what happen when ac motor is connected with dc current
- 4 Answers
- 6912 Views
- I also Faced
- E-Mail Answers
Answer Posted / anthony
1)motor won't run since the ac motors operate on
distributed winding principle in which there is a continous
shift of magnetic priority in space and since dc is not
having any phase sequence , it won't run at all .
2) the problem with dc is that the value of dc current is
always constant . hence the I*2 R losses(Watts)continue to
remain constantly at the same value and when multipied by
the time "t" , would give us a heat liberated of (I*2* R*t)
joules whch wil continue to build up with time for a
constant load drawn . this will cause burning of the
winding.
| Is This Answer Correct ? | 24 Yes | 0 No |
Post New Answer View All Answers
A 11KV, 1200 A breaker combination fixed in a cubicle for HT motor.Is normally for 11 KV motor fuse is using? if Yes, What range fuse is required?
Explain the propagation of harmonics in the network and influence of phase angle of harmonics.
If only R Phase is connected in 2 pole elcb, n is not connected than it will work or not in ground fault.
What is a advantage of Self Reset Lockout ? On Fault breaker get trip & fault no longer exist then self reset lockout how inform us?
if sf6 gas low in gis what will happen
What happens to a line-frequency of high-frequency transformer when it is first energized/ re-energize?
How much ph is maintained of water resistance starter for slipring induction motor ?
sir vizag steel ka junior trainee ka paper kitne number ka ayega
What type of DC motor would you see for a lift?
A cotter joint is generally used to transmit
What is the practical way to calculate the cable size for known ampere load?
If a transformer primary winding operates at 240v, the secondary at 120v and the load is 1500w & the transformer is rated at 92% efficient, what's the current flowing through the primary winding of the transformer? What is the formula for finding this?
State the methods of improving power factor?
What is Meter MF if External CT Ratio is 150/1 , PT Ratio is 132/110 Meter CT Ratio is 200/1 & Meter PT Ratio is 110/1
main difference between ac and dc?
