TY - JOUR
T1 - Testing Ground Fault Protection of Generating Units With Frequency-Selective Grounding
AU - Saleh, S. A.
AU - Ahshan, Razzaqul
AU - Valdes, M. E.
AU - Jewett, D.
AU - Mardegan, C.
AU - Meng, J.
AU - Panetta, S. A.R.
N1 - Publisher Copyright:
IEEE
Publisher Copyright:
© 1972-2012 IEEE.
PY - 2023/3/1
Y1 - 2023/3/1
N2 - This paper experimentally evaluates responses of ground fault protection for synchronous generators, which are grounded using frequency-selective grounding. Frequency-selective grounding is designed to provide a low ground impedance path (similar to solid grounding) for high frequency zero-sequence current components. This grounding system also provides an impedance similar to a low-resistance grounding for low frequency zero-sequence current components. The frequency-dependent equivalent impedance of frequency-selective grounding can affect ground potential and current, which are typically used as inputs for ground fault protective relays. Effects of frequency-selective grounding on ground fault protection are experimentally evaluated using a 7.5 kVA synchronous generator. Experimental tests are conducted for different implementations of ground fault protection, when responding to fault and non-fault events. Evaluation results detailed in this paper demonstrate the negligible effects of frequency-selective grounding on responses of different ground fault protective relays.
AB - This paper experimentally evaluates responses of ground fault protection for synchronous generators, which are grounded using frequency-selective grounding. Frequency-selective grounding is designed to provide a low ground impedance path (similar to solid grounding) for high frequency zero-sequence current components. This grounding system also provides an impedance similar to a low-resistance grounding for low frequency zero-sequence current components. The frequency-dependent equivalent impedance of frequency-selective grounding can affect ground potential and current, which are typically used as inputs for ground fault protective relays. Effects of frequency-selective grounding on ground fault protection are experimentally evaluated using a 7.5 kVA synchronous generator. Experimental tests are conducted for different implementations of ground fault protection, when responding to fault and non-fault events. Evaluation results detailed in this paper demonstrate the negligible effects of frequency-selective grounding on responses of different ground fault protective relays.
KW - Frequency-selective grounding
KW - and ground fault protection of synchronous generators
KW - power system faults
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UR - https://www.mendeley.com/catalogue/1e6f33dd-2d98-3784-87ac-464e2c08db9c/
U2 - 10.1109/tia.2022.3233558
DO - 10.1109/tia.2022.3233558
M3 - Article
AN - SCOPUS:85147215803
SN - 0093-9994
VL - 59
SP - 2400
EP - 2412
JO - IEEE Transactions on Industry Applications
JF - IEEE Transactions on Industry Applications
IS - 2
ER -