765 kV power transformer losses upon energizations: A comparison between field test measurements and EMTP-RV simulations

被引：6

作者：

Morin, C. ^{[1
]}

Khodabakhchian, B. ^{[1
]}

机构：

[1] Hydro Quebec TransEnergie, Montreal, PQ, Canada

来源：

ELECTRIC POWER SYSTEMS RESEARCH | 2014年 / 115卷

关键词：

Transformer saturation; Eddy current losses; Hysteresis losses; Harmonic over-voltages; Ferroresonance; EMTP-RV;

D O I：

10.1016/j.epsr.2014.04.015

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Transformer energization tests were performed in Hydro-Quebec Chateauguay substation on a 300 MVA single-phase 765/125/12.5 kV Yg-Yg-Delta power transformer in order to improve power transformer modeling for harmonic over-voltage evaluations upon energizations and fault removals close to HVDC converters with associated filters and capacitor banks. From these results, an enhanced transformer model has been developed in EMTP-RV Software. Subsequent simulations show that accurate modeling of the power transformer losses does only have minor influences on harmonic over-voltages damping. It is shown however that the usage of the proposed model is essential to predict adequately the risks of ferroresonance and generated over-voltages in power systems. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：35 / 42

页数：8