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Transformer Short & Open Circuit Tests by Randred Garcia is a document available to read on EtoBox.

Here are the steps to solve this problem: a) % VR at 0.866 lagging pf Given: Eoc = 240 V, Esc = 72 V %VR = (Eoc - Esc)/Eoc * 100% = (240 - 72)/240 * 100% = 70% b) Efficiency at full-load condition at 0.7 pf. Given: Rated KVA = 25 KVA Full load = 25 KVA PSc = 380 W, Isc = 10.4 A Zp = ESc/Isc = 72/10.4 = 6.92 Ω Rp = PSc/Isc^2 = 380/10.4

Author

Randred Garcia

Language

EN