"Matt Whiting" wrote in message
...
Martin wrote:
"RST Engineering" wrote in message
...

The problem is with the 500 amps. Is this peak start current from zero
rotor speed, or an average during the start cycle.

Don't say you don't know. Measure it.

How much does it draw when you "soft start" it with a 12 volt source.

What

happens if you ramp it up from 6 volts to 12 volts to 28 volts? What is

the

PEAK current being drawn in the ramp-up mode?

Jim



The 500 amps is what's stamped on the label- I suspect that's the max
rating
of the starter.

I'll set it up on the bench, measure the amperage at the various stages,
and
bring back some more data.

You'll need to measure it under load...

Matt


I've got some parts on order that I'll need prior to 'running it under
load', so it will be a few weeks. I'll do the series of tests and return
here with more data.

Thanks!
Martin