versión On-line ISSN 0718-0764
VELILLA, Esteban; MUNOZ, John E; RAMIREZ, Edwar A y VALENCIA, Jaime A. Impulse Transfer and Voltage Gain in Single Phase Low Power Transformers. Inf. tecnol. [online]. 2012, vol.23, n.1, pp. 79-88. ISSN 0718-0764. http://dx.doi.org/10.4067/S0718-07642012000100009.
The voltage impulse transferences of 1.2/50μs and 3/23μs from the primary to the secondary winding was tested in three single phase transformers used in electronic applications; two transformers of 85W and 18W, and one autotransformer of 50W were used under no load and under resistive load conditions. The autotransformer showed higher damping and lower peak value in the transferred voltage impulse than the other transformers. The maximum voltage value in the secondary winding was obtained at no load condition and the frequency response of the voltage gain of the transformers between 10Hz and 1MHz were analyzed and fitted to transfer functions to model the voltage impulse transferences. The comparison of experimental results with those obtained from transfer functions in the frequency and time domain provides valuable information about the transferred voltage impulses in single phase transformers.
Palabras llave : single phase transformer; voltage impulse; voltage gain; frequency response; transfer function.