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 are the types of earthing? Explain dagramatically.

3 Answers   Siemens,

---

what is the difference between active power and reactive power and apparant power in practical as well as theoritical

0 Answers  

---

Whag is the PS class of accuracy of CT?

3 Answers  

---

WHY ARMAD USE IN CABLE

4 Answers  

---

What is the reason of polyphase induction motor tripping suddenly on high current during running at 70% laod? Motor IR , winding resistance & inductance balance. Motor no load current is balance and ok as per mgfr. data.

0 Answers   GNFC,

---

What are steps to be taken while designing of DYN11 distribution transformer to achieve magnetising balance?

0 Answers  

---

What is the frequency of dc current????

4 Answers   SCS,

---

what is difference between 2 pole structure and 4 pole structure in transformer yard

0 Answers   Hospira,

---

for hipot test on 33kV busbar, we will test on 70 kV or 56kV, what is the acceptable leackage current?

0 Answers  

---

what is the difference between ac and electric

1 Answers  

---

To prove the capacity of a 10MVA transforemr with 6.5% impedance by a short circuit test how much power is needed to inject an impedance voltage if we have to arrive for its rated current?

0 Answers  

---

what is the circulate the diesel in DG in side pls tell parts name and picture with circulate the diesel

0 Answers   Mukand,

---