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Re: [PSUBS-MAILIST] Battery Switches



Thanks Emile, I'll start looking around.  I had not seen the Halfmachine site before; great stuff. What is your role in all of that?
--Doug




-----Original Message-----
From: Emile van Essen <emile@airesearch.nl>
To: personal_submersibles@psubs.org
Sent: Fri, 7 Nov 2008 6:49 am
Subject: RE: [PSUBS-MAILIST] Battery Switches

Doug,
 
We found some 200 Amp hand operated switches on the Halfmachine  Maybe you also can recycle them from a scrapped industrial application as the will be very expensive new.
A Euronaut team member has build a small , water-cooled electronic controller. Has not operated yet.
 
Yes, old style without much losses is having 4 speeds by 2 banks of batteries and 2 engines.
 
Groet, Emile
 

Van: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] Namens djackson99@aol.com
Verzonden: vrijdag 7 november 2008 6:01
Aan: personal_submersibles@psubs.org
Onderwerp: [PSUBS-MAILIST] Battery Switches
 
What switches are available for changing how lots of batteries are combined in order to change the voltage to a motor?  There has got to be something simpler that an bunch of 200 amp latching relays. 

When I toured the WWII subs I remember a bank of large handles.  Were they recombining the batteries to control the motors speed?

I am trying to avoid a big expensive PWM and any power losses associated with it. 

How is Euronaut controlling motor speed?

Thanks
Doug J
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