230V supply schematic diagram of Blue Angel (Canados 70s)

BartW

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www.amptec.be
During the years we have build a rather sophisticated 230V volt supply in our boat,
ao we can run our zero speed stabs at anker on battery’s,
We also have some other unique features, all developed after having had bad experience with electric supply.
I have drawn these schematic diagrams to explain the working modes to assistants or future users of the boat.
I share this here on the forum for those who might be interested.

The core of the installation are 2 x Victron Quatro 5Kw,
5Kw invertor, battery charger, and 100A feed through from Shore or genny supply

i-t8BF2vw-L.jpg


Each with a DMC remote panel for basic settings (max amps taken from shore connection)

i-HPZpW4r-Th.png


and a BMV600 battery monitor, for Battery status display, with auto start relay for the generator

i-LTqX6Qp-L.jpg


We don’t have a electric cooker onboard, (we use gas)
but we have the following "heavy" 230V appliances
Oven 2Kw
Water cooker 1Kw
dishwasher2Kw,
boiler 1Kw,
Hair dryers in each cabin (5x)
watermaker 3Kw
2 scuba compressors 2 x 4Kw,

Airco
takes 10A for the shillers and pumps without compressor
22A with 1 compressor (half power)
32A with 2 compressors (full power)
all approximately

here is a diagram for the different workmodes:

work mode: 1 shore connection
This here is the normal /standard mode ashore,
With airco at half power (enough for us 95% of the time)

i-LpcqnVg-L.jpg



Work mode: 2 Shore connections

This mode is special, we use our second shore connection not only for using the airco at max power (32A) on a 3x32A network,
But mainly in occasions where we only have 16A shore connections, (fe 3 seasons in SOF Toulon)

i-FdSgW4M-L.jpg


In this mode, we can run the airco from shore connection 2, (at half power)
When the shillers are on, airco takes 10A, and when one compressor is on, airco takes 22amps,
I can set the Victron so that this takes only 16A from shore, and the other 6 amp from the battery’s.
Battery’s are strong enough to cope with the start power from the compressor motor
When inside temperature is cold enough, airco not demanding cold, compressor stops, airco consumes only 10 amps, (chillers only)
Than there is 6Amps left for recharging the battery’s.

So
In a marina where we only have one 16amp shore connection available for our boat,
We connect shore2 (airco) with this clean 16A socket,
And shore 1 with a splitter in parallel with a neighbour sailboat fe, (they only need a few amps )
And set our Shore 1 Victron at 10 amps max,

So wth 1 x 10Amp and 1 x 16Amp shore connection we can run the full boat including airco !!!
This way, we can do all we need to do onboard, without running the genny.
This mode was invented and used all the time in Toulon , (electric connection and consumption there was FOC ;-) )




Work mode: during navigation and on anker

most 230V systems (stabs, boiler, oven) get power from the alternator / battery’s
at ancher we run purely from battery’s,

i-CRcdc5K-L.jpg


we have 2 battery banks of 24V/620Ah each, (one for engines and one for domestic).
during navigation, the alternators are charging the battery's
the alternators (orriginal) are 140A each


at ancher, when battery’s are becoming flat, we start the genny,
during the night I set the genny at auto start, so that the BMV will start the genny for recharging automatically when battery’s reach 60% state of charge
(this State Of Charge value is user programable)
and brings us to the next work mode:

Work mode: Generator
When we use the watermaker, or scuba compressor
Or airco (output nr2)
We switch the genny ON

i-qj2brjc-L.jpg


the Quatro nr 2 output is switched off when no 230V supply is on one of its inputs
this prevents that the airco can be switched ON, during battery power operation through the invertor.
this could overload the Invertor, (more than 5Kw)

Work mode: backup
We have installed these backup switches and relay’s for in a emergency, to bypass the Victrons,
As a general backup function
some of these relay’s were there from the original installation

i-MTc29wf-L.jpg


There is one more workmode, (no diagram)
Similar as above, but instead of Generator,
having the shore connection direct to all loads, and bypass the invertor,
This mode is normally never used,
Can be used for “service” or “test” purpose.
 
Last edited:
Interesting stuff Bart; thanks for posting
Looks very good and logical.
It looks like you can only run one genset at a time, not both together. Is that correct? (Maybe that is enough)
 
B, how do the "Auto Select" switches on Shore 2 and on the gensets lines work, and which components did you use for them?

the shore 2,
there are two 230V relay's operated by the 2nd shore supply, (one normal open, the other normal closed, )
there is a short delay / timer in the controll signal for normal open relay (to avoid a very short "short cirquit")

the gensets cirquit,
(originally from Canados)
two big relay's with a few auxiliary contacts, to make sure that when the first genset starts / relay activated, (activated from the gesnets 230V output)
the second relay can't be activated
all very straight forward, do you need a drawing ?
 
Thanks B, no need to post a drawing, I see what you mean - and I was just curious anyway! :encouragement:
 
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