Q. A single-phase, 10-kVA, 2300:230-V, 60-Hz, two-winding distribution transformer is connected as an auto transformer to step up the voltage from 2300 V to 2530 V.
(a) Draw a schematic diagram of the arrangement showing all the voltages and currents while delivering full load.
(b) Find the permissible kVA rating of the auto transformer if the winding currents are not to exceed those for full-load operation as a two winding transformer. How much of that is transformed by electromagnetic induction?