Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Eung-Bo Shim"'
Publikováno v:
Journal of Systemics, Cybernetics and Informatics, Vol 6, Iss 2, Pp 71-76 (2008)
In recent years, we have seen several catastrophic and cascading failures of power systems throughout the world. Power system breakup and blackouts are rare events. However, when they occur, the effects on utilities and general population can be quit
Externí odkaz:
https://doaj.org/article/8d9743bbc72e46e0820732c1c567ec1f
Autor:
Eiichi Zaima, Eung-Bo Shim
Publikováno v:
Journal of Electrical Engineering and Technology. 10:1293-1297
This paper introduces the insulation coordination study results for UHV AC systems which was performed by CIGRE working group. The study results will be discussed within IEC technical committee in order to amend the IEC Insulation Coordination 60071-
Publikováno v:
Journal of International Council on Electrical Engineering. 2:1-5
Substation Automation System is basically operating throughout communicative services among IEC 61850 based devices. So, minimum requirement in order to install the system in the substation is to verify server and client conformance. This study aims
Publikováno v:
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers. 22:118-125
The outages of transmission lines give big damages to the industrial world Lightning outages occupy above 50[%] among the outages of transmission lines. To decrease the lightning outage rates, it is necessary to try countermeasures considering econom
Publikováno v:
Journal of Electrical Engineering and Technology. 1:427-434
This paper analyzes arc phenomena including the secondary arc's elongation in the Korean 765kV single transmission line (79km) between Sin-Ansung S/S and Sin-Gapyeong S/S, which will be installed in Korea in June 2006. In particular, both frequency i
Publikováno v:
IEEE Transactions on Power Delivery. 15:381-386
This paper presents the results of the air clearance design on the KEPCO 765 kV double circuit transmission system. At first the authors performed the switching overvoltage study. The switching overvoltage was analyzed by EMTP (Electro-Magnetic Trans
Publikováno v:
2011 International Conference on Electrical Machines and Systems.
IT technology development led to introduce automation systems in the substation. But, it was difficult for IEDs to communicate each other because there were different protocols over 152 kinds. Therefore, IEC 61850 for the substation was standardized.
Autor:
Jong-Ho Park, Yong-Hak Kim, Jin-Hee Han, Eung-Bo Shim, Won-Seok Choi, Yong-Hark Shin, Chul-Hwan Choi
Publikováno v:
2011 International Conference on Electrical Machines and Systems.
To develop large-scale electricity industry continuously, Power systems are requested to be high confidence. And digital & automation-based technology is needed over the length and breadth of power system management. As a result of this, IEC 61850, w
Publikováno v:
IEEE Transactions on Power Delivery. 15:1348-1350
A. Ametani comments on the paper by J.H Kim et al. (see ibid., vol.15, no.1, p.381-6, 2000). The author briefly describes his own work on overvoltage evaluation using EMTP on a 1100 kV transmission line of Tokyo Electric Power Company and asks the or
Publikováno v:
2009 Transmission & Distribution Conference & Exposition: Asia and Pacific.
The paper deals with the cost evaluation concerning the implementation of a 2000MW HVDC link over a 200km distance. Two different dc voltages have been considered, namely +/−300kVdc and 500kVdc. Two different scheme configurations have been conside