Title :
New method of live line measuring the parameters of t-connection transmission lines with mutual inductance
Author :
Hu, Zhijian ; Fan, Jiacheng ; Chen, Mi ; Xu, Zhongzhu
Author_Institution :
Sch. of Electr. Eng., Wuhan Univ., Wuhan, China
Abstract :
Based on GPS technology, a novel method of live line measuring the zero sequence parameters of T-connection transmission lines with mutual inductance is proposed. The mathematical models of the new method are explained in detail. The hardware structure and digital simulation results are given. Finally, an example of live line measuring two 220kV transmission lines with T-connection branches in South China power grid is given. The field measurement results prove that the new method can meet the needs of live line measurement of T-connection transmission lines´ inductance parameters.
Keywords :
Global Positioning System; power grids; power system measurement; power transmission lines; Global Positioning System; T-connection branches; T-connection transmission lines; live line measurement; mutual inductance; power grids; voltage 220 kV; Earth; Global Positioning System; Inductance measurement; Mathematical model; Position measurement; Power system protection; Power system relaying; Power system reliability; Power transmission lines; Transmission line measurements; Global Positioning System; T-connection transmission lines; live line measurement; zero sequence parameters;
Conference_Titel :
Power & Energy Society General Meeting, 2009. PES '09. IEEE
Conference_Location :
Calgary, AB
Print_ISBN :
978-1-4244-4241-6
DOI :
10.1109/PES.2009.5275297
