How can we calculate No load and full load torque of
electrical machines, i.e. motor or alternator?
Answer / shoebullah
T= k*sf*R2*E2^2/
R2^2+sf^2*X2^2
Where E2 is induce rotor emf,
Sf is the full load slip and
k=3/2pi*Ns
No load torque :- the torque
develop by the motor under
no load condition is known as
no load torque
| Is This Answer Correct ? | 2 Yes | 0 No |
how many frequent start/stop operation possible in case of HT MOTORS.
what is the VA(Voltampire)? define with calculation?
what will be the effect on a bulb in case its connetion is change from live and neutral to live and ground??? 1) in case of single phase AC supply 2) in case of DC supply.......???
what will happen if dc machine are supplied by ac source??
We have isolation transformer 25kvA & ONLINE UPS 15KvA (3PHASE I/P,3PHASE O/P)where isolation should have connect,before UPS or after please brief.
what is meant by damper winding ?
For 415v,3phase,22kw rating of motor how to calculate MCCB rating
WHAT IS IM (INDEX OF MOUNTING )IN MOTORS
1.What is the range of stator resistance of 3-phase induction motor? 2.Two electrically operated vibro motors are foxed in parallel direction in vibrating feeders. what is the direction of both vibro motors?
what are the values of VRY,VYB,VBR,Vry,Vyb,Vbr,Vrn,Vyn,Vbn for Magenetic balance test of 100 KVA and 63 KVA Distribution transformer
why we are connecting the alternator to a steam turbine of higher RPM then the rated RPM of alternator? For example:( connecting 1500 rpm alternator to 7600 rpm steam turbine). we can directly connect the same rpm turbine to alternator know??? is there any special reason ???
IS THE ANY DIFFERENCE B/W GENERATORS & ALTERNATORS
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)