Investigation of Transformer Model for TRV Calculation by Using Frequency Dependent Inductance Model

Autor:	Hiroaki Toda, Masayuki Hikita, Hisatoshi Ikeda, Myo Min Thein, Eiichi Haginomori, Tadashi Koshiduka
Rok vydání:	2011
Předmět:	Leakage inductance Materials science Control theory business.industry Flyback transformer Electrical engineering Energy efficient transformer Distribution transformer Delta-wye transformer Transformer effect business Current transformer Transformer types
Zdroj:	Journal of International Council on Electrical Engineering. 1:188-193
ISSN:	2234-8972
DOI:	10.5370/jicee.2011.1.2.188
Popis:	The transient recovery voltage (TRV) of the transformer limited fault (TLF) current interrupting condition has been investigated with several transformers by using current injection (CIJ) method. A transformer model for the TLF condition is treated as leakage impedance and a stray capacitance with an ideal transformer in a computation by EMTP. By using the frequency response analysis (FRA) measurement, the transformer constants were evaluated at high frequency regions. FRA measurement graphs showed that the leakage inductance value of the test transformers gradually decreases along with the frequency. From these results, frequency dependent transformer equivalent circu it was constructed. The frequency response of the model was good agreement with measurement.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bae8f4e6b1ae2e66ef14fb09e3e6385b https://doi.org/10.5370/jicee.2011.1.2.188 Zobrazit plný text záznamu