A 480/120 VAC transformer is used as a power supply. Line voltage to the primary is 510 VAC. Find the line voltage at th
Posted: Fri Jul 08, 2022 6:27 am
A 480/120 VAC transformer is used as a power supply. Linevoltage to the primary is 510 VAC. Find the line voltage at thesecondary. This is wye-delta transformer. [Calculate the phasevoltage at the primary, then the phase voltage at the secondary,which is the line voltage at the secondary because this is a deltasecondary. Answer: 74 VAC.]