Frequency behavior of the residual current devices

International Conference on Applied Sciences 2016

Erdei, Z.^1 ; Horgos, M.^1 ; Lung, C.^1 ; Pop-Vadean, A.^2 ; Muresan, R.^1

Technical University of Cluj-Napoca, North University Centre of Baia Mare, Department of Electrical, Electronics and Computers Engineering, Victor Babes str., no. 62A, Baia Mare

430083, Romania^1

Technical University of Cluj-Napoca, Department of Mechatronics and Machine Dynamics, Blvd. Muncii, no. 103-105, Cluj-Napoca

400641, Romania^2

关键词: Experimental investigations;    Fault conditions;    Frequency behavior;    Ground fault current;    High sensitivity;    Operating characteristics;    Residual current;    Residual current devices;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/163/1/012053/pdf
DOI  :  10.1088/1757-899X/163/1/012053

来源: IOP

【 摘 要 】

This paper presents an experimental investigation into the operating characteristic of residual current devices when in presence of a residual current at a frequency of 60Hz. In order to protect persons and equipment effectively the residual current devices are made to be very sensitive to the ground fault current or the touch current. Because of their high sensitivity the residual current circuit breakers are prone to tripping under no-fault conditions.