Economic Benefit Analysis of 220 kV Energy-saving Power Transformer

Weili Chen, Xian Ma, Jingtian Bi, Zhisen Li, Tong Jiang

State Key Laboratory of Alternate Electrical Power, System with Renewable Energy Sources, North China Electric Power University, Beijing, China.
Tai’an Power Supply Company, Shandong Electric Power Corporation.

DOI: 10.4236/epe.2013.54B247                

Abstract

Power transformer serves as one of the most widely used electrical equipments in power grid. During the operation, terrible losses are produced. With the development of loss reduction technology of power transformers, in order to save energy saving and reduce emissions, the old power transformer should be replaced. The paper summarizes the main method to reduce the losses of power transformers and brings up the improved Total Owning Cost (TOC) algorithm, which applies to 220 kV power transformers’ comprehensive benefit analysis. Using the improved Total Owning Cost (TOC) algorithm, based on today 220 kV energy-saving power transformer manufacturing level, the economic benefits of new energy-saving power transformer and the return period of investment are analyzed. Finally, combined with energy-saving effect, the appropriate replacement proposal of 220 kV power transformers has been given.

Keywords

220 kV Power Transformer; Loss Reduction Technology of Transformer; TOC Algorithm; Economic Analysis

Conflicts of Interest

The authors declare no conflicts of interest.

References

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