Answer / anil rohilla

Since the pf of transformer is dependent on load
We only define VA rating and does not include pf.
Inspite this in motors pf depend on construction and hence
rating of motors is in KWatts and incude pf.

Answer / naveen kumar

Temperature rise depends on losses which in turn depends on voltage and current rating..... so V*I
By the by we don't know the pf of load to express it in KW

Answer / rishabh jadia

Transformer ratings are in kva becoz total
losses in transfomer only depends on voltage
and current but they do not depends on phase
angle between them i.e. power factor (pf).

Answer / jignesh prajapati

because,
N1/N2=I1/I2=V2/V1

how to wiring it with contactor and timer together

0 Answers  

---

6 MVA transformer secondary is rated for 725V at no load. The incommer ACB is rated at 690 V, 3200 Amp. Would there be any effect on performance of ACB due to lower voltage rating?

5 Answers  

---

why star 2 delta or delta to star preferred mostly then star to star and delta to delta ?

1 Answers  

---

On wat basis TSM & PSM are set? Example.TSM=30% n PSM=2.5A....Hw they are set and how we come to know that the particular relay should be set to this value only?

2 Answers  

---

a governer in an Ic engine controls the

0 Answers   Caterpillar,

---

ho w to make Incident and accident reporting

1 Answers  

---

why, when birds sit on transmission lines or current wires doesn't get shock?

36 Answers   College School Exams Tests, Infosys,

---

Can any one tell me the current VAT, Sales Tax, Octroi and Excise duty for the financial year 2009 -2010. Say control panels are manufactured in maharashtra, then what will be the taxes for within Maharashtra and outside Maharashtra?

1 Answers  

---

how to difference between the HT&LT cables

1 Answers   L&T,

---

which one has maximum efficiency autotransformer or transformer?? and why??

2 Answers  

---

What is the Different b\w Circuit Breaker & Isolater

11 Answers  

---

If a motor of 8.5 KW with same load and using in both Star & Delta one by one,then which will take more current in star connected or in delta connected

4 Answers  

---