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 ? 250 Ω 25 Ω 62500 Ω 6250 Ω 250 Ω 25 Ω 62500 Ω 6250 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following protection is normally not provided on small distribution transformers? Overcurrent protection All of these Buchholz relay Overfluxing protection Overcurrent protection All of these Buchholz relay Overfluxing protection ANSWER DOWNLOAD EXAMIANS APP
Transformers Which type of winding is used in 3phase shell-type transformer? Cylindrical type Rectangular type Circular type Sandwich type Cylindrical type Rectangular type Circular type Sandwich type ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the approximate efficiency of large transformers? 75% 95 % 85% 65% 75% 95 % 85% 65% ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural air cooling is generally restricted for transformers up to 1.5 MVA 50 MVA 15 MVA 5 MVA 1.5 MVA 50 MVA 15 MVA 5 MVA ANSWER DOWNLOAD EXAMIANS APP
Transformers Negative voltage regulation is indicative that the load is inductive only inductive or resistive capacitive only None of these inductive only inductive or resistive capacitive only None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS