Title :
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
fDate :
5/1/2011 12:00:00 AM
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;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2010.2090056
