Research on the Compensation Technique for LPCT Type Electronic Current Transformers

2010 ◽  
Author(s):  
Yue Xie ◽  
Jing Xu
Keyword(s):  
Current Transformers ◽  
Electronic Current ◽  
Compensation Technique ◽  
Electronic Current Transformers

Design and Analysis of PCB Rogowski Coil Current Transformer

2014 ◽  
Vol 672-674 ◽  
pp. 984-988
Author(s):  
Biao Su ◽  
Li Xue Li ◽  
Yi Hui Zheng ◽  
Xin Wang ◽  
Yan Liu ◽  
...  
Keyword(s):  
Power System ◽  
High Sensitivity ◽  
Current Transformer ◽  
Rogowski Coil ◽  
Electromagnetic Current ◽  
Current Transformers ◽  
Coil Current ◽  
Electronic Current ◽  
Rogowski Coils ◽  
Electronic Current Transformers

Electronic current transformers are more suitable for the development of power system compared with traditional electromagnetic current transformers. Rogowski coil current transformer is one of three electric current transformers. According to the measurement principle of Rogowski coils, the equivalent circuit of PCB Rogowski coils is analyzed. By using four PCB Rogowski coils combined, a PCB Rogowski coil current transformer is designed and tested. The results show that the designed PCB Rogowski coil transformer has good linearity and high sensitivity and measurement accuracy and it can meet the requirement of power system.

DESIGN AND TEST OF A NEW HIGH-CURRENT ELECTRONIC CURRENT TRANSFORMER WITH A ROGOWSKI COIL

2014 ◽  
Vol 21 (1) ◽  
pp. 121-132 ◽  
Author(s):  
Ming Zhang ◽  
Kaicheng Li ◽  
Shunfan He ◽  
Jun Wang
Keyword(s):  
Dynamic Range ◽  
Partial Evaluation ◽  
Current Transformer ◽  
Rogowski Coil ◽  
High Current ◽  
Current Transformers ◽  
Electronic Current Transformer ◽  
Electronic Current ◽  
Electro Magnetic ◽  
Electronic Current Transformers

Abstract This paper describes the design and test of a new high-current electronic current transformer based on a Rogowski coil. For better performances, electronic current transformers are used to replace conventional electro-magnetic inductive current transformers based on ferromagnetic cores and windings to measure high-current on the high voltage distribution grids. The design of a new high-current electronic current transformer is described in this paper. The principal schemes of the prototype and partial evaluation results are presented. Through relative tests it is known that the prototype has a wide dynamic range and frequency band, and it can allow high accuracy measurements.

scholarly journals A Redundancy Mechanism Design for Hall-Based Electronic Current Transformers

Energies ◽  
2017 ◽  
Vol 10 (3) ◽  
pp. 312 ◽  
Author(s):  
Kun-Long Chen ◽  
Ren-Shuo Wan ◽  
Yi Guo ◽  
Nanming Chen ◽  
Wei-Jen Lee
Keyword(s):  
Mechanism Design ◽  
Current Transformers ◽  
Electronic Current ◽  
Electronic Current Transformers

A Nonlinear Compensation Approach for the Iron-Core Coils Based Electronic Current Transformers

2011 ◽  
Vol 383-390 ◽  
pp. 4371-4376
Author(s):  
Yue Xie ◽  
Li Qing Shen ◽  
Jing Chen
Keyword(s):  
Electrical Measuring ◽  
Nonlinear Behavior ◽  
Current Transformer ◽  
Iron Core ◽  
Current Transformers ◽  
Electronic Current ◽  
Nonlinear Compensation ◽  
Compensation Approach ◽  
Electronic Current Transformers ◽  
Hardware Circuit

Iron-Core coils based electronic current transformer is often used with electrical measuring instrumnts and meters. However, the iron-core coils used as the primary current sensor have nonlinear behavior, and its magnetizing current can be considered as the main error source. Therefore, a nonlinear compensation approach for the iron-core coils based electronic current transformers is proposed in this paper. The approach depends on a linear hardware circuit and a nonlinear numeric control law. Theoretical analysis and experimental results have verified the correctness of the proposed method.

An Innovative Electronic Current Transformer Applied in High Voltage Systems

2011 ◽  
Vol 301-303 ◽  
pp. 1471-1476 ◽  
Author(s):  
Zheng Qi Tian ◽  
Zhen Hua Li ◽  
Yue Tong
Keyword(s):  
Current Transformer ◽  
High Price ◽  
Test Results ◽  
Paper Test ◽  
Current Transformers ◽  
Integration Algorithm ◽  
Electronic Current Transformer ◽  
Electronic Current ◽  
Power Frequency ◽  
Electronic Current Transformers

With the development of power system, Conventional current transformers (CTs) show a growing number of shortcomings. For better performances, Electronic Current Transformers (ECTs) are researched to replace CT. But high price, unsatisfactory life and unpredictable reliability hold back their industrializations. Employing the insulation structure of traditional inverted SF6transformers and the new sensing principle at the same time, using high-precision digital integration algorithm which has higher precision to extracting the power frequency signal, an innovative electronic current transformer is introduced in this paper. Test results show that the transformer has high accuracy, low price, good stability, wide frequency response and long life.

A New Vibration Testing Platform for Electronic Current Transformers

2019 ◽  
Vol 68 (3) ◽  
pp. 704-712 ◽  
Author(s):  
Zhenhua Li ◽  
Yuan Tao ◽  
A. Abu-Siada ◽  
Mohammad A. S. Masoum ◽  
Zhenxing Li ◽  
...  
Keyword(s):  
Vibration Testing ◽  
Current Transformers ◽  
Testing Platform ◽  
Electronic Current ◽  
Electronic Current Transformers
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