Answer / kenn

kw is your true power,kva is your apparent power ,and kvar
is wasted or watt less power

Answer / ekanadam rathod

kvar reactive power (kvar)
kw ia active power, kva is apparent power kw and kva
depends on power fator pf=kw/kva to maintain power factor
unity we should inject to the lone kavr to compansate unity
power factor
for exmample if power factor is unity then the kw=kva
kw=4, kva=4 so 4/4=1 this case kw and kva same
if pf =0.98 then the 0.98=4/4 then the kw and kva will be
different

Answer / shiva prasad

P= POWER
P= V X I X COS@ IN AC
KW = P X 1000
KW= KILO WATT

KVA= IT IS NOTHING BUT KW

KVAR= V X I X SIN@ IN AC

KW= KVA X PF

why we use 11 kv 22 kv and so on ?

1 Answers   Air Force,

---

i want prepare power grid exam what are book we want refer for electrical ?

5 Answers  

---

what is the 2MVA distribution transformer efficiency

1 Answers  

---

At the starting of dc motor and syn.motor and induction motor high current flowing through the winding. Due to this the windings burnt out. To avoid this different types of starters are used. But incase of transformer what Will be used (At starting no emf is induced in the primary winding)?

0 Answers  

---

How can you test the vector group of power transformers?

2 Answers  

---

how can we measure the import power and export power in the same line?

1 Answers  

---

when we start the tube light, then it takes initially 1100 volt, after glow it takes 120 volt?(when we give 220 volt a.c.)

3 Answers  

---

can u tell me the promotion from oiller to enginer

0 Answers  

---

i m in need of current rating chart of heavy duty pvc/xlpe, cu/al cables. can somebody provide me? if yes, plz send me at ashish_patel111@yahoo.com

0 Answers  

---

what is diffrence between neutral and earth wire

23 Answers   Bhel, Esab, MTNL,

---

25 kva load,

1 Answers   Voltas,

---

Why r use in the tap changing x' mer.

2 Answers   L&T,

---