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Cascade ground fault investigation
Proceedings of IEEE Pulp and Paper Industry Conference, 2002The occurrence of multiple ground fault events in a low resistance grounded 13.8 kV power system may have an unexpected cause. This situation serves to illustrate that short circuit and load flow analyses alone are becoming increasingly inadequate as the sole means used to insure proper system operation and to minimize disruptions in three phase power ...
D.J. Ventruella, J. Traill
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Improved Scheme for Single-Ground Fault Suppression Based on Grounded-Fault Transfer Device
2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE), 2020For the sake of reliability of power distribution, medium voltage distribution networks apply small-current earthed mostly. However, traditional resonant earthed methods applied arc suppression coil have poor performance as capacitive current growing rapidly.
Hongwen Liu +4 more
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Ground fault troubleshooting (Slides)
2020This presentation: Ground Fault Problems & Locating, was given at the Energy Storage & Stationary Battery (ESSB) Committee's Winter 2020 Meeting, as Technical Symposium 1. Included in this file are the following presentations: - Ground Fault Saftey and Operational issues, by: Kurt Uhlir - What I know about unintentional ground faults in ...
Kurt Uhlir +4 more
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Pole Rebalancing Methods for Pole-to-Ground Faults in Symmetrical Monopolar HVDC Grids
IEEE Transactions on Power Delivery, 2019Pole rebalancing in symmetrical monopolar high-voltage direct current (HVDC) grids is necessary to remove pole imbalances resulting from pole-to-ground faults.
Mian Wang +4 more
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IEEE transactions on industrial electronics (1982. Print), 2019
In grounded photovoltaic (PV) systems, dc leakage to earth is formed by the contribution of the PV modules, inverters, and dc circuitry. Ground faults in such systems occur when there is an unintentional connection between any dc-carrying conductor with ...
A. Dimitriou, C. Charalambous
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In grounded photovoltaic (PV) systems, dc leakage to earth is formed by the contribution of the PV modules, inverters, and dc circuitry. Ground faults in such systems occur when there is an unintentional connection between any dc-carrying conductor with ...
A. Dimitriou, C. Charalambous
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IEEE Journal of Photovoltaics, 2019
Expeditious progress in global photovoltaic (PV) power generation is considerably challenged by electrical fault occurrences in PV arrays; particularly, line–line (LL) and line–ground (LG) faults.
Dhanup S. Pillai, R. Natarajan
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Expeditious progress in global photovoltaic (PV) power generation is considerably challenged by electrical fault occurrences in PV arrays; particularly, line–line (LL) and line–ground (LG) faults.
Dhanup S. Pillai, R. Natarajan
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Directional ground fault indicator for high-resistance grounded systems
IEEE Technical Conference Industrial and Commerical Power Systems, 2003Locating ground faults is a difficult and challenging problem for low-voltage power systems that are ungrounded or have high-impedance grounding. Recent work in pilot signals has renewed efforts in developing fault location methodologies. This paper presents a method for directional ground-fault indication that utilizes the fundamental frequency ...
T. Baldwin, F. Renovich, L.F. Saunders
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IEEE Transactions on Power Delivery, 2018
Identification of faulty feeders and sections during ground faults in compensated medium voltage systems is a complex task demanding development of new methods.
K. Pandakov +2 more
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Identification of faulty feeders and sections during ground faults in compensated medium voltage systems is a complex task demanding development of new methods.
K. Pandakov +2 more
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Protection of inverter‐based microgrids from ground faults by an innovative directional element
IET Generation, Transmission & Distribution, 2018The complicated response of inverter-interfaced distributed generators (IIDG) to faults has been reported, which severely affects all parts of relaying, i.e. fault sensing and polarisation, and faulted phase selection.
Behnam Mahamedi +4 more
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Fault-resistance effect on ground fault current
Electrical Engineering, 1953GROUND FAULT currents may be reduced substantially when fault resistance is included in the fault circuit. The majority of faults that occur on a power system involve ground and occur between conductor and tower. When a fault occurs to a steel tower or grounded wood pole on a grounded system the footing resistance is included automatically in the fault
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