Transformers Natural air cooling is generally restricted for transformers up to 50 MVA 15 MVA 1.5 MVA 5 MVA 50 MVA 15 MVA 1.5 MVA 5 MVA ANSWER DOWNLOAD EXAMIANS APP
Transformers If a transformer has 50 turns in the primary winding and 10 turns in the secondary winding, what is the reflective resistance if the secondary load resistance is 250 ? 6250 Ω 25 Ω 62500 Ω 250 Ω 6250 Ω 25 Ω 62500 Ω 250 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer, under heavy loads, is comparatively low because secondary output is much less as compared to primary input copper loss becomes high in proportion to the output voltage drop both in primary and secondary becomes large iron loss is increased considerably secondary output is much less as compared to primary input copper loss becomes high in proportion to the output voltage drop both in primary and secondary becomes large iron loss is increased considerably ANSWER DOWNLOAD EXAMIANS APP
Transformers The dielectric strength of transformer oil is expected to be 100 kV 33 kV 330 kV lkV 100 kV 33 kV 330 kV lkV ANSWER DOWNLOAD EXAMIANS APP
Transformers Power transformers are generally designed to have maximum efficiency around half-load 10% overload near full-load no-load half-load 10% overload near full-load no-load ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following is not a part of transformer installation? Conservator Breather Exciter Buchholz relay Conservator Breather Exciter Buchholz relay ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS