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Help on a "final project" related with developing a soft starter for a triphasic induction motor (squirrel cage)


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#1 jimmyrpo

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Posted 18 February 2006 - 01:46 AM

Hi.
Im an electronic engineering student from Colombia and Im taking a course related with Motors and starters. The final project that was assigned to me was to design and construct a soft starter for a squirrel cage induction motor (with a triphasic source). The main problem I have right now is that I dont have any knowledge about starters and this stuff but I have to present an "schematic model" or a "block diagram" of the power and control systems involved in the construction of the soft starter. The control system must be developed with a Microcontroller, i.e. Motorola HC08 family, and the power system must be developed with solid state devices.
Can anyone give me an advice or maybe help me with some information, pdfs, websites, bibliography,etc. related with this specific topic? Im really lost here so any help will be really appreciated ;p;
Thanks.

#2 marke

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Posted 18 February 2006 - 06:16 AM

Hi jimmyrpo

Welcome to the forum.
Have you looked at our page on soft starters at http://www.LMPhotonics.com/sstart.htm This gives the basics andchoices for the power control. If you have specific questions, feel free to ask here.

Best regards,

#3 jimmyrpo

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Posted 19 February 2006 - 08:39 PM

Hi
Thanks for your answer.
Do you know where I can find the advantages and disadvantages about the soft starters. ;)

#4 marke

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Posted 19 February 2006 - 09:27 PM

hello jimmyrpo

I think that any of the soft starters manufacturers web sites will give you their take on the advantages of soft starters. You could look at http://www.lmphotoni...php?sbcat_id=28 to get the addresses of a few suppliers. As to the disavantages, depending on the product, the major diadvantages can be heat, price and complexity, not necessarily in that order. With some units, reliability can also be an issue.

Best regards,




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