Re: [CAD_CAM_EDM_DRO] crank as hell

Thank you very much Rich.
The actual capacitor is 40 micro farat.
The motor runs maximum 6 times a day for less then a minute.
The important thing is starting torque.
I will try with a bigger cap first
But sure that a three phase has less start up torque?
Sven Peter

Rich D. wrote:

> Sven,
> What you want is an industrial grade **capacitor start** single phase motor.
> These kick a** on start up. The sales vernacular is for **hard starting**
> applications. You can increase the cap value a might if you don't over do
> the starts too often.
> Rich D.
>
> "Sven Peter, TAD S.A." wrote:
>
>> Hello folks,
>> a off topic question.
>> For a actually working centrifuge (High frequency induction for metal
>> casting)
>> I shall put a new motor on that starts up much faster.
>> The 7 kg cross beam of 73 cm length needs with the original 250 watt
>> (1/3 hp)
>> normal single phase motor two turns to come on speed.
>> Result: The castings come out defective.
>> First I thought about to put a 1 or 2 hp three fase motor on it.
>> Are there other motor types that still have a better cranking at the
>> start up???
>>
>> Sorry, but 95 percent of my daily bread experience is based on three
>> fase motors.
>> The rest is a closed book for me.
>> Thank you for any response.
>> Sven Peter
>>
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>
> Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the discussion of shop built systems, for CAD, CAM, EDM, and DRO.
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