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

What do you meant by slip power recovery?

1 Answers   PSEB,

---

What are the effects to a distribution transformer rated 10Kv with ratio 10Kv/0.433Kv, 3phase 50hz for example but fed with power supply of 11Kv?

2 Answers  

---

how to calculate ups and battery rating

2 Answers  

---

Dear All kindly let me know that I know about the DG Rating for Example 150 KVA,Now how i will know that how much Ampher load it can offoard.

2 Answers  

---

What kind of earthing method can be useful for ships and boats ?

0 Answers   GE,

---

explain the existence of reactive power in electrical engg?when it generates?

1 Answers  

---

DIFFERENC BETWEEN VOLTAGE AND CURRENT

1 Answers   Wipro,

---

why square root 2 is multiplied with line voltage in selection of LA ie 11/sqrtroot3=6.35 kv and it is multiplied with sqrt2 ie 6.35 KV*sqrt2=8.9 kv we will select 9kv.my question is why we are multiplying with sqrt 2?

1 Answers   KSPL,

---

What is the current carrying capacity of 1.5 rm and 2.5 rm cable

1 Answers   RFL,

---

What will happen to the speed of synchronous machine subjected beyond the pull out torque? Are the behavior shown by rotor remains same for both the alternator and motor?

1 Answers  

---

What effect does a very low impedance have on the Voltage regulation? On the short-circuit current?

0 Answers  

---

Difference between ELCB and RCCB?

5 Answers  

---