Digital models of coupling capacitor voltage transformers for protective relay transient studies

Author

Kezunovic, M. ; Kojovic, Lj ; Skendzic, V. ; Fromen, C.W. ; Sevcik, D.R. ; Nilsson, S.L.

Author_Institution

Texas A&M Univ., College Station, TX, USA

Volume

7

Issue

4

fYear

1992

fDate

10/1/1992 12:00:00 AM

Firstpage

1927

Lastpage

1935

Abstract

The authors describe the development by EPRI of digital coupling capacitor voltage transformer (CCVT) models that are intended for digital simulation of fault transients. Experimental techniques for laboratory measurements of the CCVT parameters are outlined. A sensitivity study was performed to identify the influence of various CCVT parameters on the transient behavior relevant for the relaying studies. Digital models of three different CCVTs are given and their transient behavior is compared to the behavior of the actual transformers

Keywords

digital simulation; potential transformers; power system analysis computing; power system protection; relay protection; transients; EPRI; coupling capacitor voltage transformers; digital models; digital simulation; fault transients; laboratory measurements; protective relay transient studies; sensitivity study; Capacitors; Circuit faults; Digital relays; EMTP; Power system modeling; Power system transients; Protection; Protective relaying; Senior members; Voltage transformers;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.156996

Filename

156996