Interested to Buy Any Domain ? << Click Here >> for more details...
In a synchronous motor armature current flows due to
revolving flux which in turn rotates the load,but in no
load condition armature current is zero hence thr is no
revolving flux then how motor rotates?
- 9 Answers
- 16097 Views
- I also Faced
- E-Mail Answers
Answer Posted / md fakruddin
syn.motor isnot self starting.so we have start with some
other arrangements .one of the best ones is by damper
winding .damper winding is shorted on both side of rotor,as
by induction motor princepal motor rotate itself ,and
magnetic locking between rotor poles and stator occures and
motor runs.at no load armature current is not zero as there
are losses .and there is no relation between armature
current and load because motor hs started already .
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
State ohm’s law?
In HVDC LINE RECTIFIER CONTROL ON CONSTANT CURRENT AND INVERTER CONTROL CONSTANT EXITATION ANGLE CONTROL BUT HOW INVERTER CONTROL CONSTANT CURRENT?
how we can adjust for three phase motor cold stall time ,hot stall time and thermal register set up?
How convergengr of nr method is not dependent on selection of slack bus and how gauss siedel method depends?
in what type of applications v can use q meter?
Form S and "c" license application both are same? @ tneb portal
If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?
On what cycle does thermal power plant operate?
why are distributed windings generally used in alternators?
I NEED RRB APTITUDE QUESTIONS AND MODEL PAPER,PLEASE SEND MY E-MAIL joo28_eee@yahoo.co.in
how to select electrical equipment such as fuse,dg,transformer,motor,msb,wire,cable as per the connecting load..please mention any books to design,take licence
how can I calculate charging current of cable/overhead conductor? what is roll of voltage in it ?
Why power factor should not be in leading (capacitive) mode of any load.
How earthing/grounding done in aeroplanes and ships.
can you any one give exact mathematical relation between AC current and DC current?
