Answer / k.prakashchandra

Yes.By varying the excitation i.e. the terminal voltage.If
the voltage of the generator is more than the grid
voltage ,the pf will be lagging and the vice versa.But the
pf has to be maintained at 0.9 to 0.98 lag ,for system
stability.A poor pf results in higher armature current
which is also not desirable

Answer / mohammad afzal

yes, we can correct the p.f of ac generator by manually
varying the volatage of generator and exciting current of
the field rotor. the recommended range of the p.f should
between 0.9 to 0.98 lagging. poor p.f more armature current
and increase in temperature of stator which is not
desirable.

why in the three pin plug all 3 pins are cutted ?

0 Answers  

---

why current is denoted by I

7 Answers   CTS, GCT, Samtel,

---

how many wires need to be bring to the motor if its star delta starter

5 Answers  

---

which meter used to measure a flus

2 Answers   RRB,

---

what is ground clearence in transmission system.is it varies wit conductor size,height of poles,span.

1 Answers  

---

what is the soft starter principle? how is connection diagram? what is the procedure for checking the connection?

0 Answers   Siemens,

---

if two heater of rating 1KW,200v are connected in series 100v supply what will be the power taken

1 Answers  

---

What is the Diff. btw Manule Pull Station & Manule Abort Station Switches used in FM200 System??

0 Answers   Emerson,

---

hi friends how 3 phase converter functioning ?what is working principle of rotory phase converter ?

0 Answers  

---

What is the Minimum winding resistance of motors ( small & big)? referance range

0 Answers   TATA,

---

What is basic impulse insulation level? And how it is calculated for sub- station?

2 Answers  

---

In n high voltage 11kv system What happened if 1 of CT cable (IDMT) loose.Will e/f or o/c trip.please explain detail

1 Answers  

---