Multi-layer helical windings are commonly used in the transformers as high voltage windings

Related MCQs

• A practical formula for determining the thickness of insulation between low voltage and high voltage windings is
• Helical windings are used in
• The insulation between windings and grounded core and the insulation between the windings of the same phase is called
• Cylindrical windings using circular conductors, employed in transformers, are
• is universally used for windings of electrical machines because it is easily workable without any possibility of fracture.
• Disc windings are primarily used in
• The cylindrical windings using circular conductors are used for current rating of
• For 275 kV transformers, using cold rolled grain oriented steel, which of the following values of flux density may be used?
• For large power transformers, self oil cooled type or air blast type which of the following values of current density may be used ?
• By which of the following methods the temperature rise of windings and other parts may be determined ?