Answer / bharatkumar n

Power Factor is the cosine angle between the applied
voltage and the current flow.If the current leads the
voltage(Since the capcitor opposes the rate of change of
voltage, current flows before applying the voltage) it is
leading power factor if currnt lags the voltage (Since the
inductor opposes the rate of change of current, voltage
appears before the current) it is lagging power factor.

Answer / kevin

it is the relation between voltage and current . the
difference is in the capictor has the voltage lagging behind
current . and in the inductive ckt the current lag behind
voltage

What is a LBB protection and why it is used?

2 Answers   Gridco,

---

what is the criterion for selecting vector group of Transformers ? i mean how to decide vector group of Generator transformer, substation trasformer and transformer at consumer end

0 Answers   Areva,

---

In winding design, the angle of chording (β) is nearly equal to A 45 degree B 60 degree C 30 degree D 90 degree

1 Answers   Reliance,

---

how can we Increase the Value Of Frequency in electric circuits

0 Answers   HMK,

---

what is the difference between online & offline caliberation of KWH meters. Can Digital meters be caliberated

0 Answers  

---

For what purpose an AVR in generator sensing generator output voltage?and how the sensing is done by AVR?

3 Answers  

---

what is the value of current as well as voltage upto which we will not feel shock and why?

3 Answers  

---

How to calculate impedance volt in Transformer?

0 Answers  

---

what is power load and lighiting load?

2 Answers  

---

how you connect the induction motor first in star and then delta in star-delta starter

1 Answers  

---

short circuit test of transformer gives what?

9 Answers   NTPC,

---

if one potential missing in energy meter , how much % slow the energy meter?

1 Answers   NTPC, SK,

---