PEA Electromagnetic Distortion Reduction by Impedance Grounding and Pulsed Voltage Electrode Configurations
| Autor: | Peter Vaessen, Luis Carlos Castro, Armando Rodrigo Mor, Guillermo Mier Escurra |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Piezoelectric sensor Acoustics TP1-1185 Biochemistry Article Analytical Chemistry Electromagnetic compatibility (EMC) Pulse electro-acoustic method (PEA) piezoelectric sensor Distortion electromagnetic compatibility (EMC) Electrical and Electronic Engineering Instrumentation Electrical impedance Ground Chemical technology pulse electro-acoustic method (PEA) Space charge Atomic and Molecular Physics and Optics space charges high voltage cables dielectrics Space charges High voltage cables INGENIERIA ELECTRICA High-voltage direct current Dielectrics Coaxial Voltage |
| Zdroj: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname Sensors (Basel, Switzerland) Sensors Volume 21 Issue 17 Sensors, 21(17) Sensors, Vol 21, Iss 5837, p 5837 (2021) |
| ISSN: | 1424-8220 |
| DOI: | 10.3390/s21175837 |
| Popis: | [EN] Space charges are one of the main challenges facing the constantly increasing use of extruded high voltage direct current (HVDC) cables. The Pulsed Electro-Acoustic (PEA) method is one of the most common procedures for space charge measurements of insulation. One issue with the PEA method is distortion due to the crosstalk between the applied voltage pulse and the acoustic sensor. This work analyzed two factors involved in the reduction in this distortion: the influence of the exposed semiconductor distance between the injection electrodes and PEA test cell, and the influence of adding a reactance at the grounding circuit of the PEA test cell. The interaction of these two factors with the distortion was analyzed through a series of experimental testing. Moreover, the performance regarding distortion after applying a developed coaxial injection was compared with the standard non-coaxial injection configuration. It was observed that these two factors had a direct impact on distortion and can be utilized for the reduction in distortion arising from the crosstalk of the applied pulsed voltage. The results can be utilized for the consideration of practical aspects during the construction of a PEA test setup for the measurement of full-size HVDC cables. This research was funded by Delt University of Technology. |
| Databáze: | OpenAIRE |
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