Answer / k.prakashchandra

APFC is employed when the gen is connected to grid and the
grid voltage is continually fluctuating,so that the pf
remains constant, as otherwise the operator has to vary the
excitation every now and then.But with this mode gen voltage
may rise if the grid fails.

Answer / k.prakashchandra

I mean APFC mode of the excitation system not the one with
capacitors.

in a induction motor if we put capacitor across it will the power factor of the motor will improve? if yes how

6 Answers   Reliance,

---

How can we calculate strength of copper hich is supplying electric power to heater and in it hold the heater also and what r all types of forces which is acting on it...

0 Answers   ABB,

---

How to define Kirchhoff current law and voltage law along with simply examples.

0 Answers  

---

whu the transformer noise during running condition?

1 Answers   NTPC,

---

Shall we get electrical shock if we touch the positive terminal of a 230 volt dc supply?

22 Answers   Essar,

---

What is servo motor and what are the applications of servo motor?

0 Answers   BARC,

---

what is the funtion of conservator in transformers?

7 Answers  

---

25 kvar capacitor , how much current ? For 25 KVAR--Capacitor I = ?

3 Answers  

---

Which machine u will prefer to use at where flameble gases are comming out & why?

1 Answers   NTPC,

---

in 220/132 substation in place of PT what equipment used & what r the role of that equipment

2 Answers  

---

what is ACB and its function?

3 Answers  

---

what types of electrical & mechanical test conducted in switchyard?

0 Answers  

---