the total iron closs in a transformer core at normal flux density was measured a

the total iron closs in a transformer core at normal flux density was measured at 25hz and 5ohz and was found to be 250w and 800w respectively.the hysteresis loss at 50hz would be................?????

Question Posted / shahjahan

1 Answers
6824 Views
ABB, I also Faced
E-Mail Answers

the total iron closs in a transformer core at normal flux density was measured at 25hz and 5ohz and ..

Answer / utkarsh agarwal

according to the data flux density is constant.
Pe1=f1^2 Ph1=f1
Pe2=f2^2 Ph2=f2

takinf f1=25hz
f2=50 hz
Pe1/Pe2=1/4
Ph1/Ph2=1/2

now iron loss Pi=Ph1+Pe1
Therefoe
1. ph1 + pe1=250
2. 2ph1+ 4pe1=800
solving we get ph2= 200w

P.S. : "=" is meant to be proportiaonality sign in first 3 lines

Is This Answer Correct ?

8 Yes

1 No

Post New Answer

More Electrical Engineering Interview Questions

why h parameter are called as hybrid parameter?

0 Answers

what are the highly demanded courses for electrical engg. who finished his b.tech

2 Answers

why using eleven's multiple for substations?

2 Answers

how fan speed decrease or increase by using regulator? thank you

3 Answers

What is the minimum distance to be maintained in between HT panel and LT panel and Instrument panel as per IEC and NEC standards?

0 Answers

What transistor level design tools are you proficient with? What types of designs were they used on?

1 Answers Intel, Jindal,

What should be the minimum and maximum ohmic value for earthing?

2 Answers

Define de-sensitivity?

0 Answers

Name the instruments which run on DC?

2 Answers

What is DC power factor??

2 Answers HCL,

what is the formula to calculate the distance between one phase to another phase in single phase line and 3 phase line for different volt for example ; 33kv, 11kv ,22kv,230v

1 Answers Suzlon,

why do we carry out winding resistance test?

0 Answers MahaGenco, MAHINDRA,

For more Electrical Engineering Interview Questions Click Here