A New Method to Analyze the Error-wiring of Electric Energy Metering Device

4th Annual International Workshop on Materials Science and Engineering

Li, Jia^1 ; Xue, Wanyu^1 ; Gao, Li^1 ; Zhang, Bing^1 ; Zhou, Min^1

State Grid Sichuan Technical Training Center, Chengdu

610072, China^1

关键词: Electric energies;    Electric energy metering;    Research focus;    Reverse polarity;    Three-phase three-wire;    Voltage transformer;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/381/1/012144/pdf
DOI  :  10.1088/1757-899X/381/1/012144

来源: IOP

【 摘 要 】

The error-wiring of the three-phase three-wire electric energy metering device will cause large measurement error which results in the economic dissension. The previous research focuses on the circuits between the transformers and the electric energy meter, but neglects the polarity of the transformers caused by oversight. So a more perfect method is presented, which considers the reverse polarity of the voltage transformers. The steps are given to solve the problems which can't be solved by the original methods. The correctness and validity of the technique are proved by a calculation example.