Answer / shahnawaz akhter

kva meaning its rating in transformer cu loss depend on
current and iron loss depend on voltage not in phase angle
between voltage and current that's why transformer rating
in kva not kw.

Answer / sujeet

Actually, a machine's rating depends on the type of load and
since the load of a transformer can be real as well as
reactive.Hence the rating of the transformer is given in KVA
not in KW( for mechanical loads only).

Answer / bala

There is no fixed load to supply power from transformer.The
load can change at any time thats why kva used.

Answer / neeraj malik

As there are two types of losses in a t/f i.e core losses that
depends on voltage of the t/f and ohmic losses that depends on
current of the t/f.Thats why due to these losses we take the
rating of a t/f in kVA

what type of transformer used in soft ware parks its distribution or power transformer. like 1800 kva

3 Answers  

---

what is potentiometer & rheostat

3 Answers  

---

what is the purpose of interpose t/f in control and relay ckts?

2 Answers  

---

what is the rating of boiler?

4 Answers  

---

what are the alternator cooling system? how it is represented?

1 Answers  

---

why the measure taken in multiplication factor of 11for voltage like.. 110V,220V,440V,1.1KV,6.6KV,11KV,33KV,66KV,110KV,132KV,220KV

1 Answers   Vijai Electricals,

---

what is the formula for transformer oil?

1 Answers  

---

in 50 mw generator if field is open in full load running condition what happen and for protection which relay used?

5 Answers   century,

---

what is plunger and what's the use of it in motor alignment?

0 Answers   CLZ, Yahoo,

---

State the other types of Air Conditioners?

0 Answers   HSL,

---

What are the different protection systems takes place on control panel board?

7 Answers   BSNL,

---

What are the various reasons for an inductin motor to get heated?

1 Answers   Monnet,

---