A 1000 A/20 kV/25 kHz-500 kHz Volt-Ampere-Wattmeter for loads with power factors from 0.001 to 1.00

Author

Clarke, Kenneth K. ; Hess, Donald T.

Author_Institution

Clarke-Hess Commun. Res. Corp., New York, NY, USA

Volume

45

Issue

1

fYear

1996

fDate

2/1/1996 12:00:00 AM

Firstpage

142

Lastpage

145

Abstract

Many industrial processes and scientific experiments utilize large amounts of ac power at frequencies from 3 kHz to 500 kHz. The phase angle and the impedances of these loads often vary over a wide range. This paper describes an instrument to provide an accurate measurement of currents (1 A to 1000 A), voltages (100 V to 20 kV), and powers (100 W to 20 MW) over the frequency range from 25 kHz to 500 kHz. It deals with loads having power factors down to nearly zero and with load impedances from 10 Ω to 20 kΩ. The paper contains practical details of both the design and the calibration of the front-end voltage and current transducers. The characteristics of a nearly ideal broadband current transducer are presented. Overall instrument calibration, verification and traceability problems are considered in detail

Keywords

calibration; electric current measurement; power measurement; transducers; voltage measurement; wattmeters; 1 to 1000 A; 10 ohm to 20 kohm; 100 V to 20 kV; 25 to 500 kHz; ac power; broadband current transducer; calibration; capacitive attenuator; design; front-end voltage transducers; impedances; industrial processes; phase angle; scientific experiments; traceability; verification; Calibration; Frequency; Impedance; Instruments; Plasma applications; Plasma measurements; Reactive power; Transducers; Voltage; Wattmeters;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.481326

Filename

481326