摘要
在新装计量装置中,由于电压互感器的相序和极性的错误接线,导致电能表的错误接线,造成电能计量的不准确。本文主要讨论三相三线电能表常见的错误接线的分析方法。在计量装置现场检验中,计量人员发现计量装置接线错误,测量出必要的分析数据。根据这些数据,我们可通过向量分析推导出电能表错误接线时的接线方式,进而推断出电能表计量的有功功率表达式和更正系数,求出其对计量的影响。
The phase sequence voltage transformer and wiring polarity errors in newly installed of the measurement devices cause the error energy meter wiring and electrical energy measurement inaccurate. The paper will discuss the analyzing method of three-phase three-wire watt-hour meter common errors wiring. Duing the examination of the metering device at the scene, the wiring errors of the measurement device was found, the necessary analysis dams of measurement were measured. Based on these datas, we can deduce the connection mode of the energy meter wiring error through the vector analysis, and then infer the active power expression of the power meter measurement and the correction factor, calculate its impact on the measurement.
出处
《仪器仪表标准化与计量》
2009年第5期27-30,33,共5页
Instrument Standardization & Metrology
关键词
三相三线制电能表
错误接线
电能计量装置接线
Three-phase Three-wire System Watt-hour Meter Wrong Wiring Energy Metering Device Wiring
