Nonunit protection based on the ratio of IVRW tangent envelope area for modular multilevel converter based HVDC grid. [PDF]
Sci RepSun Y, Fan Y, Hou J, Song G.
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Design of fault location algorithm based on online distributed travelling wave for HV power cable. [PDF]
PLoS OneHaohao C, Jing L, Ping C.
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Condition monitoring and fault diagnosis of power transformer based on non-invasive measurement. [PDF]
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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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Ground fault location identification for multiple drive high resistance grounding systems
2013 IEEE Energy Conversion Congress and Exposition, 2013One of the more difficult problems to solve in industrial plants is to locate and eliminate a ground fault in High Resistance Grounding (HRG) system. This is because ground fault conditions in these systems do not draw enough current to reliably trip the ground fault current detector in the drive. This paper studied the ground fault identification (GFI)
Lixiang Wei +3 more
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Fault locating in ungrounded and high-resistance grounded systems
IEEE Transactions on Industry Applications, 2001One of the most common and difficult problems to solve in industrial power systems is the location and elimination of the ground fault. Ground faults that occur in ungrounded and high-resistance grounded systems do not draw enough current to trigger circuit breaker or fuse operation, making them difficult to localize. Techniques currently used to track
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Enhanced sensitive phase alpha plane scheme against high resistance ground faults
International Journal of Emerging Electric Power Systems, 2023AbstractPhase-based Alpha (α) Plane Relaying (APR) scheme has numerous advantages over the Current Differential Relay (CDR) for transmission line protection. Since the large Restraining Region (RR) in the APR makes high security against CT saturation, channel delay, line charging current and synchronization error. However, the APR loses its sensitivity
Suryanarayana Gangolu, Saumendra Sarangi
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Digital fault location for high resistance grounded transmission lines
IEEE Transactions on Power Delivery, 1999This paper demonstrates that the presence of multiple load taps cannot be neglected for single-phase-to-ground fault location. A new method has been developed taking this into consideration, that can be applied to correct the location error due to intermediate power sources.
T. Funabashi +7 more
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High-resistance neutral grounding in industrial systems and the ground fault protection
2013 Brazilian Power Electronics Conference, 2013The objective of this paper is to present the state-of-the art in the high-resistance neutral grounding practice in LV (480V) and MV (4.16kV) industrial power systems, not still widely known in Brazil, especially regarding the ground fault detection and location systems, and equipment protection with selectivity.
Gladston A. F. Bernardi +1 more
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