Results 261 to 270 of about 229,035 (308)

MV generator low-resistance grounding and stator ground fault damage

Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting., 2003
Most of the in-plant medium-voltage generators are grounded through resistors ranging from 200 A to 400 A. In some unusual situations, the resistors may even be as high as 1200 A. low-resistance grounding is a preferred choice for a medium-voltage power distribution system.
A. Wu, Y. Tang, D. Finney
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Ground Fault Analysis in a Microgrid Scenario

2019 IEEE Milan PowerTech, 2019
Microgrids are based on the same grounding schemes generally adopted in the low voltage radial distribution grids. Unlike traditional distribution grids, in islanded microgrids the neutral grounding becomes a complex problem due to different operating configurations. All the electrical devices connected to the microgrid must be modeled to guarantee the
Dolara A., Ogliari E., Raboni P.
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Advanced generator ground fault protections

2015 68th Annual Conference for Protective Relay Engineers, 2015
Ground faults in generator stator and field/rotor circuits are serious events that can lead to damage, costly repair, extended outage and loss of revenue. This paper explores advances in field/rotor circuit ground fault and stator ground fault protection.
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Unit-connected generator with ground-fault neutralizer in generator neutral during ground-fault process

IEEE/PES Transmission and Distribution Conference and Exhibition, 2003
The 1st harmonic of the voltage zero-sequence component in the generator neutral during generator normal operation, during faults in the generator stator windings and in the power system and 3rd harmonic of the voltage zero-sequence component in generator neutral during normal operation and during ground-faults in stator winding are analysed.
openaire   +1 more source

Fault detection and fault isolation in the ground station

MILCOM 97 MILCOM 97 Proceedings, 2002
The satellite ground station environment is one in which the availability of the equipment is normally paramount. Satellite contacts may be scheduled at any time and the data being down-linked may be irreplaceable if the equipment in the ground station is not available to receive it.
D.C. Elmore, T.R. Hurd
openaire   +1 more source

Performance testing low voltage ground fault protection

2001 IEEE Industrial and Commercial Power Systems Technical Conference. Conference Record (Cat. No.01CH37226), 2002
The National Electrical Code (NEC) requires ground-fault protection of equipment by devices intended to detect and interrupt low-current arcing phase-to-ground faults on many solidly grounded low-voltage systems having current ratings of 1000 A or greater.
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Analysis of Simultaneous Line-to-Ground Faults

Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1957
A CERTAIN PERCENTAGE of the faults on power systems occur simultaneously at different points in the circuits. Such faults may result from a ground at one location on a circuit which raises the voltage on a healthy phase so that a flashover occurs at a second location.
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Ground-Fault Interrupters

Transactions of the ASAE, 1974
null L. H. Soderholm, null L. F. Charity, null G. R. Olson   +2 more
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Elegant ground-fault solutions for impossible problems

IEEE Transactions on Industry Applications, 2001
Low-voltage power distribution systems are typically grounded by one of two generally accepted methods, high-resistance grounded systems (a derivative of the ungrounded system) and solidly grounded systems. High-resistance grounded systems have gained in popularity due to the fact that the first line-to-ground fault does not cause a disruption of ...
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Double Ground Fault Resistance

2023 Seminar on Fields, Waves, Photonics and Electro-optics: Theory and Practical Applications (FWPE), 2023
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