Answer / rakesh

There will be delayed commutation , for the brushes are
still in interpolare axis , but due to the armatut=re
reaction the point of 0 flux density gets displaced in the
direction of rotation of the generator , hence the armature
coils after crossing the brushes wil still remain under the
polarities of the trailing poles , hence again a rotational
emf will be generated which again opposes the current
reversal in the commuted coil , thereby causing delayed
commutation , it is for this reason that the interpoles are
designed with the same polarites as the main oles behind it
in the direction of the rotation in case of generator , and
opposite is the case with a motor.

Define peak overshoot.

0 Answers  

---

why we use salt for earthing?

1 Answers  

---

What are the point of a single core cable to be earthed?

2 Answers   Alfanar, Jindal,

---

i have a 4 Mva transformer 34.5 kv / 480-277 v and i used 2 parallel 3200 amp bus duct for the secondary feeder using 3 ply of bus bar ( 3/8" x 5" ) as a common where the flexible link terminated and 6300 amps breaker for the main, the lower bus duct reaches 70 degrees and the upper bus duct reaches 55 degrees when i used thermal scanner. why the temperature is not balance when the load reaches 3600 amps.

0 Answers   SCM,

---

difference between Ac and Dc mcb ????

0 Answers  

---

which phase is preferred for connecting 1 phase vt used for synchronizing OHL? WHY?

0 Answers   Siemens,

---

what is the main different between distribution transformer and power transformer ?

7 Answers   Sail,

---

How to Make relay co ordination chart for a Electrical power distribution of a plant

0 Answers  

---

What is the function of NGR for the parallel operation of alternator? whats happen when different rating of alternator are running with parallel?

0 Answers   Welspun,

---

how to apply b license to c license in tneb

0 Answers   Billroth Hospitals,

---

What is the difference between Floot charge and Trickle Charge.

1 Answers   Torrent Power,

---

Why Earth pits are inter connected

8 Answers   Airtel, Taj Group,

---