Evaluation of Restricted Earth-Fault Transformer Differential Protection Schemes Through an Experimental Test Bench
Document Type
Conference Proceeding
Publication Date
12-15-2023
Department
Department of Electrical and Computer Engineering
Abstract
This paper presents an experimental test bench for generating events and faults in a three-phase transformer assembled in a laboratory for the purpose of validating performance of two restricted earth-fault (REF) differential protection algorithms: a conventional method, based on phasors; and a high-frequency-components-based algorithm, which uses the wavelet transform. The high-frequency-based method performed well, detecting all faults rapidly, whereas the phasor-based method failed to detect the fault during a transformer energization event, besides to presenting greater delays than wavelet-based one. The results indicate the feasibility of the experimental test bench in generate representative cases to the validation of existing restricted earth-fault transformer differential protection schemes.
Publication Title
2023 Workshop on Communication Networks and Power Systems, WCNPS 2023
ISBN
9798350343571
Recommended Citation
Medeiros, R.,
Simoes, L.,
&
Costa, F.
(2023).
Evaluation of Restricted Earth-Fault Transformer Differential Protection Schemes Through an Experimental Test Bench.
2023 Workshop on Communication Networks and Power Systems, WCNPS 2023.
http://doi.org/10.1109/WCNPS60622.2023.10345046
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p2/490