[PSUBS-MAILIST] Motor Controllers.

Mon Feb 16 14:31:09 EST 2015

Hi James,

I would really like to follow up on this.  What is your  email.

Thks,  Hugh

From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of James Frankland via Personal_Submersibles
Sent: Tuesday, 17 February 2015 12:06 a.m.
To: Personal Submersibles General Discussion
Subject: Re: [PSUBS-MAILIST] Motor Controllers.

Hi all.

I have a contact for a guy who makes custom motor controllers.  He mainly makes them for electric bikes and RC stuff, but he can do pretty much anything you want.  Custom made to your spec and they are cheap. 

I have 3 of his controllers custom made to my spec for my electric bikes.  50vdc 150amp nominal discharge rate with 300 amp peak.  They have been really good.  Contact me off list if anyone is interested.  Of course they are not waterproof.

Regards

James

On 13 February 2015 at 22:38, Hugh Fulton via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

Thanks Keith,  Have sent off an enquiry to Curtis.

Regards,  Hugh

From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of keith tollett via Personal_Submersibles
Sent: Saturday, 14 February 2015 7:21 a.m.
To: Personal Submersibles General Discussion
Subject: Re: [PSUBS-MAILIST] Motor Controllers.

Have you given thought to using electric car controllers? Curtis makes them in voltages ranging from 24-170 volts and are made for large amperage draws.

Keith

On Friday, February 13, 2015 12:36 AM, Alan James via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

On the electronic speed controller subject Hugh; I have been reading about

the length of wires from the battery to the esc causing problems.

too long battery wires will kill ESC over time: precautions, solutions  <http://www.rcgroups.com/forums/showthread.php?t=952523> & workarounds - RC Groups

The long run of wires in a submarine would be particularly bad.

I would be interested in any solution you may come across.

Most of the RC escs only go up to 59V. 

Castle creations sells motors up to 10,000 watts so should have escs that would

cover your 72 volt requirement. Just can't see them advertised. You would need to enquire.

I think they will taylor make components for you.

http://www.castlecreations.com/index.html

They have a reputation in the RC World of producing top of the line stuff.

Alan

  _____  

From: Hugh Fulton via Personal_Submersibles <personal_submersibles at psubs.org>
To: 'Personal Submersibles General Discussion' <personal_submersibles at psubs.org> 
Sent: Friday, February 13, 2015 7:22 PM
Subject: [PSUBS-MAILIST] Motor Controllers.

Hi All,

I am having problems with Kelly controllers but need small footprint 2 kw 72 volt BLDC controllers.

Any recommendations for reliable units?

Hugh

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