Title :
Sampling techniques applied to the derivation of impedance characteristics for use in power-system protection
Author :
McLaren, P.G. ; McConnach, J.S.
Author_Institution :
Queen´s College, Department of Electrical Engineering, Dundee, UK
fDate :
3/1/1965 12:00:00 AM
Abstract :
Impedance is measured by sampling the voltage and current magnitudes. The sampling period is 50¿s, and the point at which sampling takes place is measured from either the current or the voltage zero. Compound impedance characteristics can be achieved by sampling at a number of points in each halfcycle.
Keywords :
electric impedance measurement; relay protection; transistor applications;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19650010
