TY - GEN
T1 - Ground Fault Protection of Synchronous Generators with Frequency-Selective Grounding
AU - Saleh, S.
AU - Jewett, D.
AU - Meng, J.
AU - Valdes, M.
AU - Ahshan, R.
AU - Panetta, S.
AU - Mardegan, C.
N1 - Publisher Copyright:
© 2022 IEEE.
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PY - 2022/10/9
Y1 - 2022/10/9
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 protection 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 protection relays.
KW - Frequency-selective grounding
KW - ground fault protection of synchronous generators
KW - power system faults
UR - http://www.scopus.com/inward/record.url?scp=85142835708&partnerID=8YFLogxK
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U2 - 10.1109/ias54023.2022.9939677
DO - 10.1109/ias54023.2022.9939677
M3 - Conference contribution
AN - SCOPUS:85142835708
T3 - 2022 IEEE Industry Applications Society Annual Meeting (IAS)
SP - 1
EP - 8
BT - 2022 IEEE Industry Applications Society Annual Meeting, IAS 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 IEEE Industry Applications Society Annual Meeting, IAS 2022
Y2 - 9 October 2022 through 14 October 2022
ER -