Answer / sachin kudachi

Pf is nothing but power factor. And it is defined as cosine of the angle between the applied voltage and current in any electrical circuit. So from this sentence or definition nobody can easily understand the actual concept of power factor.

Power factor plays an important part every were in an electrical circuit. Now considering an inductive load of a induction motor we say that , the pf is lagging and if the load is capacitive then we term pf to be leading.


An inductive load affects the power system supply voltage by lagging the pf drastically, so to improve the pf we can use capacitors, synchronous motors, or phase advances.

But the best way to deal with this stuff is to make limited use of inductive loads. So that we can reduce the losses quite easily.

Answer / siddeshwar

power factor of an AC electrical power system is defined as the ratio of the real power flowing to the load.

The simplest way use a filter that passes current only at line frequency (50 or 60 Hz). The filter consists of capacitors or induction coils. This process is called PFC.
It means Power Factor Correction.

What is the function of capacitor in electrical circuits?

0 Answers  

---

what is the clear formula to calculate cable size for a load

0 Answers   TCS,

---

how can we Increase the Value Of Frequency in electric circuits

0 Answers   HMK,

---

What are methods to avoid the inrush current at the time of starting of power transformer ?

8 Answers   Wipro,

---

what are balanced and unbalanced loads

1 Answers   GGH,

---

How many no of flip-flops are required to get 16 bit counter

10 Answers   HAL,

---

what is the concept of directional power?

0 Answers  

---

how to find total current when kva is 30.4 given ? should we use root 3 (1.732) in the formula?

2 Answers  

---

what is the isolation transformer. what is the isolator?

0 Answers  

---

In VSD (variable speed drive)I/P and O/P connections given wrongly what will happen?

5 Answers  

---

How to calculate Earth busbar size & what is the procedure we make for determine that?

1 Answers  

---

what type of relay has to be used for tripping the circuit from mains when a fault occur in a machine

3 Answers  

---