Subject: Ideas and help wanted
From: Rotary Engine
Date: 3/24/2010, 5:14 PM
To: AAA Put this in the To box


 My problem is: what do I use for a generator
 that will handle 50 HP or 37 KW.
 Also what do I use for a load.
 I could use 37 one KW electric room heaters.

 Anybody have any ideas?

 Paul Lamar




I once made dummy loads for standby generators for telephone switches so I could could configure everything off-line, then make the cut-over and be quite sure things would work correctly.
I used to bolt a few electric stove heating elements to be piece of insulating board. Put a expanded sheet metal box over it all so nobody would touch it by accident. Could also use it to grill steaks if you wanted to.

Robin


I checked in the handy McMaster catalog for heating elements.
Not a bad idea. They have 240 Volt AC 4 Kw units at $116 each so we would
only need 10 in parallel. We could connect them one at a time
to vary the load. Now if that LE GenSmart  G32L2 was under
a $1000 and 240 Volt AC it might be a workable turbo compound  dyno.
http://www.lt-eng.com

We would have to gear the output shaft
down from 6000 RPM to 2500 RPM for the generator unless I can find
a higher RPM unit. A 50 HP gear set could be non trivial.
On the the other hand we could use the Ford planetary set
in the 2.85:1 mode. I am sure Jeff could  make the box for that.

Anybody know of any high speed 6000 RPM generators around 40Kw?

Paul Lamar
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