scholarly journals Current Sensor Optimization based on Simulated Transfer Function under Partial Discharge Pulses

2021 ◽  
pp. 112825
Author(s):  
Douglas Nascimento ◽  
Shady S. Refaat ◽  
Hermes Loschi ◽  
Yuzo Iano ◽  
Euclides Chuma ◽  
...  
Keyword(s):  
Transfer Function ◽  
Partial Discharge ◽  
Current Sensor ◽  
Sensor Optimization

Partial Discharge Localization on Power Cables Using On-Line Transfer Function

2019 ◽  
Vol 34 (4) ◽  
pp. 1490-1498 ◽  
Author(s):  
Mahdi Mahdipour ◽  
Asghar Akbari ◽  
Peter Werle ◽  
Hossein Borsi
Keyword(s):  
Transfer Function ◽  
Partial Discharge ◽  
Power Cables ◽  
On Line ◽  
Line Transfer

The Measurement System of Partial Discharge under Impulse Voltage

2014 ◽  
Vol 543-547 ◽  
pp. 1046-1049
Author(s):  
Jing Gang Yang ◽  
Yong Yong Jia ◽  
Zhi Cheng Zhou ◽  
Jun Hao Li
Keyword(s):  
High Voltage ◽  
Measurement System ◽  
High Frequency ◽  
Partial Discharge ◽  
Current Sensor ◽  
Power Equipment ◽  
Test Results ◽  
Test Technology ◽  
Impulse Voltage ◽  
Frequency Current

Partial discharge (PD) is the important detection parameter for power equipment, with the development of high voltage test technology, PD detection under impulse voltage is more attention. In order to detect the partial discharge signal under the impulse voltage, this paper designs a high-frequency current sensor and broadband measurement impedance. A set of partial discharge measurement system under impulse voltage is built up. The frequency characteristics of current sensor and measurement impedance are detected. In order to test the measurement system, the PD signals of a needle defect under impulse voltage is detected, the test results show that the PD measurement system can detect the PD signals effectively.

Reflective Detection Method of Partial Discharge Using Optical Fiber Sensor

2020 ◽  
Vol 41 (4) ◽  
pp. 363-370 ◽  
Author(s):  
Gaifang Xin ◽  
Jun Zhu ◽  
Chengming Luo ◽  
Wei Li
Keyword(s):  
Optical Fiber ◽  
Partial Discharge ◽  
Optical Fiber Sensor ◽  
Optical Path ◽  
Path Model ◽  
Current Sensor ◽  
Linear Birefringence ◽  
Current Sensing ◽  
Sensing System ◽  
Fiber Optical

AbstractAiming at the characteristic of small amplitude of partial discharge current signal, all-optical fiber current sensing system is designed. Two kinds of optical fiber current sensor structures are proposed, which are linear and reflective. The optical path systems of two kinds of fiber optical current sensor are modeled based on Jones matrix. In addition, the output sensitivities of two structures are compared. The results indicate that the sensitivity of the two current sensor structures can be improved, and the output sensitivity of the reflective fiber optical current sensor is twice as high as that of the linear sensor. At the same time, the complete optical path model of optical fiber sensing system is established under the influence of fiber birefringence errors. Finally, the birefringence errors of sensing fiber are simulated. It is concluded that the reflective fiber optical current sensor can suppress the influence of linear birefringence on the accuracy of the sensing system by introducing a large amount of circular birefringence in the sensing fiber.

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