A Low Cost Device for the Compensation of Voltage Transformers

被引：0
|
作者：
Baccigalupi, A. [1 ]
Liccardo, A. [2 ]
机构：
[1] Univ Naples Federico II, Dipartimento Informat & Sistemist, Via Claudio 21, I-80125 Naples, Italy
[2] Univ Naples Federico II, Dipartimento Ingn Elettr, I-80125 Naples, Italy
来源：
2008 IEEE INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE, VOLS 1-5 | 2008年
关键词：
Voltage Transformers; electronic compensation; primary impedances measurement;
D O I：
10.1109/IMTC.2008.4547240
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：
In the paper a low cost method for the compensation of Voltage Transformers (VTs) is proposed. The compensation technique is based on a proper circuit connected to the secondary terminals that, by sensing the VT primary current, generates a voltage that compensates the primary voltage drops The designed circuit for the compensation is physically separated from the VT so that it proves to be easily employed for enhancing the performance of commercial VT or VT already working on the transmission network. For the measurement of VT primary current a proper transducer has been designed, it allows the measurement of low current (in the range of milliampere) granting the required insulation between the primary circuit and the measurement section. In order to configure the compensating circuit, the VT primary parameters have to be known; a suitable method, thus, for the characterization of VT is also proposed
引用
收藏
页码：1282 / +
页数：2
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