Zobrazeno 1 - 10
of 122
pro vyhledávání: '"J. Esztergalyos"'
Autor:
M. Glinkowski, L. Kojovic, C.W. Fromen, R. Kuffel, J. Nordstrom, B. Kotheimer, I. Hasenwinkle, J. Esztergalyos, Mladen Kezunovic, D.A. Tziouvaras, P.G. McLaren, S. Zocholl, D. Dawson, G. Alexander
Publikováno v:
IEEE Transactions on Power Delivery. 15:62-72
This paper reviews a number of mathematical models used to represent the nonlinear behavior of the magnetic core of instrument transformers. Models of instrument transformers using these core representations are presented. The transient response of t
Autor:
K. Kozminski, P. Waudby, P. Solanics, E. Fennell, A.C. Pierce, J. Gardell, S. Patel, J. Williams, V. Skendzic, J. Esztergalyos, C.J. Mozina, M. Bajpai
Publikováno v:
IEEE Transactions on Power Delivery. 15:24-30
Large steel mills can be potentially harsh loads on an electric power system, producing harmonic currents and unbalanced system loading. Since these large loads are typically supplied from the EHV power system grid, it must be recognized that not onl
Autor:
K.R. Carr, R. Marttila, M. Jerosolimski, F.M. Phillips, W.C. Kotheimer, J.L. McElray, D.A. Tziouvaras, B.A. Pickett, Veselin Skendzic, J. Esztergalyos, P.G. McLaren, G. Alexander, R.B. Sollero, Mladen Kezunovic, S.I. Thompson, R.J. Murphy, Mark Adamiak, J. Nordstrom, S.M. McKenna, R. Ryan, G. Chirco, T. Sakaguchi
Publikováno v:
IEEE Transactions on Power Delivery. 13:78-84
Working group F-8 "Digital Simulator Performance Requirements for Relay Testing" of the Relay Input Sources Subcommittee, Power System Relaying Committee, was formed in 1992 with the following assignment: "Investigate performance characteristics of d
Publikováno v:
IEEE Transactions on Power Systems. 13:755-761
This paper presents a feasibility study of using synchronized phasor measurements for improving selectivity of the generator dropping controls at the Colstrip power plant-acceleration trend relay (ATR). The purpose of this study is to evaluate the us
Autor:
M.T. Glinkowski, J. Esztergalyos
Publikováno v:
IEEE Transactions on Power Delivery. 11:763-770
An electromechanical, armature type 50 relay is modelled in EMTP/ATP using TACS. Mechanical, magnetic, and electrical characteristics are represented in the form of simple mathematical models that can provide a useful tool for studying the dynamic re
Publikováno v:
IEEE Computer Applications in Power. 3:19-24
A method is presented for reproducing in the laboratory actual faults that have occurred in the field and generating worst-case-fault waveshapes for the actual power lines being protected. Digitally reproducing faults or system disturbances that caus
Autor:
R.O. Burnett, H.S. Smith, E.T. Sage, A.A. Burzese, D.H. Colwell, C.W. Fromen, R.J. Fernandez, R.W. Dempsey, J.E. Stephens, J.D. Brandt, K. K. Mustaphi, J. W. Pope, R.P. Taylor, G. Nail, M. Lang, W.Z. Tyska, H.N. Banerjee, J. Esztergalyos, A. Politis, C.W. Barnett, J. Fohey, J.A. Bright, R.W. Ohnesorge, E.A. Hauptmann, J.C. Appleyard
Publikováno v:
IEEE Transactions on Power Delivery. 5:85-102
An analysis is conducted of the performance of pilot relay schemes under fault conditions. While it is recognized that this type of investigation can take many directions, the use of relay targets being one such avenue of inquiry, this study concentr
Autor:
B. Kotheimer, G. Alexander, C.W. Fromen, D. Dawson, Mladen Kezunovic, R. Kuffel, S. Zocholl, J. Nordstrom, M. Glinkowski, I. Hasenwinkle, L. Kojovic, D.A. Tziouvaras, P.G. McLaren, G. Swift, J. Esztergalyos
Publikováno v:
IEEE Transactions on Power Delivery. 16:827-828
G. Swift comments on the paper by Working Group C-5 of the Systems Protection Subcommittee of the IEEE Power System Relaying Committee (see ibid., vol.15, no.1, 2000). The author points out an error in the article. The Working Group reply to the comm
Autor:
J. Esztergalyos, M. T. Yee
Publikováno v:
IEEE Transactions on Power Apparatus and Systems. :1814-1825
A new protective relay that solves many of the problems associated with the protection of EHV systems has been developed by ASEA, Sweden. Based on a traveling wave approach the relay system operates at ultra-high speed and can detect and determine th
Publikováno v:
Orvosi hetilap. 115(7)