1. Use of vegetable oils as transformer oils—a review;Rafiq;Renew Sustain Energy Rev,2015
2. A review of condition monitoring techniques and diagnostic tests for lifetime estimation of power transformers;Islam;Electr. Eng.,2017
3. Sensitivity of transformer’s hottest-spot and equivalent aging to selected parameters;Peterchuck;IEEE Transactions on PowerDelivery,2002
4. Muhammad Rafiq, Yuzhen Lv, and Chengrong Li, A Review on Properties, Opportunities, and Challenges of Transformer Oil-Based Nanofluids,Journal of Nanomaterials, vol. 2016, Article ID 8371560, 23 pages, 2016.https://doi.org/10.1155/2016/8371560.