Digital time-domain investigation of transient behaviour of coupling capacitor voltage transformer

Author

Iravani, M.R. ; Wang, X. ; Polishchuk, I. ; Ribeiro, J. ; Sarshar, A.

Author_Institution

Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada

Volume

13

Issue

2

fYear

1998

fDate

4/1/1998 12:00:00 AM

Firstpage

622

Lastpage

629

Abstract

This paper reports a set of digital time-domain simulation studies conducted on TEHMP161A Coupling Capacitor Voltage Transformer (CCVT) of Haefely-Trench. The Electro-Magnetic Transients Program (EMTP) is used to develop the CCVT model and conduct the transient studies. The accuracy of the CCVT model is verified through comparison of the EMTP simulation results with those obtained from test results. The investigations demonstrate that the developed model can accurately predict CCVT transient response, e.g. the phenomenon of ferroresonance. The model is developed (1) to determine impact of transients on CCVT response, (2) to design, optimize and compare protective and ferroresonance suppressor devices of CCVT, and (3) to predict CCVT transient response on power system monitoring and protection schemes

Keywords

digital simulation; ferroresonance; frequency-domain analysis; potential transformers; power engineering computing; power system protection; power system transients; sensitivity analysis; time-domain analysis; transient analysis; transient response; EMTP; Electro-Magnetic Transients Program; Haefely-Trench; TEHMP161A Coupling Capacitor Voltage Transformer; digital time-domain simulation; ferroresonance; ferroresonance suppressor devices; power system monitoring; power system protection; protective devices; sensitivity analysis; transient response prediction; Capacitors; EMTP; Ferroresonance; Power system modeling; Power system protection; Power system transients; Predictive models; Time domain analysis; Transient response; Voltage transformers;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.660947

Filename

660947