State Grid Tianjin Dongli Electric Power Supply Company;
Tianjin;
China;
State Grid Tianjin Economic Research Institute;
Tianjin;
China;
Tianjin Electric Power Research Institute;
Tianjin;
China;
State Grid Tianjin Dispatching and Control Center;
Tianjin;
China;
Transformer; Replacement; Probability; Assessment; Weibull; Distribution; Degree; of; Polymerization;