Interested to Buy Any Domain ? << Click Here >> for more details...
why slipring motor , at full speed run as squirrel cage motor?
- 1 Answers
- 4205 Views
- I also Faced
- E-Mail Answers
Answer Posted / tariq mahmood
The slip ring or wound rotor motor is an induction machine
where the rotor comprises a set of coils that are terminated
in slip rings to which external impedances can be connected.
The stator is the same as is used with a standard squirrel
cage motor.
The slip ring motor is used primarily to start a high
inertia load or a load that requires a very high starting
torque across the full speed range. By correctly selecting
the resistors used in the secondary resistance or slip ring
starter, the motor is able to produce maximum torque at a
relatively low current from zero speed to full speed. A
secondary use of the slip ring motor, is to provide a means
of speed control. Because the torque curve of the motor is
effectivley modified by the resistance connected to the
rotor circuit, the speed of the motor can be altered.
Increasing the value of resistance on the rotor circuit will
move the speed of maximum torque down. If the resistance
connected to the rotor is increased beyond the point where
the maximum torque occurs at zero speed, the torque will be
further reduced.
NOTE:
The all above said characteristic of slip ring motor is due
to slip ring as well as due to external resistance. All
characteristic are related to is starting period or for
speed control. when we disconnected the resistance from the
circuit then slip ring motor and induction motor will be
same. So, hope the reason, "why slipring motor , at full
speed run as squirrel cage motor" will be cleared.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
please I wont know how to calculate the vector group for power transformer ZNyn11 best regard.
why the projects getting loss?
xpression 'document.FrmQF.myemail' [
please send me the L&T Emb. sys. placement papers and entire details of pattren
How can we checked Killo Watts of Motor & Alternator?
Why do we need a separate control desk & PLC control panel in Boiler plant or coal handling plant? Can we provide cost effective Control desk cum PLC panel. Is there is an specific need for control desk.. kindly advice.
How to test the vector group of a Yd11 transformer? what are the relations to be checked between various vectors to confirm this vector group?
how to increase senstivity of ct
how can i get an electrical c-certificate?
Motor,transformers,capacitor tubelight etc....
why starting current is high and resistance is almost 0 during the starting of motor dc motor...?
How can we increase the capacity of Energy.?
10 tube light connect in mcb breaker.one tube light is fault.so breaker is tribe.how fault is rectified.(using 3wire phase,earth,neutral)
Can you explain about Restricited earth fault protection scheme
how withstand of hi-pot test outputs of transformer wire 2.5mm
