2.16. A 25-Hz, 120-V/30-V, 500-VA transformer is to be used on a 60-Hz source. Ifthe core flux density is to remain unchanged, determine (a) the maximum permissible primary voltage, and (b) the new (60-Hz) rated secondary voltage and current.
(a) By (2.9), the primary voltage will vary directly with frequency. Hence, maximum primary voltage = 60 (120) = 288 V
Save your time - order a paper!
Get your paper written from scratch within the tight deadline. Our service is a reliable solution to all your troubles. Place an order on any task and we will take care of it. You won’t have to worry about the quality and deadlinesOrder Paper Now
rated V2 =
60 (30) = 72 V
= 16.67 A (same as at 25 Hz)