why inductancce of armature inductance of dc machines is
neglected?
Answers were Sorted based on User's Feedback
Answer / suantak
The inductive reactance offered by an inductor or coil is
null when a dc current pass through it. The reactance
offered by the armature of dc machine is zero, considering
an ideal dc current withough harmonics (in fact a small
amount of reactance will exist due to harmonics).
This is may be the reason why armature inductance is
neglected. Please note that this is my view and it is not
from any book, journal or publication.
Is This Answer Correct ? | 6 Yes | 8 No |
Answer / srinath
even though there is presence of inductance(L=FLUX LIKAGES PER
AMPERE),there is no indicative reactance b/c we are on
operating on d.c.That's we neglect it
Is This Answer Correct ? | 0 Yes | 5 No |
what is the voltage between the earth & neutral 2 is there any continuity TO BE between earth & NEUTRAL
if flux and load static in dc motor and supply voltage increases 20% then what happened in speed
What is application of isolation transformer & How it works.
Why do u join toreent power ?
why single CT used in DOL starter power circuit?
What is the importance of quality factor in resonance?
is it possible for different brand of H.V transformers to run or operate in parallel to each other? if so how much disturbance can this affact the H.V bus bar?
Why did call copper as a electrical conductor?
how unidirectional torque is produced in DC motor?
How can we measure the residual voltage in dc machines?
A group of machines (wind turbines) connected with 33KV feeder and each machines are having individual VCB. The 33KV feeder connected with 110KV/33KV substation. The 33KV feeder tripped by over current at Substation and fault recorded at Substation as OC-R&Y phase. Same time the group of machines VCB tripped by over voltage, the fault recorded voltage was above 66KV by numerical Under/Over voltage relay. While grid drop time, this much of voltage hike is possible?
what is Different between Bilinear and Unilenier?