What will happen to transformer if we gave 5HZ input instead of 50/60Hz??? exp

What will happen to transformer if we gave 5HZ input instead
of 50/60Hz??? explain with reason

Question Posted / cuterazi69

2 Answers
4779 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

What will happen to transformer if we gave 5HZ input instead of 50/60Hz??? explain with reason..

Answer / devendra chaturvedi

if we gave transformer 5 hz instead of 50/60 hz at constant i/p voltage than B(max.flux density) increases t a very high value which saturates the core,increases the core losses to a very high value which may damage the core and transformer

Is This Answer Correct ?

6 Yes

0 No

What will happen to transformer if we gave 5HZ input instead of 50/60Hz??? explain with reason..

Answer / 7anoter4

Since V=K*B*frq [V= primary supply voltage -approx.
equal to E-emf]; B=magnetic flux density ; frq=frequency]
then if frq=5 Hz and V=constant B[5Hz]=10*B[50 Hz].The no-
load[excitation] current will be more than 300% rated
current.

You have to reduce the voltage to 10% from rated at 50 Hz
in order to get the same B.

Is This Answer Correct ?

3 Yes

2 No

Post New Answer

More Electrical Engineering Interview Questions

motor and transformer working with same principle so why motor rotor was roted and transformer not roted

9 Answers ABB, Suzlon,

Why and when NGR panel required. Is it necessary to design a NGR panel for a 6.6kV Alternator paralleling with Grid????

0 Answers

What is the definition of ohms law?

7 Answers AZ Engineering, Ecil,

Define stepper motor. What is the use of stepper motor?