Power transformers have rating

Related MCQs

• Power transformers should be designed to have maximum efficiency
• For large power transformers, self oil cooled type or air blast type which of the following values of current density may be used ?
• A current density of _____ is ilsed for large power transformers with forced circulation of oil or with water cooling coils
• Transformers with a capacity of upto _____ have a cooling radiator system with natural cooling
• Aluminium when adopted as a conductor material in ______ transformers, decreases the overall cost of the transformer
• In transformers using hot rolled steel, the cross-section of the yoke is made about _____ greater than that of the core
• Cylindrical windings using circular conductors, employed in transformers, are
• Multi-layer helical windings are commonly used in the transformers as high voltage windings
• The heat dissipating capability of transformers of ratings higher than 30 kVA in increased by providing which of the following ?
• The forced oil and air circulation method is usual one for transformers of capacities