ANALYSIS OF MEASUREMENT ERROR IN DIRECT AND TRANSFORMER-OPERATED MEASUREMENT SYSTEMS FOR ELECTRIC ENERGY AND MAXIMUM POWER MEASUREMENT

被引：4
|
作者：
Puzovic, Slavisa [1 ]
Koprivica, Branko [2 ]
Milovanovic, Alenka [2 ]
Dekic, Milic [2 ]
机构：
[1] IEDB Uzice, Prijepolje, Serbia
[2] Univ Kragujevac, Fac Tech Sci Cacak, Kragujevac, Serbia
来源：
FACTA UNIVERSITATIS-SERIES ELECTRONICS AND ENERGETICS | 2014年 / 27卷 / 03期
关键词：
Measurement error; digital energy meters; measuring current transformers;
D O I：
10.2298/FUEE1403389P
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Analysis of error in measuring electric energy and maximum power within direct and half-indirect measurement system at the voltage of 0.4kV is presented in the paper. The analysis involved all the elements of the measurement system, i.e. calibration and testing of the transformer-operated and direct digital energy meters and measuring current transformers. This equipment was also used for measurements in the transformer substation aiming at error analysis at measurements made under the real conditions. The results obtained show significant negative measurement error introduced by the energy meters under overload conditions. Energy meters have lower values of both the consumed electric energy and maximum power in this operating mode, which can be interpreted as a loss.
引用
收藏
页码：389 / 398
页数：10
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