Answer / san

self excieted in this type of generator field coil
excitisation voltage is tapped from armature.
seperately excited gen field coil is connected to
battery or exciter .

Answer / lokesh

Self exited does not require external power souce where as
seperately excited requires external power source for the
excitation.

Answer / g.kiran kumar

for seperatly execited machines an external d.c source is
required to exicte the field coils to emmit the flux.where
in case of self exicted an induced emf induced by the
armature is supply to the field coils.(THERE MUST EXIST
RESIDUEL FLUX IS PRESENT IN FIELD WINDINGS FOR SELF EXICTED
MACHINES)

why earth hole size is biggest in plug point?

13 Answers   RRB,

---

What is Servo Ventilated Motor?

0 Answers   L&T,

---

What is difference between safe PLC and normal PLC

0 Answers  

---

What are the basic elements used for modeling mechanical translational system?

0 Answers  

---

why 6.6,11,22,33,66kv? what basis they have considered?

5 Answers  

---

Hello, im taking an introduction to PLC..and i'm having a hard time on creating a program for 2 lamps blinking alternately with this button characteristics: 1.) One push button (starts upon pressing) 2.) Same push button (when pressed again, will pause the system) 3.) Same push button (when pressed again, will continue the paused system) 4.) Same push button (when pressed within 2 seconds, will shut off the system) Pls..i know this is just a simple problem for you guys..

2 Answers  

---

what is importance of ka in mccb

2 Answers   ABB,

---

WHAT IS REACTIVE POWER?

2 Answers  

---

pls send me some question and answer for rrb railway interviw related 2010

2 Answers   CEAT, RRB,

---

what is differance between PT-100 and thermocouple?

1 Answers  

---

Hi i want to know that in generation station what we are generate either voltage or current

1 Answers  

---

In LRS how much water PH value maintain for good operation of motor?

3 Answers  

---