Title :
Shielded Electronic Current Transformer
Author :
Slomovitz, Daniel ; de Souza, Heriguati
Author_Institution :
Departamento de Ingenieria Electrica, Univ. de la Republica, Montevideo
Abstract :
A current transformer with nominal ratio 10 A to 10 mA, intended for low frequencies applications, was developed. It includes an electronic device to reduce the magnetizing current, and a continuos shield in the secondary winding in order to eliminate the effect of stray capacitances. These lead to high accuracy results (ratio errors and phase-displacements in the order of 10-6). It is proposed to leave the cable-shield potential floating
Keywords :
current transformers; transformer windings; 10 A; 10 mA; electronic device; magnetizing current; shielded electronic current transformer; Cable shielding; Capacitance; Coaxial cables; Conductors; Current transformers; Frequency; Magnetic flux; Resistors; Transformer cores; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2004 Conference on
Conference_Location :
London
Print_ISBN :
0-7803-8494-6
Electronic_ISBN :
0-7803-8494-6
DOI :
10.1109/CPEM.2004.305364
