A 600-V AC voltage amplifier for power measurements

Author

Waltrip, B. ; Laug, O. ; Nelson, T.

Author_Institution

Nat. Inst. of Stand. & Technol., Gaithersburg, MD, USA

fYear

2014

fDate

24-29 Aug. 2014

Firstpage

80

Lastpage

81

Abstract

A voltage amplifier comprised of three, cascaded, -10:1 gain sections has been developed to extend the voltage range of primary electric power calibrations from 120 V to 600 V over the 50 Hz to 400 Hz frequency range. The gain and phase errors of each amplifier section are continuously measured and corrected in-situ using a permuting impedance measurement technique. The amplifier design approach, measurement principles, and initial performance results are presented.

Keywords

amplifiers; calibration; electric impedance measurement; error correction; measurement errors; measurement standards; power measurement; voltage measurement; AC voltage amplifier design approach; frequency 50 Hz to 400 Hz; gain error measurement; permuting impedance measurement technique; phase error measurement; power measurement; primary electric power calibration; voltage 120 V to 600 V; Decision support systems; Hafnium; Calibration; error correction; feedback amplifier; measurement standards; measurement techniques; power measurement; voltage measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on

Conference_Location

Rio de Janeiro

ISSN

0589-1485

Print_ISBN

978-1-4799-5205-2

Type

conf

DOI

10.1109/CPEM.2014.6898268

Filename

6898268