Design of a non-invasive current sensor for application on high voltage lines

Author

Houtzager, Ernest ; Rietveld, Gert ; Dessens, J. ; Heemskerk, M. ; van den Brom, Helko E.

Author_Institution

VSL, Delft, Netherlands

fYear

2014

fDate

24-29 Aug. 2014

Firstpage

624

Lastpage

625

Abstract

This paper describes the design and construction of an openable core current transformer (CT) to be used on high-voltage lines or busbars. The current sensor consists of a high current stage with a ratio of 400:1 and a low current stage with a ratio of 100:1. Both have a toroid core and are of the enhanced core type. The high current stage is cut in two halves to be able to connect without breaking the high voltage line. The overall accuracy is limited by the cut core of the high current stage. The accuracy is <; 10 μA/A and <; 5 μrad.

Keywords

busbars; current transformers; electric current measurement; electric sensing devices; high-voltage techniques; power overhead lines; busbars; current transformer; high-voltage line; noninvasive current sensor design; toroid core; Accuracy; Current measurement; Current transformers; Permeability; Transformer cores; Voltage measurement; current transformer; high current; high voltage (HV); precision measurements; revenue metering; substation; traceability;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on

Conference_Location

Rio de Janeiro

ISSN

0589-1485

Print_ISBN

978-1-4799-5205-2

Type

conf

DOI

10.1109/CPEM.2014.6898540

Filename

6898540