dongsheng,
Dai Dong,
Li Licheng
Publication year - 2015
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2015.1975
Subject(s) - electrical engineering , electric power transmission , capacitance , voltage , transformer , transmission line , high voltage , engineering , electric field , tower , electric power , electric generator , power (physics) , physics , electrode , structural engineering , quantum mechanics
A method for powering an on‐line condition‐monitoring device installed on a high‐voltage transmission tower is presented. The technique uses the harvesting plate and a transformer both installed away from the transmission line to harvest the electric field energy. The circuit model of the method is analysed and the power equation given. The method has been experimentally validated. When the stray capacitance is 40 pF, about 645 mW was obtained with the load resistance 0.9 kΩ once 50 kV AC was applied on the electric field generator.