Answer / gourav jaswal

kw is actual power.
kva is apprent power.
The main diffrence b/w these two is power factor,
kw = kva * p.f
Normaly p.f cant be calculated before in any AC system, so
that it measured in kva.
Same as in case of t/f its also have rating in kva (not in kw)

Answer / vinod

KW is the actual converted power from the used electrical
power.
KVA is the apparant power ie. the product of voltage and
current.in the presence of power factor the KVA value limit
the use of power equipments. for low pf the machine will be
over loaded for rated out put KW.

Answer / vinoth

simple when a motor having some ratings ex: 7.5 kw motor
used the same power from the incomer.the volt,current rating
not changed. but transformer having kva rating because the
volt range constant and the current range is default so
thats only we use kva rating in tr and kw in motors.

what is stray loss in transformer?

19 Answers   Vijai Electricals,

---

what is feeder bay?

0 Answers  

---

Purpose of lighting transformer.

2 Answers  

---

what is the clearances between phease to phease & phease to earth in 400 kv transmission line?

1 Answers   Lanco,

---

please give me solution to rectify the emi(electromagnetic interference)

0 Answers   Powergear,

---

---

HOW CIRCUIT BREAKER RATING CALCULATED?WHAT ARE THE PARAMETERS CONSIDERED?

5 Answers  

---

110 KW MOTER DOL STATER 240SQ.MM CABLE MOTER AND STARTER DISTANCE IS 110 METER WHAT IS VOTAGE IN MOTER END AND SYSTEM VOTAGE IS 415 V HOW I CAN CALCULTE

2 Answers  

---

what is mean by PID & Principal of working

6 Answers  

---

why r we using shell transformer for low voltage

0 Answers  

---

why only 11kv level is used for transmission purpose? why not 230v?

7 Answers  

---

For 6600/433 distribution transformer we apply secondary side 433 volts how much voltage in primary side.

2 Answers  

---

which one is rotating transformer-single phase induction motor or 3 phase squirrel cage motor?

1 Answers  

---