Compensación De Errores En Transformadores De Corriente Usados En Redes De Alta Tensión (Error Compensation Of Current Transformers Used In High Voltage Networks)

Alejandro Santos (asantos@ute.com.uy), Daniel Slomovitz (d.slomovitz@ieee.org)


UTE ‑ Laboratorio, Montevideo, Uruguay
This paper appears in: Revista IEEE América Latina

Publication Date: May 2006
Volume: 4,   Issue: 3 
ISSN: 1548-0992


Abstract:
An error compensation technique for measuring current transformers is described. It uses only passive components. An example is shown for current transformers installed in I50 kV switching devices. Initial ratio errors in the order of 4% and phase shifts around 20 min were reduced to 0.1% and 6 min after the compensation. The transformer with the compensation fulfils class 0.2 according to IEC standards.

Index Terms:
Accuracy, Compensation, Current transformers, Error   


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