Giant Magneto-Resistive (GMR) Sensors for Non-Contacting Partial Discharge Detection

Giant Magneto-Resistive (GMR) Sensors for Non-Contacting Partial Discharge Detection

Chen, Y. (TU Delft DC systems, Energy conversion & Storage; South China University of Technology)
Castro Heredia, L.C. (TU Delft ESP LAB)
Smit, J.J. (TU Delft EEMS - General; IWO (Inst. for Science & Development / Inst. voor Wetenschap & Ontwikkeling))
Ghaffarian Niasar, M. (TU Delft High Voltage Technology Group)
Ross, Robert (TU Delft High Voltage Technology Group; IWO (Inst. for Science & Development / Inst. voor Wetenschap & Ontwikkeling))

2023

Partial discharge (PD) detection is a standardized technique to qualify the insulation condition in power equipment. The main purpose of the article is to evaluate the performance of an extra high-sensitivity adapted giant magneto-resistive (xMR) sensor for non-contacting PD detection. First, compensation and signal conditioning circuits of the sensor are designed. Frequency response and time-domain response to fast calibrator pulses of the sensor with the implemented circuit are measured. Besides, PD experiments based on corona and surface models are carried out and compared with measurements using a high-frequency current transformer (HFCT). The results show that the xMR system can measure the magnetic fields produced by the PDs at distances up to 50 cm. The correlation between the HFCT and xMR signals is proportional under different voltages, showing that PDs can be effectively detected and evaluated by this method. PDs in a cross-linked polyethylene (XLPE) cable with an artificial discharging defect are successfully measured, demonstrating the sensitivity and performance of the xMR system.

Cross-linked polyethylene (XLPE) cable
electromagnetic field measurement, giant magneto-resistive (GMR) sensor
Giant magneto-resistive (GMR)
partial discharge (PD)

http://resolver.tudelft.nl/uuid:3303f45a-48ad-4d4a-81bd-0c3b8eb3a947

https://doi.org/10.1109/TIM.2023.3268485

2023-10-19

0018-9456

IEEE Transactions on Instrumentation and Measurement, 72

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Institutional Repository

journal article

© 2023 Y. Chen, L.C. Castro Heredia, J.J. Smit, M. Ghaffarian Niasar, Robert Ross