|
|
03-12-2014, 19:29
|
#1
|
Registered User
Join Date: Aug 2007
Location: West Indies
Boat: Burger 74' motor yacht, 65 foot 12 metre, Flicka and sailing dinghy
Posts: 643
|
SAFELY wiring a 220v portable genset to shorepower inlet
I have a big 220v portable generator. Not sure of the brand but it is blue and looks like an overgrown Honda. It has a pair of outlets on it that look like the two round-prong European outlets. So, if i wanted to run a 220v appliance I would be all set. But what I want to do is make up a cord that will have, on the other end, a 50 amp, 4 wire shore power connector so i can plug into my boat's shorepower and thus run the battery charger, etc.
2 hot wires coming from the genset.I know where they go..... the ground and neutral from the shorepower adapter... what do I connect them to? just ground them together?
__________________
To a hammer, everything looks like a nail.
|
|
|
03-12-2014, 19:44
|
#2
|
Marine Service Provider
Join Date: Oct 2011
Posts: 1,109
|
Re: SAFELY wiring a 220v portable genset to shorepower inlet
Do You Like Sparks?
If not, hire a qualified electrician.
Based on your post, you don't know ? where, why, and how...to connect 2 wires.
So, I ask why would you want to proceed?
Are you a brain surgeon, would you attempt brain surgery?
Just because it's a boat, doesn't mean it's not dangerous.
Lloyd
Quote:
Originally Posted by dohenyboy
I have a big 220v portable generator. Not sure of the brand but it is blue and looks like an overgrown Honda. It has a pair of outlets on it that look like the two round-prong European outlets. So, if i wanted to run a 220v appliance I would be all set. But what I want to do is make up a cord that will have, on the other end, a 50 amp, 4 wire shore power connector so i can plug into my boat's shorepower and thus run the battery charger, etc.
2 hot wires coming from the genset.I know where they go..... the ground and neutral from the shorepower adapter... what do I connect them to? just ground them together?
|
|
|
|
04-12-2014, 05:00
|
#3
|
Registered User
Join Date: Aug 2007
Location: West Indies
Boat: Burger 74' motor yacht, 65 foot 12 metre, Flicka and sailing dinghy
Posts: 643
|
Re: SAFELY wiring a 220v portable genset to shorepower inlet
You mean do I know that most portable gensets have floating grounds, marina shorepowers have a bonded ground, and that electrical code requires that there be one, and only one, bonded ground in any electrical distribution circuit? So the neutral and ground need to be bonded at the genset. Question is the safest and most efficient way of doing it.
Its not brain surgery. But thank you for your illumination.
Sent from an undisclosed location on the high seas or from the lounge chair by the pool, you decide.
__________________
To a hammer, everything looks like a nail.
|
|
|
04-12-2014, 05:26
|
#4
|
Moderator Emeritus
Join Date: Oct 2013
Location: Jacksonville/ out cruising
Boat: Island Packet 38
Posts: 31,351
|
Re: SAFELY wiring a 220v portable genset to shorepower inlet
When you say 220V, you mean as in the American version, that being 2 110V hot, and not the European actual 220 V ?
I ask as it sounds like you may have an actual 220V, 50 hz generator based on your description of the plugs and your comment on being able to run a 220 V appliance. If that is true, do not connect it to US made boat without having a 220 V to 110 V transformer. I have a German Army 220 V Diesel genset that I used to use to run my 5th wheel, I got a transformer for it off of Ebay, it's Chinese but has worked well.
If that is not the case, I apologize for wasting your time
|
|
|
04-12-2014, 07:12
|
#5
|
Registered User
Join Date: Aug 2007
Location: West Indies
Boat: Burger 74' motor yacht, 65 foot 12 metre, Flicka and sailing dinghy
Posts: 643
|
Re: SAFELY wiring a 220v portable genset to shorepower inlet
No problem I am happy to get any productive input and I should have given more details.
This is a European boat , wired only for 220v. However, the only 220v equipment on board is a very nice, new battery charger. Nice meaning cost me $1000. It is set up now to run off of a European portable generator. The portable generator has 220 v outlets, just as you would see in a European house.
I know how to do this with a 110v genset. You take an Edison plug (the kind used in the USA for house current) and jump the neutral and ground. That gets plugged into one of the 110v outlets on your genset and you are safe and grounded.
A 50 amp shorepower cord has two 110v legs, a neutral and a ground.
The European house plug has one 220v lead, a neutral and on the newer plugs a grounding.
However, the European 220v is not polarized like modern Edison plugs.
If there is no practical, inexpensive way to do this, I will just buy a 110v battery charger. Or possible the battery charger can be configured to accept 110v.
__________________
To a hammer, everything looks like a nail.
|
|
|
04-12-2014, 11:43
|
#6
|
Registered User
Join Date: Nov 2009
Location: Tromsø, Norway
Boat: Meta Arctic Voyager 47
Posts: 374
|
Re: SAFELY wiring a 220v portable genset to shorepower inlet
Just to make things simple and easy to maintain I have 220v 50Hz inverter/charger with a 220v 50Hz genset. I have a separate 110v 60Hz marine battery charger for use when in the USA in a marina (not often). The batteries don't care which ones I use or if I use all at once for faster charging with genset and shore power solely for the 110v battery charger (minding battery temps).
This doesn't really answer your question but we have similar setups I thought I would share how I handle it. I wouldn't mind a Victron unit but not sure I am ready for the penalties in terms of dollars, space and weight.
__________________
Victor Raymond
M/V Arktika
1984 Meta Arctic Voyager 47
|
|
|
04-12-2014, 12:47
|
#7
|
Registered User
Join Date: Feb 2008
Location: North Charleston, SC
Boat: Camano Troll
Posts: 5,176
|
Re: SAFELY wiring a 220v portable genset to shorepower inlet
There is a big risk of misunderstanding when discussing situations like yours on a web forum. People here can't be exactly sure what you are saying and you can't be exactly sure what they are saying and you have no way of knowing if the person giving advice knows what he or she is talking about.
I suggest hiring a qualified marine electrician to configure your electrical setup. This shouldn't take more than an hour and you will know it is safe. And you won't burn anything up.
__________________
Ron
HIGH COTTON
|
|
|
04-12-2014, 13:08
|
#8
|
Registered User
Join Date: Apr 2011
Posts: 2,492
|
Re: SAFELY wiring a 220v portable genset to shorepower inlet
The information you're supplying isn't even consistent. At one point you say the boat has 220V European wiring. Then you say it has a 4-wire shore power connector. Surely this is for US standard 110V x 2 supply? (two 110V hots, neutral and ground).
WARNING : One thing you should be extremely careful about : joining neutral and ground could potentially float everything grounded on the boat up to 110V. That's how people in the water die in marinas. (people on the boat too!). Usually when someone who has no idea about wiring gets creative, connecting stuff together.
My understanding is that you want to connect a 220V generator (actually 2x110V) to the shore power inlet on a European boat. Is this correct? If so, I don't think you can, without a transformer.
What is needed is a PRECISE description of the generator outlet, and the shore power inlet on the boat.
Right now everything you have supplied is so vague, you've no chance of a helpful (and non-lethal) answer.
__________________
Bristol 31.1, SF Bay.
|
|
|
04-12-2014, 13:59
|
#9
|
Registered User
Join Date: Jun 2013
Location: canada
Posts: 4,634
|
Re: SAFELY wiring a 220v portable genset to shorepower inlet
I'm also confused. if you have a euro 230v 50 hz gen. and a euro wired 230v 50hz boat. each should have 3 wires. hot, hot, ground, and they directly connect together.
there is no netrual and no bond in euro wiring.
if you still have a us 4 wire shore plug on the boat. but converted the boat to euro. then change the plug. and then just use the correct euro cable from gen to boat.
|
|
|
04-12-2014, 14:06
|
#10
|
Registered User
Join Date: Apr 2011
Posts: 2,492
|
Re: SAFELY wiring a 220v portable genset to shorepower inlet
Quote:
Originally Posted by smac999
I'm also confused. if you have a euro 230v 50 hz gen. and a euro wired 230v 50hz boat. each should have 3 wires. hot, hot, ground, and they connect together.
there is no netrual and no bond in euro wiring.
if you still have a us 4 wire plug on the boat. but converted the boat to euro. then change the plug. and then just use the correct euro cable from gen to boat.
|
European wiring is hot, neutral, and ground. No idea where you got the no neutral from.
__________________
Bristol 31.1, SF Bay.
|
|
|
04-12-2014, 15:14
|
#11
|
Registered User
Join Date: Jun 2013
Location: canada
Posts: 4,634
|
Re: SAFELY wiring a 220v portable genset to shorepower inlet
hot isn't the best term to be using either. yes your right it has a line, neutral and ground.
But I always thought both line and netrual were floating hot.
do the European onboard gens have a netreual to ground bond at the source? same with incoming dock power?
|
|
|
04-12-2014, 16:01
|
#12
|
Registered User
Join Date: Mar 2013
Location: PCYC Toronto
Boat: CS36T
Posts: 318
|
Re: SAFELY wiring a 220v portable genset to shorepower inlet
Best advice here is what Ron said, period! I'm sure all want to help but there are incorrect terms being used, and context can't be assumed. Get a qualified marine electrician for a likely min hour charge and be done with it.
__________________
Paul
s/v TENACITY - CS36T
|
|
|
04-12-2014, 16:10
|
#13
|
Registered User
Join Date: Apr 2011
Posts: 2,492
|
Re: SAFELY wiring a 220v portable genset to shorepower inlet
Quote:
Originally Posted by smac999
hot isn't the best term to be using either. yes your right it has a line, neutral and ground.
But I always thought both line and netrual were floating hot.
do the European onboard gens have a netreual to ground bond at the source? same with incoming dock power?
|
Neutral, unless there is a fault, is around zero volts. It would be wise to treat it as hot, as it can float quite high if there is a fault somewhere.
__________________
Bristol 31.1, SF Bay.
|
|
|
04-12-2014, 16:14
|
#14
|
Registered User
Join Date: Mar 2013
Location: PCYC Toronto
Boat: CS36T
Posts: 318
|
Re: SAFELY wiring a 220v portable genset to shorepower inlet
The neutral is the dedicated return fault path by design, hence it should only be bonded to ground at the source, read source as one location only.
__________________
Paul
s/v TENACITY - CS36T
|
|
|
04-12-2014, 16:20
|
#15
|
Registered User
Join Date: Aug 2007
Location: West Indies
Boat: Burger 74' motor yacht, 65 foot 12 metre, Flicka and sailing dinghy
Posts: 643
|
Re: SAFELY wiring a 220v portable genset to shorepower inlet
I do appreciate the input but sometimes people read too quickly. There is no shorepower inlet on the boat. I never said there was. I stated that a 50 amp shorepower cord has 4 wires.
I would like to find a "qualified marine electrician." The last and only one I engaged burned up a generator by miswiring. So, I have learned to do it myself, save money and avoid fires.
As I said, I just have to toss the genset or get a transformer.
__________________
To a hammer, everything looks like a nail.
|
|
|
|
|
Thread Tools |
Search this Thread |
|
|
Display Modes |
Rate This Thread |
Linear Mode
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
Advertise Here
Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
Vendor Spotlight |
|
|
|