RE: [PSUBS-MAILIST] Battery Switches

Hi Doug,

Halfmachine is the home base of Peter Madsen his subs. We were allowed to grab some DC things from not used machinery .

Emile

Van: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] Namens djackson99@aol.com
Verzonden: vrijdag 7 november 2008 17:48
Aan: personal_submersibles@psubs.org
Onderwerp: 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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