| 降低电压互感器计量二次回路压降提高电能计量准确率 |
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| 引用本文： | 李娟,王志,刘瑞芳.降低电压互感器计量二次回路压降提高电能计量准确率[J].山西电力,2014(5):28-30. |
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| 作者姓名： | 李娟 王志 刘瑞芳 |
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| 作者单位： | 大唐太原第二热电厂;国网山西省电力公司电力科学研究院; |
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| 摘 要： | 降低电能计量误差、减少由电能计量误差引起的电量损失是发电厂电气仪表专业工作的重点，实践证明，形成电能计量误差的多种因素中，以电压互感器二次回路中压降所产生的误差最为突出。通过分析电压互感器二次回路压降产生的原因，提出降低二次压降的技术措施，从而提高电能计量的准确率，提高发电厂的经济效益。
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| 关 键 词： | 电压互感器 电能计量 压降 空气断路器 |
Reducing Secondary Circuit Voltage Drop and Increasing the Accuracy of Electric Energy Measurement |
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| Affiliation: | LI Juan, WANG Zhi, LIU Rui-fang (1. Datang Taiyuan Co-generation Power Plant, Taiyuan, Shanxi 030041, China; 2. State Grid Shanxi Electric Power Research Institute, Taiyuan, Shanxi 030001, China) |
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| Abstract: | It is important for electric instrument department to reduce energy metering error and mitigate electric energy loss caused by the error. Practice has proved that among the variety of factors leading to the energy metering error,the error caused by voltage drop of the transformer secondary circuit is the most prominent one. By analyzing the causes of the voltage drop,technical measures to lower secondary voltage drop are proposed,thereby the accuracy of energy measurement is improved and economic efficiency of power plants is increased. |
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| Keywords: | potential transformer electric energy measurement voltage drop air circuit breaker |
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