Behaviour of power-factor meters under non-sinusoidal current and voltage

Slomovitz, Daniel

Resumen:

Different types of analogue and digital power-factor meters used for low frequencies are studied. Their errors are calculated when the current or voltage waveform is distorted. It is shown that large errors appear under these working conditions. A new measuring instrument is proposed. It has very small errors, even under highly distorted waveforms, having low-pass filters at the inputs to prevent errors generated by high frequency harmonics.


Detalles Bibliográficos
1991
Inglés
Universidad de la República
COLIBRI
https://hdl.handle.net/20.500.12008/20870
Acceso abierto