Magnetic Sensor Array for Electric Arc Reconstruction in Circuit Breakers
Year: 2024
Type: article
Abstract: Noninvasive imaging of circuit breakers under short-circuit testing is addressed by recording the magnetic field produced over an array of external sensors and by solving an inverse problem to identify the causing current distribution. The temporal and spatial resolution of the sensing chain are studied and implemented in a physical set-up. A wire model is adopted to describe electrical current distribution. Additionally, the simpler, more direct approach to evaluating the passage of electric current in front of sensors is proposed. The dynamics of suitable approximating models of the electric arc that forms across contacts is obtained and agrees with multi-physical simulations and with experimental time histories of current and voltage. The two methods are flexible and allow the analysis of different types of circuit breakers.
Source: Sensors
DOI: 10.3390/s24175779
Authors: Gabriele D’Antona, Luca Ghezzi, Sara Prando, Francesco Rigamonti
Institutions: Politecnico di Milano, ABB (Italy)
Language: English
Topic: Vacuum and Plasma Arcs
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,955
OpenAlex ID: W4402273428