KermitTheCar

A car looks at 40 and a change of life.

Sunday, April 5, 2009

Inverter overhaul

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Today I did most of the overhaul of my motor drive. I got a surplus enclosure and am repackaging all of the guts of the drive to be more co...
Saturday, March 14, 2009

Precharge

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After learning that we do in fact need capacitors , I bought a nice big 230 uF capacitor made especially for this purpose: The problem of l...
Thursday, January 22, 2009

Snubbed!

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Well, it turns out that my assumption that the car failed from overheating was wrong. I dug into the inverter, and discovered that two of t...
Saturday, November 1, 2008

Still learning

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I have learned quite a bit about motors since setting out to rewind mine. First, I was wrong about my old motor being a 2 pole machine. It...
1 comment:
Monday, September 22, 2008

Winding update

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It turns out that I made an error in assuming that there must be an even number of slots per pole. There is a method of winding called lap ...
2 comments:
Sunday, September 21, 2008

Nameplate mystery

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I decided to tackle removing the motor and beginning the process of rewinding by having a look at the old windings. It turned out that the ...
Friday, September 19, 2008

Heat death

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Since the last post, I drove the car back and forth to work (2.5 mi each way) a few times, and enjoyed getting the control settings to be a...
6 comments:
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