Basic Electronics and Electrical Engineering: Chapter 3: Transformer
Transformer: Exercise Problems
Basic Electronics and Electrical Engineering: Chapter 3: Transformer : Exercise Problems
Basic Electronics and Electrical Engineering
Chapter 3: Transformer
EXERCISE
PROBLEMS
1. A transformer is
having 1000 turns in the secondary, and 100 turns in the primary winding. If a
voltage of 230 V at 50 Hz is applied across the primary, find the secondary
induced emf. [Ans: E2=2300 V]
2. A single phase, 50
Hz, core type transformer has a core area of 400 cm2 permissible
maximum flux density is 1.18 T. Calculate the number on the high and low
voltage windings for a 3.3 kV/230 V ratio. [Ans:
THV=315, TLV=22]
3. A single‒phase
transformer has 500 primary and 1000 secondary turns. The net cross‒sectional
area of the core is 50 cm2. If the primary winding is connected to a
50 Hz supply at 400 V. Calculate (a) the peak value of the flux density in the
core and (b) the voltage induced in the secondary winding. [Ans: Bm=0.7207 Wb/m2, E2 = 800 V]
Basic Electronics and Electrical Engineering: Chapter 3: Transformer : Tag: Basic Engineering : - Transformer: Exercise Problems
Basic Electronics and Electrical Engineering: Chapter 3: Transformer
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