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Solving overvoltage protection problems by means of an analogue computer

Journal Article:

Abstract

The importance of improving overvoltage protection and reducing insulation level for voltages of 525 and 765 kV is fully realized. A digital computer may be used to determine, according to the Bergson procedure, the voltage distribution at different points of a given network but this procedure is very time-wasting. An analogue simulation is described, which, by giving an instantaneous display of the overvoltage wave on the screen of a cathode ray oscillograph, is better suited for the overvoltage protection study and satisfies also the conditions related to wave reproducibility. The method of simulating inductors, capacitors, and lightning arrestors (by using transistors) is shown and special emphasis is put on the surge generator analogue for which thyration tubes are used in order to get a linear front-increase of the impulse testing wave. The results obtained are accurate within 1 to 2% as compared with calculated values. Ten figures and seven references are given.
Authors:
Publication Date:
Mar 21, 1964
Product Type:
Journal Article
Reference Number:
EDB-80-027784
Resource Relation:
Journal Name: Bull. Schweiz. Elektrotech. Ver.; (Switzerland); Journal Volume: 55
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; EHV AC SYSTEMS; OVERVOLTAGE; ANALOG SYSTEMS; CALCULATION METHODS; LIGHTNING ARRESTERS; POWER TRANSMISSION; AC SYSTEMS; ELECTRICAL EQUIPMENT; EQUIPMENT; POWER SYSTEMS; 200301* - Power Transmission & Distribution- AC Systems, EHV & UHV- (-1989)
OSTI ID:
5778147
Country of Origin:
Switzerland
Language:
German
Other Identifying Numbers:
Journal ID: CODEN: BUSKA
Submitting Site:
TIC
Size:
Pages: 256-260
Announcement Date:

Journal Article:

Citation Formats

Stephanides, N. Solving overvoltage protection problems by means of an analogue computer. Switzerland: N. p., 1964. Web.
Stephanides, N. Solving overvoltage protection problems by means of an analogue computer. Switzerland.
Stephanides, N. 1964. "Solving overvoltage protection problems by means of an analogue computer." Switzerland.
@misc{etde_5778147,
title = {Solving overvoltage protection problems by means of an analogue computer}
author = {Stephanides, N}
abstractNote = {The importance of improving overvoltage protection and reducing insulation level for voltages of 525 and 765 kV is fully realized. A digital computer may be used to determine, according to the Bergson procedure, the voltage distribution at different points of a given network but this procedure is very time-wasting. An analogue simulation is described, which, by giving an instantaneous display of the overvoltage wave on the screen of a cathode ray oscillograph, is better suited for the overvoltage protection study and satisfies also the conditions related to wave reproducibility. The method of simulating inductors, capacitors, and lightning arrestors (by using transistors) is shown and special emphasis is put on the surge generator analogue for which thyration tubes are used in order to get a linear front-increase of the impulse testing wave. The results obtained are accurate within 1 to 2% as compared with calculated values. Ten figures and seven references are given.}
journal = {Bull. Schweiz. Elektrotech. Ver.; (Switzerland)}
volume = {55}
journal type = {AC}
place = {Switzerland}
year = {1964}
month = {Mar}
}