What will be the direction of rotation of a Alternator in case
it goes in motoring action when connected with grid ?
Answers were Sorted based on User's Feedback
Answer / balaji
it will rotate in same direction as earlier
|Is This Answer Correct ?||15 Yes||1 No|
Answer / rm
the direction of rotation is anticlockwise due to motoring
|Is This Answer Correct ?||12 Yes||9 No|
Answer / sukriti kiran
the direction of rotation wont change because the phase
sequence of the supply remains same as before(generator is
connected to infinite bus bar) , for magnetic locking field
poles develop torque in the same direction as before
|Is This Answer Correct ?||2 Yes||0 No|
Answer / arvind kumar
IT WILL NOT ROTATE,BECAUSE FOR LARGE MACHINE ARMATURE
WINDING IS PLACED on STATOR AND FIELD WINDING ON ROTOR,the
field winding is exited by dc.THE OUT PUT IS DRAWN FROM
STATOR,IN CASE ARMATURE WINDING WHEN CONECTED WITH GRID THEN
DUE TO INVERSE OF FARADAY LAW ELECTROMAGNETIC INDUCTION THE
ARMATURE WINDING WHICH IS PLACED ON STATOR EXPRIENCES TORQUE
under the influence of flux priduced by field winding,but
this is not possible to rotate the stator.for motoring
action is possible in small ac machine in which armature
winding is placed on rotor and field winding on stator
...read p.s bhimra page 239
|Is This Answer Correct ?||0 Yes||1 No|
Answer / prashant kumar
alternators direction of rotatin is generally acw as it
rotates due to action of prime mover (steam,water)but when
accidently when it is connected with grid supply it stars
getting heavy curent to its wndg and starts motoring action
by rotating in cw(opposite) direction and its wndg gets
burned as it is designed for generation not for motoring action
|Is This Answer Correct ?||1 Yes||5 No|
what is the difference between capacitive voltage transformer & inductive voltage transformer.
In a house wiring why we are using only one neutral wire and so many phase wires from the main board, when the load is common for both wires?
Why stand-by earth fault relay and restricted earth fault relays are connected between neutral and ground in transformer?
What mean power grid fail. why power grid fail.
SMPS (Switch Mode Power Supply) unit is denoted by KW or KVA?
what will happen if delta - star , 400V to 6.6KV step up transformer neutral is not grounded, Neutral is not used but transformer is provided with neutral.
What value(high/low) of diversity factor is desired in power system and why? How such value is achieved?
what is the function of a circuit breaker ?how does the circuit breaker function during normal operation of an electrical system
What is boucholz relay and the significance of it in to the trformer?
why Current is lead 90 degree and voltage is lag 90 degree in a capacitor.? why Current is lag 90 degree and voltage is lead 90 degree in an inductor.?
What is the restart inhabit setting in ABB spam150c relay (Motor protection relay)
what is legal process of dg set?