..............page:27-29,34
..............page:19-21,26
Features of Vibration Signal of Transformer Based on the Wavelet Packet Energy Entropy
liu shan1; cao hai-quan2; yu hai3; hong gang4(1.hydro china xibei engineering corporation; xi an 710056; shaanxi province; china; 2.yibin electric power bureau; yibin 644002; sichuan province; china; 3.cangzhou electric power company; cangzhou 061000; hebei province; china; 4.department of electrical engineering; xi an university of technology; xi an 710048; shaanxi province; china)
..............page:35-38
Short Line Distance Protection Test Methods
mao jian-zhong1; liu rui-yu2(1.guodian nanjing automation co.; ltd.; nanjing 211103; jiangsu province; china; 2.beijing tianrun new energy co.; ltd.; beijing 100022; china)
..............page:45-46