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[kolbacict]

If we remove these short circuit 1,
will the motor rotation at all ?

[rakarskiy]

If we remove these short circuit 1,
will the motor rotation at all ?

It sucks to be a radio broadcaster who isn't trained to work with sources of information. That's the way it is! No offense.
Today's opportunities and the availability of elementary information is a godsend for any learning experience.

There is a magnetron cooling fan in the microwave. This fan is driven by a single-phase asynchronous motor, power from 10 to 50 watts, the rotor speed of which is 1200 - 1300 revolutions per minute. The motor stator is made of electrotechnical steel plates, the rotor is simply a steel cylinder with a pressed-in shaft.

The working winding is made of thin enamel wire, and is located on a plastic frame, put on the stator. There is also a starting winding, the role of which is performed by short-circuited single turns of large cross-section, located on the edges of the stator, and forming the starting torque when switching on.

The motor is not characterized by high efficiency, but it copes with its function - to rotate the fan, to drive air through the magnetron radiator.

https://electrik.info/remont/1166-bytovye-elektrodvigateli.html

[bistander]

If we remove these short circuit 1,
will the motor rotation at all ?

Hi kolbacict,
I'd say removal of shorted turns will eliminate starting torque meaning motor will not self start after AC voltage is applied to winding, however if manually spun after energized, it would then continue rotate on its own.
bi

[floodrod]

Hi kolbacict,
I'd say removal of shorted turns will eliminate starting torque meaning motor will not self start after AC voltage is applied to winding, however if manually spun after energized, it would then continue rotate on its own.
bi

I agree..  Removal should also allow the rotor to spin in either direction. 

[kolbacict]

Then in that case I came up with a new rotor this asynchron motor.
Rotor should be divided in two parts. But both parts on one shaft.
Each of parts must rotating in opposite. Both parts are connected between by a gearbox.
I wonder what will come of this ?