Simulación y medición de transitorios en Cambiadores de Tomas bajo Carga (Simulation and measuring transients in On-Load Tap Changers)

Juan C. Castro (, Gloria S. Lagos (, Orlando A. González (

1Universidad Pedagógica y Tecnológica de Colombia
2Universidad Pedagógica y Tecnológica de Colombia - Uptc

This paper appears in: Revista IEEE América Latina

Publication Date: Oct. 2017
Volume: 15,   Issue: 10 
ISSN: 1548-0992

On-Load Tap Changers (OLTC) generate transients in power transformer voltage regulation, these transients are analyzed to determine the OLTC condition, and find malfunctions in order to prevent system failures. OLTC conditional analysis is so relevant, because 40% of power transformers failures in the world come from failures in this device. This paper take data from a distribution transformer and a OLTC under maintenance, for transient simulations of a changing Taps, and compare them with some laboratory experiments taking transient measuring signals.

Index Terms:
On–Load Tap Changers (OLTC), Voltage regulation, Power Transformer, Transient Analysis   

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