Shell Type Transformer are mainly used for

A. High voltage applications 
B. Low Voltage application 
C. None of the above 
D. Both A & B 

Answer 
B. Low Voltage application 

Explanation 
  • shell-type transformers are mainly used for low voltage applications and are very often used in low voltage power circuits as well as in electronic circuits. 
  • These transformers are also used to optimize the expenditure of a circuit since these transformers have square or rectangular cross-sectional cores which costs less.
  • The shell-type transformer has three limbs or legs. The central limb carries the whole of the flux, and the side limb carries the half of the flux. Hence the width of the central limb is about to double to that of the outer limbs. 
  • The primary and secondary both windings are placed on the central limbs.
  • Shell-type transformers are often used where a limited amount of space is available. 
  • Typical applications include the railway industry, where it is beneficial to lay the transformers on top or underneath the carriages without increasing the overall height of the carriage considerably.

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