Re: [Amel Yacht Owners] Circuit Breakers

Olivier Beaute

Dear Kent,

you don't need to pull the neg wires out of their ducts, but only disconnect the neg wire where it is attached to the item (motor, relay, pump, nav light, fridge, etc...). One week should be enough....


On Tuesday, February 3, 2015 3:45 AM, "Kent Robertson karkauai@... [amelyachtowners]" wrote:

Thanks Eric.  That makes sense. So everything on the winches breaker on the 24V panel goes to the control panel at the helm and the breakers throughout the boat go to the motors and pumps directly. So I need to go to each winch and pump separately, disconnect the neg wire and see if the voltage between the pos battery pole and the bonding disappears.  I think.  I'm still wondering if the bond/neg connection is somewhere between a motor and the battery, how am I going to find it?  I guess that means tracing every neg wire back to the battery.  Ugh, most of them are in chases where they aren't visible. That'd mean pulling them out, checking them, and running them back through the chase.  That might take me a month or two.😩

On Feb 2, 2015, at 9:19 PM, kimberlite@... [amelyachtowners] <amelyachtowners@...> wrote:

The breaker on te 24 volt panel does not control the winches and a number of other things. That breaker only controls the control relays. The actual hi load breakers are as note in my previous note,

----- Original Message -----
From: "Kent Robertson karkauai@... [amelyachtowners]"
Date: Monday, February 2, 2015 6:21 pm
Subject: Re: [Amel Yacht Owners] Re: Prop Shaft Electrolysis
To: "amelyachtowners@..."

> Aha! Thanks Bill. What does that "Permanent" stepdown 
> transformer feed?
> The + wire to the permanent stepdown transformer is the only one
> I see that is attached to the main service battery switch on the
> positive battery side of the switch. I was surprised that the
> bilge pump wasn't connected there too. I'd never checked
> before, but the bilge pump doesn't work when the battery switch
> is off. So I guess the permanent transformer is the only thing
> that is powered when the battery switch is off?
> Is there a place that tells what these other equipments are that
> don't go through the 24v panel? I know where most of the
> breakers are that go to the winches, heads, anchor wash,
> windlass, thruster, furlers, etc. They are all dependent on a
> breaker on the 24V panel. I don't know where the breaker is for
> the aft lazarette receptacle for the dinghy inflator???
> I've found 24 V between the bonding system and the Positive
> battery pole. I think that means there is a connection
> somewhere between a negative wire and the bonding system. It
> carries 0.8amps with all 24v panel breakers off. My next
> project is to disconnect all the negative wires at their
> equipment. If the connection between the battery negative and
> bonding is not at the pump or motor, but somewhere between
> battery and the equipment, I don't think I'll find it by
> disconnecting neg from equipment. Then what???
> Thanks to all!
> Kent
> SM243
> Kristy
> On Feb 2, 2015, at 4:45 PM, 'Bill & Judy Rouse'
> yahoogroups@... [amelyachtowners]
> wrote:
> Kent,
> There are many loads that do not go through the 24 volt breaker
> panel and the "Permanent" 24 to 12 volt step-down transformers
> are one example. The breaker for these is inside the wet
> locker...additionally, and I am fairly sure, that this breaker
> remains HOT with the battery switches turned OFF.
> Bill
> BeBe 387
> > On Mon, Feb 2, 2015 at 1:30 PM, karkauai@...
> [amelyachtowners] wrote:
> >
> > Hi again, all,
> > another question:
> > Are there any permanent loads on the 24V system that don't go
> through the 24V panel.
> >
> > On some schematics I found something called "permanent" on the
> 24V system that doesn't appear to be on the 24V panel and
> doesn't have a breaker on it in the schematic.
> >
> > Thanks,
> > Kent
> > SM243
> > Kristy
> >

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