Jamie wrote:
>> Jan Panteltje wrote:
>>
>>> On a sunny day (Tue, 02 Sep 2008 21:49:39 -0400) it happened Jamie
>>> wrote in
>>> :
>>>
>>>
>>>> Jan Panteltje wrote:
>>>>
>>>>
>>>>> On a sunny day (Mon, 01 Sep 2008 17:54:08 -0700) it happened Joerg
>>>>> wrote in
>>>>> :
>>>>>
>>>>>
>>>>>
>>>>>> Sunchronous motors have no slip. They are either in sync or stalled.
>>>>>
>>>>>
>>>>> No they can slip.
>>>>
>>>> Then they are not synchronous.
>>>>
>>>> Maybe Asynchronous is what you're thinking of?
>>>
>>>
>>> No, read the links.
>>> Mains operated synchronous usually have an extra winding so they can
>>> start
>>> in the first place, and only become synchronous once at speed.
>>> If you break those, they will simply drop in speed, not stop.
>>> 3 phase variable frequency driven will skip phases too if over loaded.
>> No, that isn't true.. there is still slip in that type of motor.
>> Now, if you were referring to an energized rotor type of motor that
>> employs slip rigs I might then agree more with you but even then you
>> have slip conditions because that was one way, speed control was done
>> many moons ago.
>>
>> I won't get no deeper into this because it's obvious many here are
>> colleged educated with no real world facts to get the clouded education
>> that has confused many out of their heads.
>>
>
>Colleges and universities actually do teach about motors. At least at my
>university, until it came out of our ears. And this part of the
>education was down to earth stuff, taught by guys who had designed
>megawatt motors and generators.
They can. They have mostly quit now. I had only two courses. Did some real work later on.