Answer / pundlik wanwe

A pilot exciter is a small ACgenerator with permanent magnets mounted on the rotor shaft and a 3-phase winding on the stator. It produces the power for the field circuit of the exciter, which in turn controls the field circuit of the main machine.
By using an integral AC exciter the necessity for brushes within the generator has been eliminated. The AC output of the rotating exciter armature is fed directly into the 3 phase, full-wave, rectifier bridge located inside the rotor shaft, which uses high temperature silicon rectifiers. The DC output from the rectifier bridge is fed to the main ac generator rotating field.

Answer / k.prakashchandra

In short ,pilot exciter is for main exciter

what is the formula to calculate the fault level current for any substation?

2 Answers  

---

why Transformer and DG rating capacity is in KVA

4 Answers   ACC,

---

what happen if the secondry winding of the transformer is having less no of turns compare to the primery winding.

2 Answers  

---

what is diffence between synchronus and asynchronus AC motor.?

1 Answers  

---

Can anyone explain the power flow in flouresent lamps (tube lights) .What are the functions of Starter & choke used there?

1 Answers  

---

What is the advantage of AC supply?

5 Answers   PSU,

---

what is power?

1 Answers  

---

why we use ac as a electric appliance in home or daily use?

1 Answers   MNC,

---

How to calculate Voltage regulation of 22 KV Over head Line.

0 Answers  

---

what principle the cabel TV channels are transmitted? will you be able to check the power at the connector behind your TV with a tester?If yes what is the supply level?

1 Answers  

---

how we can varying the speed of dc motor ?

6 Answers  

---

why after termination of HT cable armoured earth connected one end, why not connect other end.pls tell me correct answer.

3 Answers  

---