Study of an Inductive Sensor for Measuring High Frequency Current Pulses

Author

Rojas-Moreno, Mónica V. ; Robles, Guillermo ; Tellini, Bernardo ; Zappacosta, Carmine ; Martínez-Tarifa, Juan M. ; Sanz-Feito, Javier

Author_Institution

Dept. de Ing. Electr., Univ. Carlos III de Madrid, Leganes, Spain

Volume

60

Issue

5

fYear

2011

fDate

5/1/2011 12:00:00 AM

Firstpage

1893

Lastpage

1900

Abstract

The objective of this paper is to present a simple sensor based on Faraday´s Law together with an integration and amplifying stage and used this for measuring fast current pulses. Its behavior in time and frequency is tested by measuring Partial Discharges (PD) in electric insulation systems following the guidelines given in the standard IEC 60270. The measurements are also taken with two other sensors, a commercial high frequency current transformer and a resistive transducer, with the aim of comparing the results obtained with the proposed probe and obtaining an estimation of its sensitivity. An estimation of the uncertainty of the measurements is also calculated obtaining an error similar to other commercial devices.

Keywords

current transformers; inductive sensors; measurement uncertainty; partial discharge measurement; Faradays law; electric insulation system; high frequency current pulse measurement; high frequency current transformer; inductive sensor; measurement uncertainty; partial discharge measurement; resistive transducer; standard IEC 60270; Current measurement; Frequency measurement; Partial discharges; Prototypes; Pulse measurements; Resistance; Voltage measurement; Differential amplifiers; electromagnetic induction; parameter estimation; partial discharges (PD); pulse measurements; transducers; uncertainty;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2010.2090056

Filename

5641617