If 3-phase transfomer configuration in figure in has the givens as listed below: E-line on high side = 480V, turns ration = 2:1/coil, resistance per load =10, efficienscy = 100%. E/coil on the high side is _____, E/coil on the low side is___, E-phase on the low side is____,
If 3-phase transfomer configuration in figure in has the givens as listed below:
E-line on high side = 480V, turns ration = 2:1/coil, resistance per load =10, efficienscy = 100%.
E/coil on the high side is _____, E/coil on the low side is___, E-phase on the low side is____, E/resitor of the load is____,(a-480v, b-240v, c-120 d-69.28v) I/resitor on the load is____, I-line on the low side is___, I-phase on the low side is____, I/coil on the low side is____(a-2A b-4A c-6.93 d-12A), I-phase on the high side is____, I-line on the high side is____(a-1A b-1.73A c-2A d-4A), Va/phase of the load is____, 3-phase Va on the high side is____(a-120VA b-360VA c-480VA d-1440VA).
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The coils on the high voltage side are connected in series and the coils on the low voltage side are connected in parallel. Windings on both high voltage and low voltage side are connected in delta.
A: The line voltage applied on the high voltage side is equal to the phase voltage on high voltage side because the windings are connected in delta. The voltage per coil on the high voltage is equal to the half of the voltage phase voltage because both coils are connected in series on high voltage side. Thus, the voltage per coil on the high voltage side is given by:
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