- #1
I_am_learning
- 682
- 16
After a refresher about basic principle of Induction motor, I realized that the torque developed by induction motor is
[tex]\tau[/tex] = P[tex]{gap}_[/tex] / [tex]\omega[/tex][tex]{s}_[/tex]
Where P[tex]{gap}_[/tex] is amount of power crossing air gap from the stator to the rotor.
In case of wound rotor motors, starting torque can be increased by temporarly connecting external resistors in the rotor winding. However no such method is available in case of squiral cage.
I am currently thinking that keeping in view the above equation, it should be possible to increase the starting torqe by decreasing [tex]\omega[/tex][tex]{s}_[/tex]. So, it decrease it, no of poles should be increased. Although I haven't currently thought of specific winding and switching mechanisim, do you think it might be possible to achieve higher starting by say temporarly switching a 2-pole machine to 4-pole machine during starting?
Edit: sorry for the misaligned 'latex'. I tried but couldn't make it work. Why do you call it latex? Because you use latin words? And also isn't the admin reasearching on more intutive and easier method for 'latex'. Sorry, if I questioned things out of my business.
[tex]\tau[/tex] = P[tex]{gap}_[/tex] / [tex]\omega[/tex][tex]{s}_[/tex]
Where P[tex]{gap}_[/tex] is amount of power crossing air gap from the stator to the rotor.
In case of wound rotor motors, starting torque can be increased by temporarly connecting external resistors in the rotor winding. However no such method is available in case of squiral cage.
I am currently thinking that keeping in view the above equation, it should be possible to increase the starting torqe by decreasing [tex]\omega[/tex][tex]{s}_[/tex]. So, it decrease it, no of poles should be increased. Although I haven't currently thought of specific winding and switching mechanisim, do you think it might be possible to achieve higher starting by say temporarly switching a 2-pole machine to 4-pole machine during starting?
Edit: sorry for the misaligned 'latex'. I tried but couldn't make it work. Why do you call it latex? Because you use latin words? And also isn't the admin reasearching on more intutive and easier method for 'latex'. Sorry, if I questioned things out of my business.