Method to measure CVT transfer function

Author

Ghassemi, F. ; Gale, P.F. ; Clegg, B. ; Cumming, T. ; Coutts, C.

Volume

1

fYear

2002

fDate

25-25 July 2002

Abstract

Summary form only given, as follows. In this paper the results of tests on a 275 kV and a 400 kV capacitor voltage transformer are presented. The objective has been to determine the transfer function of the CVTs in the Scottish Power EHV system, which in turn they can be used to compensate for errors at harmonic frequencies. As a primary requirement, the magnetic elements of the CVTs must be excited at nearly their nominal magnetic states. A test procedure is presented, which does not require CVT disassembling and/or modelling and ensures that the above essential requirement is satisfied. The effects of burden on the frequency response are also be presented. It is confirmed that the size and mature of burden affect the CVT frequency characteristic.

Keywords

compensation; potential transformers; power capacitors; power system measurement; power transformer testing; transfer functions; 275 kV; 400 kV; EHV power systems; Scottish Power; capacitor voltage transformer; harmonic frequency errors compensation; magnetic elements; nominal magnetic states; test procedure; transfer function measurement; Capacitors; Frequency response; Power system harmonics; Testing; Transfer functions; Voltage transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Society Summer Meeting, 2002 IEEE

Conference_Location

Chicago, IL, USA

Print_ISBN

0-7803-7518-1

Type

conf

DOI

10.1109/PESS.2002.1043300

Filename

1043300