1. An empirical fourier transform-based power transformer differential protection;Murugan;J IEEE Trans Power Del,2017
2. Zhang K, Qi X, Yin X, Chen K, Hu W, Zhang S. The study on CT saturation caused by the circulating current in the delta-winding of converter transformer and its impact on the protection in HVDC system. A. In: 12th IET international conference on AC and DC power transmission (ACDC 2016), Beijing; 2016. p. 1–5.
3. The impact of current transformer saturation on transformer differential protection;Stanbury;IEEE Trans Power Del,2015
4. Xingguo W, Zexin Z, Dingxiang D. A phase selection element for zero sequence current differential protection. In: 2014 International Conference on Power System Technology, Chengdu; 2014. p. 362–7.
5. A phase-shifting transformer protection technique based on directional comparison approach;Khan;J IEEE Trans Power Delivery,2014