Answer / arfan bhutto

The PMG provides power for the excitation of the exciter
field through automatic voltage regulator (AVR).
As PMG rotates,magnatism produces AC voltages.this AC
voltages given to AVR.
The output of AVR is DC voltages.

what is the maximum permissible limit value of leakage current and leakage counter reading to replace lightining arrester?

0 Answers  

---

What is eddy current & eddy current loss ?

2 Answers  

---

why motor starting current is High ?

11 Answers   Bhel, Jindal,

---

CBCT selection

0 Answers  

---

Can the efficiency of transformer be measured with the help of wattmeter readings taken at primary and secondary side? Support the answer.

2 Answers  

---

which is more dangerous AC\DC supply

3 Answers  

---

100 MVA 3-phase alternator with earthed neutral has a reactance of 5 ohms per phase. what will be the fault MVA of generator.

0 Answers  

---

protection used for alternator , feeder , transmission line

3 Answers   NHPC, Perfetti,

---

why occ characteristics curve in not tracing back when we are bringing back the rhoestat?

0 Answers  

---

Can RCD's used to protect the VVVF drive if not why.

0 Answers  

---

what is fundamental difference between voltage and current

5 Answers  

---

which braking is used in traction motor and what is its working send at mukeskumar27@hotmail.com

2 Answers  

---