Transformers Distribution transformers are generally designed for maximum efficiency around Zero load 50% load 90% load 25% load Zero load 50% load 90% load 25% load ANSWER DOWNLOAD EXAMIANS APP
Transformers The turns ratio required to match an 80 source to a 320 load is 20 4 80 2 20 4 80 2 ANSWER DOWNLOAD EXAMIANS APP
Transformers If a transformer core has air gaps, then, _________ Eddy current is increased Hysteresis loss is decreased Magnetising current is greatly increased Reluctance of magnetic path is decreased Eddy current is increased Hysteresis loss is decreased Magnetising current is greatly increased Reluctance of magnetic path is decreased ANSWER DOWNLOAD EXAMIANS APP
Transformers The eddy current loss in a transformer is directly proportional to _______. The supply frequency Square of thickness of core lamination Thickness of core lamination The flux density in the core The supply frequency Square of thickness of core lamination Thickness of core lamination The flux density in the core ANSWER DOWNLOAD EXAMIANS APP
Transformers The short circuit test helps us to find Cu loss at any desire load Iron loss at no load Cu loss at no load None of the listed here Cu loss at any desire load Iron loss at no load Cu loss at no load None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Power transformers are generally designed to have maximum efficiency around near full-load no-load 10% overload half-load near full-load no-load 10% overload half-load ANSWER DOWNLOAD EXAMIANS APP