Title :
Studies on resonance phenomena caused by energization of transformer
Author :
Gesong, Chen ; Yonghua, Yin ; Yong, Tang
Author_Institution :
Power Syst. Dept., CEPRI, Beijing, China
Abstract :
This paper presents an analysis of high frequency resonance caused by switching on the unload transformers, including its equivalent circuit, basic equations, resonance conditions, origin of harmonic energy and its analytical methods. Two typical resonance phenomena from HVDC and HVAC transmission systems are studied by means of EMTP, and the simulation results provided a good agreement with the field measurement. The potential problems caused by energization of transformer and its countermeasures for different system conditions are discussed.
Keywords :
EMTP; HVDC power transmission; circuit resonance; equivalent circuits; power system analysis computing; power system stability; power system transients; power transformers; transmission network calculations; EMTP; HVAC transmission systems; HVDC transmission systems; equivalent circuit; harmonic energy; high frequency resonance; power transformer energisation; unload transformers; Circuit faults; Equations; Equivalent circuits; Impedance; Magnetic resonance; Power harmonic filters; Power system harmonics; Resonant frequency; Surges; Switching circuits;
Conference_Titel :
Power System Technology, 2002. Proceedings. PowerCon 2002. International Conference on
Print_ISBN :
0-7803-7459-2
DOI :
10.1109/ICPST.2002.1067766
