Answer / ebrahim

POWER FACTOR=TRUE POWER IN WATTS/APPARENT POWERIN KVA


It should be noted that power factor, like all ratio
measurements, is a unitless quantity.
For the purely resistive circuit, the power factor is 1
(perfect), because the reactive power equals zero. Here, the
power triangle would look like a horizontal line, because
the opposite (reactive power) side would have zero length.
For the purely inductive circuit, the power factor is zero,
because true power equals zero. Here, the power triangle
would look like a vertical line, because the adjacent (true
power) side would have zero length.
The same could be said for a purely capacitive circuit. If
there are no dissipative (resistive) components in the
circuit, then the true power must be equal to zero, making
any power in the circuit purely reactive. The power triangle
for a purely capacitive circuit would again be a vertical
line (pointing down instead of up as it was for the purely
inductive circuit).

Answer / raul

P.F. = KW/KVA= ACTIVE POWER/ APPARENT POWER

Answer / k.prakashchandra

Not possible

why rotor resistance starter is not suitable for squrielcage induction motor?why it is suitable for slipring induction motor?

5 Answers  

---

How many types Switchgears?

4 Answers  

---

hi friend i am going too attend for hpcl in this month please help me by sending written test question papers i am in the stream of E.E.E

0 Answers   HPCL,

---

what is the benefit of floating our DC source? if i have two floating DC source of which 1 has a ref voltage of -21VDC and the other of -18VDC. can it be connected in parallel to share a common ref voltage? if not, how do i make both sources to be of common ref voltage? tks

0 Answers  

---

write encoder 17 pins details? pin a;b+, pin b;w+,..pin s & t. what is the meaning of b+, w+? explain;

0 Answers  

---

Why capacitor bank is not neccessery to switch on,pls answ me with formula

2 Answers  

---

Explain the Term in CT Name Plate – Class: 5P10

6 Answers   Jindal, SRES,

---

what are the major & minor faults that occur in an inverter and in UPS ? And how to repair and resolve them ?

0 Answers  

---

Ehat is shunt motor?

4 Answers   L&T, Siemens,

---

why ht line fuse wire is so thin

7 Answers   DLF,

---

whether the generating voltage can be made to be transmitted by means of signals to the recieved end or at the consumers end?

6 Answers   TCS,

---

Why the ceiling fan has three blades, why not two,four or five?

4 Answers  

---