| 空载热备用输电线路电能表计量分析 |
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| 引用本文： | 刘强,刘永放. 空载热备用输电线路电能表计量分析[J]. 电测与仪表, 2006, 43(2): 27-31 |
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| 作者姓名： | 刘强 刘永放 |
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| 作者单位： | 1. 江西省电力试验研究院,南昌,330006
2. 江西上饶供电公司,电能计量检定中心,江西,上饶,334000 |
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| 摘 要： | 针对空载热备用线路电能表计量情况进行了分析，由于输电线路相地、相相之间存在分布电容，会形成容性充电电流，通过CT、PT及PT二次回路传递到电能表进行计量时相位发生了偏移，造成有功电能走字现象。
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| 关 键 词： | 电容电流 电能表 互感器 相位 |
| 文章编号： | 1001-1390(2006)02-0027-05 |
| 收稿时间： | 2005-10-18 |
| 修稿时间： | 2005-10-18 |
The Measurement Analysis for the Watt-hour Meter in the Non-loaded Standby Power Line |
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| LIU Qiang,LIU Yong-fang. The Measurement Analysis for the Watt-hour Meter in the Non-loaded Standby Power Line[J]. Electrical Measurement & Instrumentation, 2006, 43(2): 27-31 |
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| Authors: | LIU Qiang LIU Yong-fang |
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| Affiliation: | 1.Jiangxi Power Testing Institute, Nanchang 330006, Jiangxi, China; 2.Power Metering Verification Centre, jiangxi Shangrao Power Supply Company, hangrao 334000, Jiangxi, China |
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| Abstract: | The situation of the watt-hour meter in the non-loaded standby power line is analyzed in this paper. When charging current, which is caused by the distributed capacitance between phase and ground or phase and phase in the power line, is transmitted to the watt-hour meter through the CT, PT and PT secondary loop, the phase shift is occurred in the measurement process, and the active power running phenomenon is happened. |
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| Keywords: | capacitance current watt-hour meter transformer phase |
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