Answer / raghavendran r

A decrease in Excitation Causes
1) Decrease in Terminal Voltage.
2) Increase in Stator Current.
3) Decrease in Power factor.

If further reduced, it might cause Pole slipping and Gen
coming out of synchronism.

Answer / janardhangc

in the case of synchronus generator by varying the
excitationthe teminal voltage can be varied.but in the case
of the motor the speed can be varied because as we know
that speed is invesly propotional to flux or field strength.

220/33kv voltage level having 60MVA rating , which transformer is preferred two winding or auto transformer. why, kindly provide your strong technical valuable views.

1 Answers  

---

how to control the speed to switched reluctance motor

0 Answers  

---

how circuit breaker work.. what is the operations taking place inside a circuit breaker when an overcurrent occurs... is it similar to fuse?

0 Answers   LTT,

---

what ll happen to current if two phases get short circuited

2 Answers   Kirloskar,

---

which relay is better , instantaneous or IDMT relay .

2 Answers  

---

what is importance of ka in mccb

2 Answers   ABB,

---

i have applied for the post of RRB section engineering chennai board please send me previou papers and solved answer. my mail id jagarapusrinivas@gmail.com

0 Answers   RRB,

---

What are the earthing required for commissionthe DG Set?

2 Answers   HSL,

---

What does negative slip of an induction motor signify?

10 Answers   Tata Elxsi,

---

WHAT IS SITTING AMPS IN OVER-LOAD RELAY FOR 1PH OR 3PH MOTORS?IF ITS NAME PLATE GIVEN MAX AMPS 10AMPS?

1 Answers  

---

What happen while we measure the Current in Rotor?

1 Answers  

---

what r the preventive maintenance of air compressor

1 Answers   Jindal,

---