Answer / nithi

if power factor is leading ,this will leads the following.
system voltage increases-more pressure on
insulation-equipment life reduces-insulation break down-
over heating-over fluxing-core saturation-noise in core-
core over heating-may lead to ferroresonance(when resistive
loss is small)this will further complicate the situation-
harmonic production-increased THD-harmonic resonance-
penalty from EB-malfunction of control equipments & switch
gears-if overall system p.f. is leading,result in ferranti
effect-loss of power system costly apparatus-increased
losses-reduction in overall efficiency.
but actually,this will not happen in the power
system due to the presence of varios controls like
FACTS,shunt reactor,series reactor,synchronous condenser..

Answer / karthick

due to lead of power factor it causes the voltage to increase
hence, lows the value of current ,,, due to high voltage it
causes the equipment to damage

Answer / mayuri baradkar

actually the power facter should be leading. because of
leading power factor kva capacity will increase. this will
reduces the power consumsion.so we have to preffer the
capacitor bank in any industrial areas.which will not lagg
the power factor.

how do we calculate length of starting time and repeated starting of a direct online starter?

0 Answers  

---

The unit of resistivity is:(a) ohms(b) ohm millimetre(c) ohm metre(d) ohm/metre

4 Answers  

---

Why squirrel case induction motor bar is skew permanently?

1 Answers   Nesco,

---

what is the use of pmg in exciter?

3 Answers  

---

how wud i know that whether i have to use unitized package substation or transformer?

1 Answers  

---

A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.

0 Answers   VECL,

---

HOW MUCH CURRENT DOES SYNCHRONOUS MOTOR TAKES AT SYNCHRONOUS SPEED IN NO LOAD CONDITION ?

0 Answers  

---

Can clean earth cable be considered as low current cable

0 Answers  

---

what happens in the primary side of the transformer if transformer is short circuited first and increasing the resistance of the short circuit gradually?

3 Answers   Emerson, IIT,

---

How to maintaine ht motor efficiancy

1 Answers  

---

Let's say I have 2 current carrying conductors C1 and C2 carrying currents of 5A and 10A. They are brought close to each other from a distance of infinity to a distance of 10cm away from each other - 1. What would be the values of current flowing in each conductor when (taking into account effects of interference of each conductor on the other) - a. The currents are AC b. The currents are DC c. C1 is AC and C2 is DC Please explain your answer with mathematical equations and formulas. Please specify the final numeric answer. Please make assumptions and clearly specify them.

1 Answers  

---

Describe the method of Plate Earthing.

1 Answers  

---