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Showing posts with label Design of Transformer Questions. Show all posts
Showing posts with label Design of Transformer Questions. Show all posts

29/03/2020

Design of Transformer Interview Question Answer - 8


106
Which type of core construction is preferred in the large power transformer?


Cruciform core

Design of Transformer Interview Question Answer - 7


91
Which type of winding is used for core type transformer?


Winding in the Core type transformer
  • Helical
  • Double helical

Design of Transformer Interview Question Answer - 6


76
Why the transformer winding is solidly braced to core of the transformer?


If the transformer winding is not solidly braced to core of the transformer, the mechanical forces on winding may damage whole transformer during short circuit.

Design of Transformer Interview Question Answer - 5


61
Explain the term : Barriers


Barriers
  • It is partition of solid insulating materials inside oil ducts.

Design of Transformer Interview Question Answer - 4


47
Why the clamp less core construction is preferred in the cold rolled oriented steel core?


Clamp less core construction
  • The clamp type core construction distorts the flux path and increases the eddy current therefore the clamp less core

Design of Transformer Interview Question Answer - 3



32
Describe the effect of number of steps on copper loss of the transformer.


Number of steps
  • As the number of steps increases, the length of mean turns of winding also reduces.

Design of Transformer Interview Question Answer - 2



16
Why the tertiary winding is connected in delta?


Tertiary winding in delta connection
  • The tertiary winding is connected in delta because the unbalance phase voltage may be compensated by circulating

Design of Transformer Interview Question Answer - 1



1
Whether the transformer is the energy conversion device?


No