Development of a calculable potential transformer with a wide ratio error of −10 % to +10 % and its application

Author

Kwon, Sung-Won ; Jung, Jae Kap ; Lee, Sang Hwa ; Kang, Jeon Hong ; Kim, Mun-Seog ; Kim, Myungsoo

Author_Institution

Korea Res. Inst. of Stand. & Sci. (KRISS), Daejeon

fYear

2008

fDate

8-13 June 2008

Firstpage

454

Lastpage

455

Abstract

A calculable potential transformer (PT) with a nominal ratio error of -10 % to +10 % has been developed on basis of theoretical calculation of ratio error by the number of primary windings. The developed wide ratio error PT (WRE PT) can be used to evaluate the linearity and accuracy of the PT comparator by comparing both the theoretical and experimental values of the WRE PT. The WRE PT has been applied for the on-site calibration and correction of the PT comparator up to wide ratio error range of -10%to+10%.

Keywords

calibration; comparators (circuits); potential transformers; transformer windings; PT comparator; calculable potential transformer; nominal ratio error; on-site calibration; primary windings; wide ratio error PT; Calibration; Circuits; Error correction; Linearity; Measurement standards; Power industry; Power measurement; Standards development; Testing; Voltage transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements Digest, 2008. CPEM 2008. Conference on

Conference_Location

Broomfield, CO

Print_ISBN

978-1-4244-2399-6

Electronic_ISBN

978-1-4244-2400-9

Type

conf

DOI

10.1109/CPEM.2008.4574849

Filename

4574849