Specification of New Test Waveforms for Static Electricity Meters

Abstract

Recent observations of significant errors in static electricity meter readings have created a need for specification of new standard immunity test waveforms. This paper provides an overview of ongoing signal analysis work towards parsimonious specification of suitable test waveforms including candidate methods for signal representation, feature extraction and feature selection.

Wavelet-Based Sparse Representation of Waveforms for Type-Testing of Static Electricity Meters

“…Since the immunity of meters to sinusoidal distortion is already sufficiently addressed by the existing standards and the focus of the article is solely on impulsive disturbances, following up on the study performed in [29] the DWT is chosen for the present application, proving to be effective and efficient for the task.…”

Electromagnetic interference on static energy meters due to residential emissions

“…The great suitability of wavelet transforms for compressing transients and pulses is well recognised, thanks to their good localisation in frequency and time, and to the capability of concentrating a great share of the signal information in very few coefficients [114]. Therefore, following up on the study performed in [115] the discrete wavelet transform (DWT) is chosen for the present application, proving to be effective and efficient for the task.…”