A study of polyphase watthour meter accuracy comparing single phase series to polyphase calibration

Author

Domijan, A. ; Miller, John ; Knight, R. Don

Author_Institution

Dept. of Electr. Eng., Florida Univ., Gainesville, FL, USA

Volume

8

Issue

4

fYear

1993

fDate

10/1/1993 12:00:00 AM

Firstpage

1712

Lastpage

1720

Abstract

This paper examines the accuracy of polyphase watthour meters derived from two methods of calibration. The standard single phase series method is compared to the three phase method of calibrating polyphase transformer rated and self-contained induction type watthour meters. A total of seventy two meters from four different manufactures are tested. Sixty of these meters are tested at full load, full load with 0.5 lagging power factor and light load for each of the calibration methods. Twelve meters are further tested over a greater range of loading conditions. Also, the effect of rotating the phase of the input conductors on the meter´s accuracy is examined

Keywords

calibration; load (electric); power measurement; power system measurement; testing; watthour meters; accuracy; calibration; full load; lagging power factor; light load; polyphase watthour meter; single phase series method; three phase method; Calibration; Conductors; Manufacturing; NIST; Power electronics; Power system measurements; Reactive power; Student members; System testing; Watthour meters;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.248278

Filename

248278