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

How many current ratings of MCB's are in the market? e.g: 1A, 2A, .......upto.

4 Answers  

---

While testing the 33KV Busbar by using Hipot kit, what should be the test voltage we have to apply

2 Answers  

---

Hello sir This is prakash from bangalore i have a doubt why we have to maintain DG power factor in the range 0.78 to 0.8 Perhaps i f it is increased means what will happen in DG

3 Answers  

---

Where is the best place to mount  distribution panel in a house.

0 Answers   Wantro Technical Services,

---

what is mean by hormonics & surge? and it's effects?

1 Answers   TCS,

---

hy i need help with LabView, I need a sample code of LabView to download serial data from the Intellivue Patient Monitor to PC. Thank you in advance.

1 Answers  

---

what is motor

6 Answers   HBL Power Systems,

---

what types of load we get from the national grid? is this capacitive or inductive?

1 Answers  

---

why an ac solenoid valve attract the plunger eventhough we interchanges the terminal?will the ploes changes?

1 Answers  

---

What is reactive power?

7 Answers   Suzlon,

---

1. If we apply dc supply to the primary winding of transformer it will be burnt out. similarly dc supply is given to field winding of syn. motor and armature winding of dc motor, they are safe. (Remember both windings inductive nature) what is the reason behind that?

2 Answers  

---

How to calculate Busbar Thickness for Different type of HT/LT panels

1 Answers  

---