Calibration of non-conventional instrument transformers

Author

Crotti, G. ; Giordano, D. ; Cherbaucich, C. ; Mazza, P.

Author_Institution

Ist. Naz. di Ricerca Metrol., Torino, Italy

fYear

2012

fDate

1-6 July 2012

Firstpage

558

Lastpage

559

Abstract

The paper focuses on the calibration techniques of non-conventional voltage and current measurement transformers. Calibration circuits set up at INRIM are described, which makes use of digital acquisition and numerical analysis of the transducer output. Examples of calibration of non-conventional instruments to be used as on-site references are discussed, which include a system based on Rogowski coil for live-on-site check of measuring current transformers with rated voltages up to 380 kV.

Keywords

calibration; electric current measurement; numerical analysis; transducers; transformers; voltage measurement; INRIM; Rogowski coil; calibration circuits; current measurement transformer live-on-site check; digital acquisition; nonconventional current measurement transformer calibration techniques; nonconventional instrument transformer calibration techniques; nonconventional voltage measurement transformer calibration techniques; numerical analysis; on-site references; transducer output; Calibration; Current measurement; Current transformers; Instrument transformers; Optical sensors; Uncertainty; Voltage measurement; Calibration; High voltage.; measurement standards; measurement uncertainty; non-conventional instrument transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM), 2012 Conference on

Conference_Location

Washington, DC

ISSN

0589-1485

Print_ISBN

978-1-4673-0439-9

Type

conf

DOI

10.1109/CPEM.2012.6251051

Filename

6251051