Answer / deepak24

Iron Losses = (Kh x Phi^1.2 x F) Watt/M^3
Where Kh - Hysteresis Constant
Phi - Flux
F - Frequency

in above equation Kh, F are constant & Phi increase only 1 to 5% from No load to full Load. Hence Iron Losses are practically constant at all loads.

why voltage drop if we have connected 230 v ac suplly through diode to bulbe we found haft ie 110 voltage drop why it is

4 Answers  

---

What is the difference between KW & KVA ?

10 Answers  

---

How many types of Differential protection are there? and what the special arrangement are made at the time of charging of a transformer on the Differential protection?

1 Answers  

---

What are types of losses in the Transmisson Lines ?

4 Answers   GE,

---

Why reverse relay used

2 Answers   cpgn,

---

what is use of lockout relay in ht voltage

2 Answers  

---

what is skin effect and corona discharge ?

4 Answers   Asian Paints,

---

why transmition and distribution and genaration of voltage in multible of 11 means 220v,440v,11kv,22kv,,,...so on

3 Answers  

---

If a generator of generating station produces 100MW rated output then what will be the rating of the step-up transformer connected to it?

5 Answers  

---

132 KV TRFO BUSHING BURNT WHEN A 6.6KV HAS BEEN APPLIED TO IT .WHY .ANY REASON ?

2 Answers   MRF,

---

What is effect of over voltage and under voltage on ACB

0 Answers   EFS,

---

Safety of on line ups

0 Answers   Bhushan Power Steel, GE,

---