Results 251 to 260 of about 148,160 (292)
Some of the next articles are maybe not open access.
High Resistance Grounding—Avoiding Unnecessary Pitfalls
IEEE Transactions on Industry Applications, 2007The high resistance grounding (HRG) of 480-4160-V industrial power systems increases service continuity, enhances personnel safety, and reduces equipment damage when a ground fault occurs. HRG allows maintenance personnel to quickly and safely locate a ground fault while avoiding unscheduled downtime.
David Murray +3 more
openaire +1 more source
2016
The value of the ground resistance is a very important factor to be considered for reliable operation of electrical appliances at home, industry and commercial buildings. The ground resistance essentially provides three important characteristics, namely (i) zero potential reference for the electrical system, (ii) low resistance path to protect ...
Md. Abdus Salam, Quazi M. Rahman
openaire +1 more source
The value of the ground resistance is a very important factor to be considered for reliable operation of electrical appliances at home, industry and commercial buildings. The ground resistance essentially provides three important characteristics, namely (i) zero potential reference for the electrical system, (ii) low resistance path to protect ...
Md. Abdus Salam, Quazi M. Rahman
openaire +1 more source
IEEE Transactions on Industry Applications, 1983
High-resistance grounding of electrical power systems offers many of the advantages of both solidly grounded systems and ungrounded systems, including practical suppression of transient overvoltages, practical reduction of equipment damage due to ground fault, and the ability to continue to operate a system with a ground fault present on one phase. The
openaire +1 more source
High-resistance grounding of electrical power systems offers many of the advantages of both solidly grounded systems and ungrounded systems, including practical suppression of transient overvoltages, practical reduction of equipment damage due to ground fault, and the ability to continue to operate a system with a ground fault present on one phase. The
openaire +1 more source
Android tool to evaluate grounding resistance
2015 IEEE International Telecommunications Energy Conference (INTELEC), 2015In the absence of sources of rapidly varying field, the study of the potential distribution determined, in a linear medium, by a geometrically complex grounding may be conducted by applying the method of superposition of the effects, known as method of subareas of Maxwell.
VIOLA, Fabio +5 more
openaire +2 more sources
2018
The determination of the specific resistance of representative soils taken from tthe surface strata of the Salt Lake Valley, with varying water contents, was the problem confronting the writers at the beginning of the investigation. In the following thesis an attempt is made to explain the methods used in the exact solution of the problem stated above,
openaire +1 more source
The determination of the specific resistance of representative soils taken from tthe surface strata of the Salt Lake Valley, with varying water contents, was the problem confronting the writers at the beginning of the investigation. In the following thesis an attempt is made to explain the methods used in the exact solution of the problem stated above,
openaire +1 more source
Calculation of grounding resistance
Electric Power Systems Research, 1984Abstract This paper introduces an algorithm for the calculation of grounding resistance based on the boundary element method (or current simulation method). A series of computer results for different kinds of grounding systems is presented. On the basis of the computer results, an evaluation is made of commonly used formulas for grounding resistance ...
openaire +1 more source
High Resistance Neutral Grounding [History]
IEEE Industry Applications Magazine, 2012The last two decades of the 19th century witnessed a rising interest in electrical power projects and a heated debate about using direct current (dc) or alternating current (ac) systems as the backbone of generating and transmitting power. The debate escalated and it was dubbed the "War of Currents." By 19th century measurements, the Niagara Falls ...
Barry Brusso, Rasheek Rifaat
openaire +1 more source
Calculation of resistances to ground
Electrical Engineering, 1936Formulas for practical use in the calculation of the resistances from grounding conductors of variou forms to the earth are given in this paper and their use illustrated by examples. The accuracy of the formulas varies considerably, as discussed in the paper, but is sufficiently good that the methods should be helpful to those whose work involves ...
openaire +1 more source
MV generator low-resistance grounding and stator ground fault damage
Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting., 2003Most 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
openaire +1 more source
Prediction of Soil Resistivity and Ground Rod Resistance for Deep Ground Electrodes
IEEE Transactions on Power Apparatus and Systems, 1980A technique for the prediction of soil resistivity and ground rod resistance for deep ground electrodes has been developed. The method extrapolates limited test ground rod data to a factor of up to ten times the known depth values. The technique has been shown to accurately predict the effectiveness of installing deep ground electrodes and the ...
openaire +1 more source