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Ev Archive for July 2001
1471 messages, last added Wed Aug 08 18:52:55 2001

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Re: The AC drive L I V E S ! ! !



At 06:57 PM 7/30/01, you wrote:
>How big will the blue box be on the 500 HP version?
>The 5 HP model does not look like it will fit on the megacycle as it is.
>It was kind of hard to tell from the pictures if it would fit.

         The blue box is an old VFD chassis. We are using it for its power 
supply and monster heat sink. The present power section of the AC drive 
occupies much less than 1/4 of the box. The blue box is about 18" x 12" x 10".

         A liquid-cooled 500 HP AC drive would be two boxes. One would hold 
the logic (like in the picture) and the other would hold the power stage. 
The logic box would be about the size of a cigar box and the power stage 
box would be about the size of a loaf of bread.

         There is no doubt that a AC drive controller will take up more 
space than a DC controller of the same HP. The system as a whole, however, 
should weigh less, especially the spinning mass.

    _ /|        Bill "Wisenheimer" Dube'
   \'o.O'     <billdube@Mega-Cycle.com>
=(___)=     (303) 329-9158
        U
Check out the bike -> http://www.Mega-Cycle.com