scholarly journals Design and research of fiber optically powered Rogowski coil current transformer

2011 ◽  
Vol 15 ◽  
pp. 886-890 ◽  
Author(s):  
Wang Yutian ◽  
Yuan Jing ◽  
Wang Huixin ◽  
Liu Jie
Keyword(s):  
Current Transformer ◽  
Rogowski Coil ◽  
Coil Current

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.

scholarly journals PCB-Embedded Spiral Pattern Pick-Up Coil Current Sensor for WBG Devices

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5747
Author(s):  
Hwa-Rang Cha ◽  
Kyeong-Mo Kim ◽  
Min-Soo Song ◽  
Rae-Young Kim
Keyword(s):  
Semiconductor Device ◽  
Current Transformer ◽  
Rogowski Coil ◽  
Current Measurement ◽  
Circuit Board ◽  
Current Sensor ◽  
Spiral Pattern ◽  
Measurement Sensitivity ◽  
Coil Current ◽  
Parasitic Inductance

This paper proposes a current sensor for wide bandgap (WBG) devices. The current of a power semiconductor device is mainly measured using a Rogowski coil, an active current transformer, and a coaxial shunt resistor. The Rogowski coil and active current transformer are not suitable for the current measurement of surface mount WBG devices due to their operating principle. The coaxial shunt resistor causes parasitic inductance. Since WBG devices are more sensitive to parasitic inductance than silicon devices, parasitic inductance may affect circuit operation. To overcome these problems, this paper proposes a printed circuit board (PCB)-embedded spiral pattern pick-up coil current measurement for WBG devices. The proposed pick-up coil has high mutual inductance compared to the conventional pick-up coil, so the measurement sensitivity is high. In addition, there is no need for additional processing outside the PCB. Experimental results using a double pulse tester circuit are provided to verify the performance of the proposed current sensor.

The Application of Rogowski Coil in Power System

2014 ◽  
Vol 986-987 ◽  
pp. 1666-1668 ◽  
Author(s):  
Qing Hao Wang ◽  
Yun Shan Zhang ◽  
Wen Guang Zhang ◽  
Zhi Li ◽  
Ning Zhang ◽  
...  
Keyword(s):  
Power System ◽  
Electric Power ◽  
Rapid Development ◽  
Current Transformer ◽  
Rogowski Coil ◽  
Electric Power System ◽  
Important Research ◽  
Coil Current ◽  
Measurement Device ◽  
Research Directions

The traditional current transformer measurement device cannot meet the requirements of the rapid development in the current power system because of the outdated structure while the Rogowski coil has significant advantages. This article introduces some applications of Rogowski coil in power system. Now the research and application of Rogowski coil current transformer has become one of the most important research directions. Rogowski coil today has been widely used in electric power system.

scholarly journals Analysis on the Transfer Characteristics of Rogowski-coil Current Transformer and Its Influence on Protective Relaying

2013 ◽  
Vol 05 (04) ◽  
pp. 1324-1329 ◽  
Author(s):  
Yi Wang ◽  
Jiaman Li ◽  
Yulan Hu ◽  
Ranran An ◽  
Zexiang Cai ◽  
...  
Keyword(s):  
Current Transformer ◽  
Rogowski Coil ◽  
Coil Current ◽  
Protective Relaying ◽  
Transfer Characteristics
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