Reply
 
Thread Tools Search this Thread Display Modes
 
Old 02-08-2019, 01:18 PM   #21
Valued Technical Contributor
 
DavidM's Avatar
 
City: Litchfield, Ct
Join Date: Aug 2012
Posts: 6,786
Yes that is a primary 240V two phase electrical system with fairly minor loads covered by 120V. You don't say if you have an inverter or not but if you do I will bet it only supplies 120V to the 120V panel, which isn't all bad as the microwave and galley outlets are what most people use an inverter for.


The only downside I can see is the fact that some marinas (fairly few but may be significant) can't supply 240V directly or indirectly with two opposite leg 120V supplies Y'd together.


David
DavidM is offline   Reply With Quote
Old 02-08-2019, 02:59 PM   #22
Guru
 
O C Diver's Avatar
 
City: Fort Myers, FL... Summers in the Great Lakes
Vessel Name: Slow Hand
Vessel Model: Cherubini Independence 45
Join Date: Dec 2010
Posts: 12,834
My apologies, you were quite right.

Never seen a 240 VAC dominant wired boat that small (under 50'). If you want to run it off a gas generator, it will need to be a 240 VAC, not the inverter style you were considering. It will likely be significantly heavier and noiser, but possibly cheaper. Looks like $1,550 would get you 3,500 watts (14 amps 240 VAC) and $2,000 would get you 5,500 watts (23 amps 240 VAC).

Ted
__________________
Blog: mvslowhand.com
I'm tired of fast moves, I've got a slow groove, on my mind.....
I want to spend some time, Not come and go in a heated rush.....
"Slow Hand" by The Pointer Sisters
O C Diver is offline   Reply With Quote
Old 02-08-2019, 03:24 PM   #23
Guru
 
High Wire's Avatar
 
City: Cape May, NJ
Vessel Name: Irish Lady
Vessel Model: Monk 36
Join Date: Dec 2007
Posts: 4,966
Silly question but what is the switch with a red light that says Start for?
__________________
Archie
Irish Lady
1984 Monk 36 Hull #46
Currently in Cape May, NJ
High Wire is offline   Reply With Quote
Old 02-08-2019, 03:53 PM   #24
Guru
 
City: Northport
Join Date: Aug 2015
Posts: 2,046
Quote:
Originally Posted by O C Diver View Post
My apologies, you were quite right.

Never seen a 240 VAC dominant wired boat that small (under 50'). If you want to run it off a gas generator, it will need to be a 240 VAC, not the inverter style you were considering. It will likely be significantly heavier and noiser, but possibly cheaper. Looks like $1,550 would get you 3,500 watts (14 amps 240 VAC) and $2,000 would get you 5,500 watts (23 amps 240 VAC).

Ted
Can you imagine the noise and vibration from one of those in that boats cockpit?
smitty477 is offline   Reply With Quote
Old 02-08-2019, 03:53 PM   #25
Guru
 
City: Northport
Join Date: Aug 2015
Posts: 2,046
Quote:
Originally Posted by High Wire View Post
Silly question but what is the switch with a red light that says Start for?
Genset start switch maybe.
smitty477 is offline   Reply With Quote
Old 02-08-2019, 04:21 PM   #26
Guru
 
O C Diver's Avatar
 
City: Fort Myers, FL... Summers in the Great Lakes
Vessel Name: Slow Hand
Vessel Model: Cherubini Independence 45
Join Date: Dec 2010
Posts: 12,834
I apologize for not having followed all of your other theads on the need for this generator. I think I read that the current onboard generator isn't working. I believe that I also read if you liked your upcoming trip, you were considering selling this boat and buying something else. If that's the case, bite the bullet and fix or replace your current generator. The hit you will take selling a relatively new boat with a dead generator will likely be more than squaring it away now, plus you get to use it on your trip.

Ted
__________________
Blog: mvslowhand.com
I'm tired of fast moves, I've got a slow groove, on my mind.....
I want to spend some time, Not come and go in a heated rush.....
"Slow Hand" by The Pointer Sisters
O C Diver is offline   Reply With Quote
Old 02-08-2019, 04:34 PM   #27
Guru
 
High Wire's Avatar
 
City: Cape May, NJ
Vessel Name: Irish Lady
Vessel Model: Monk 36
Join Date: Dec 2007
Posts: 4,966
Now I get it. Old generator broken. Looking for 240 v temp replacement.
Put me in the fix or replace the old one category.
High Wire is offline   Reply With Quote
Old 02-08-2019, 05:00 PM   #28
Valued Technical Contributor
 
DavidM's Avatar
 
City: Litchfield, Ct
Join Date: Aug 2012
Posts: 6,786
Quote:
Originally Posted by smitty477 View Post
Can you imagine the noise and vibration from one of those in that boats cockpit?

Don't even think about it. I had a 4,000 watt, 240 V, propane fueled generator for home power outages. It was horribly noisy. Unless you can find a small 240V inverter generator, forgetaboutit.



David
DavidM is offline   Reply With Quote
Old 02-09-2019, 11:32 AM   #29
Member
 
City: Longboat Key
Join Date: Jan 2019
Posts: 22
The start button is for the gen set. My original desires were to take the boat all over the Carribean and I would like to feel comfortable with reliability of my systems. I don’t want to have to run my engines to charge the batteries that run the boat. The boat is an express and IMHO was designed to be a lake/ICW cruiser and the concept of system redundancy, except for the engines, was not a primary thought. Now, I am intending to go on this initial 3 week journey and see if I really like the solitude(a real question as it would be much better with a partner, but that the current situation and because of age I am going now, hopefully) and the journey. Should that stand, then when I come back, a better designed boat for my mission will be in my short term future, see other posts.
Thanks for all of your help.
Chris71 is offline   Reply With Quote
Old 02-09-2019, 06:05 PM   #30
Guru
 
High Wire's Avatar
 
City: Cape May, NJ
Vessel Name: Irish Lady
Vessel Model: Monk 36
Join Date: Dec 2007
Posts: 4,966
How exactly are your shore power cords set up? In post #3 you say you have 50 amp but have 2 cords. That does not compute.
Since you have 240 and 120 VAC in your panel, I would guess you have a single 120/240v 50 amp cord. I can not think of a work-around to solve all of the 240V loads, especially since both battery chargers are 240V.
__________________
Archie
Irish Lady
1984 Monk 36 Hull #46
Currently in Cape May, NJ
High Wire is offline   Reply With Quote
Old 02-09-2019, 06:23 PM   #31
Guru
 
City: Northport
Join Date: Aug 2015
Posts: 2,046
[QUOTE=High Wire;739276]How exactly are your shore power cords set up? In post #3 you say you have 50 amp but have 2 cords. That does not compute.
Since you have 240 and 120 VAC in your panel, I would guess you have a single 120/240v 50 amp cord. I can not think of a work-around to solve all of the 240V loads, especially since both battery chargers are 240V.[/QUOTE

His boat comes with a reverse "Y" adaptor (twin 30 to one 50)
Please see section 4-10 of the manual for his boat that he linked in post #17.
smitty477 is offline   Reply With Quote
Old 02-09-2019, 09:27 PM   #32
Member
 
City: Longboat Key
Join Date: Jan 2019
Posts: 22
Phasing

What I was trying to learn is that the companion unit has a 30 amp ( physical receptive size) and if I had 2, could I phase them so that I am using two like in a home and could use my 2 x30 amp line on them to make 240 volts and I know that they would have to be in the proper phase configuration. What I think I gleaned is that I can t do it , it won’t work. I did buy a normal Honda and will have an emergency way with it and a separate 120 battery charger to charge the batteries. The boat has a 240 volt charger to charge the batteries. The 240 system is more efficient as in wiring but such a problem away from the dock with a gen failure. Thanks to all
Chris71 is offline   Reply With Quote
Old 02-09-2019, 10:26 PM   #33
Senior Member
 
Island Cessna's Avatar
 
Join Date: Feb 2011
Posts: 305
Quote:
Originally Posted by Chris71 View Post
My boat is all 240 except for the 120 outlets

You started looking for a Honda portable generator to supply 240 volts. You need a European spec unit https://www.honda.co.uk/content/dam/...ableEnergy.pdf
Island Cessna is offline   Reply With Quote
Old 02-10-2019, 05:31 AM   #34
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 22,553
"Can you imagine the noise and vibration from one of those in that boats cockpit?"

Folks can either place them in the dink astern or hang them from a davit to quiet noise on board.

Either way the rest of the anchorage wont love ya!
FF is offline   Reply With Quote
Old 02-10-2019, 06:03 AM   #35
Valued Technical Contributor
 
DavidM's Avatar
 
City: Litchfield, Ct
Join Date: Aug 2012
Posts: 6,786
Quote:
Originally Posted by Island Cessna View Post
You started looking for a Honda portable generator to supply 240 volts. You need a European spec unit https://www.honda.co.uk/content/dam/...ableEnergy.pdf

Yes, it will produce 230V according to the specs, but since it has a three pin plug it doesn't have a neutral to make 115V, so you can't run your microwave or coffee pot from it.



David
DavidM is offline   Reply With Quote
Old 02-10-2019, 08:36 AM   #36
TF Site Team
 
Larry M's Avatar
 
City: Jacksonville
Join Date: Nov 2008
Posts: 11,682
Quote:
Originally Posted by djmarchand View Post
Yes, it will produce 230V according to the specs, but since it has a three pin plug it doesn't have a neutral to make 115V, so you can't run your microwave or coffee pot from it.
David
Frequency at 50 Hz could also be an issue.
Larry M is offline   Reply With Quote
Old 02-10-2019, 09:45 AM   #37
Guru
 
OldDan1943's Avatar
 
City: Aventura FL
Vessel Name: Kinja
Vessel Model: American Tug 34 #116 2008
Join Date: Oct 2017
Posts: 10,595
NEVER enough breakers!!!
We need to have the ability to isolate 'parts' assigned to "house batteries" Just MO
__________________
Two days out the hospital after a week in the hospital because of a significant heart attack.
OldDan1943 is offline   Reply With Quote
Old 02-10-2019, 05:47 PM   #38
Guru
 
diver dave's Avatar
 
City: Palm Coast, FL
Vessel Name: Coquina
Vessel Model: Lagoon 380
Join Date: Jan 2017
Posts: 2,570
Quote:
Originally Posted by djmarchand View Post
Yes, it will produce 230V according to the specs, but since it has a three pin plug it doesn't have a neutral to make 115V, so you can't run your microwave or coffee pot from it.



David


Hmmm, do we know the iso xfmr does’nt have a secondary CT? It should.
diver dave is offline   Reply With Quote
Old 02-10-2019, 06:06 PM   #39
Guru
 
C lectric's Avatar
 
City: Gibsons, B.C., Canada
Vessel Name: Island Pride
Vessel Model: Palmer 32'
Join Date: Oct 2007
Posts: 4,414
Diver Dave has an excellent point. It could be 240/240 .

It could be also be 240 - 120/240.

Only a real inspection will tell. Take a good hard look at the spec. plate and terminals and draw them or take a GOOD, CLEAR photo that can be blown up so we can see the markings.
C lectric is offline   Reply With Quote
Old 02-10-2019, 06:34 PM   #40
Guru
 
diver dave's Avatar
 
City: Palm Coast, FL
Vessel Name: Coquina
Vessel Model: Lagoon 380
Join Date: Jan 2017
Posts: 2,570
It should also have a 208v tap on primary.
When i say it should; i really mean, i would want it to, and these are very low cost option adders on a transformer.
diver dave is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program





All times are GMT -5. The time now is 06:02 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012