Title :
An electronic device for increasing the accuracy of high-voltage measuring transformers
Author_Institution :
UTE Lab., Montevideo, Uruguay
Abstract :
A new electronic system to assist high-voltage measuring transformers is proposed. This system compensates the voltage drops in the series impedances, which are the main cause of error in this type of transformer. An adjustment procedure is proposed using a power analyzer as the zero detector. The nonlinear behavior of the magnetizing branch has no influence on the results.
Keywords :
calibration; compensation; measurement errors; measurement standards; potential transformers; high-voltage measuring transformers; power analyzer; series impedances; voltage drop compensation; zero detector; Circuits; Detectors; Frequency; Impedance; Laboratories; Magnetic analysis; Magnetic separation; Resistors; Transformers; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2000 Conference on
Conference_Location :
Sydney, NSW, Australia
Print_ISBN :
0-7803-5744-2
DOI :
10.1109/CPEM.2000.851051
