AC Motor

J

JBurmeister

New Member

• Sep 17, 2009

• #1

Might anyone know where I can find an AC Motor that has 175 to 200kw and runs at about 13000 rpm? I need to find this for my current project.

 

crutschow

Well-Known Member

Most Helpful Member

• Sep 17, 2009

• #2

What is the frequency of your power source? The fastest an AC motor can run from 60Hz is 3600 rpm. For 13,000 rpm you need a minimum power input frequency of 216.7Hz (actually somewhat greater than that for a two-pole, induction motor to allow for slip). Thus you need a 200kW power inverter to generate the 217Hz power for the motor.

For such a device you need to contact a large motor manufacturer such as Baldor.

 

Boncuk

New Member

• Sep 17, 2009

• #3

Power tool motors rotate at that speed, but far away from 175KW.

3-phase motors are synchronous motors and their rpm depends on the number of poles.

I'm afraid you'll have to use a very strong motor (size order of an electric train motor) and and a step up gear.

Boncuk

 

Last edited: Sep 17, 2009

J

JBurmeister

New Member

• Sep 17, 2009

• #4

Here goes a sample of one I found, just not available to the public. I know that someone out there has to be able to sell something like this. Motor only weights in at 70lbs and fits in a car.

375 volt AC induction air-cooled electric motor with variable frequency drive. Output 248 peak horsepower (185kW) and 276 ft/lbs (375 nm) of torque. Redline 14,000 rpm.

 

Boncuk

New Member

• Sep 17, 2009

• #5

Nice to know.

Keep the knowledge for yourself. I don't need such a motor.

 

S

smanches

New Member

• Sep 18, 2009

• #6

That sounds like the motor that Tesla Motors was using in their cars.

 

J

JBurmeister

New Member

• Sep 18, 2009

• #7

It is. I need something along those lines for a project that I am currently starting.....

 

S

smanches

New Member

• Sep 18, 2009

• #8

Try contacting them. They may have some surplus as the economy has hit them hard.

 

J

JBurmeister

New Member

• Sep 18, 2009

• #9

I tried a little while back, and they will not get rid of them at all

 

blueroomelectronics

Well-Known Member

• Sep 18, 2009

• #10

These motors probably won't come cheap. You'll need deep pockets if you're trying to build an electric car.