transformers

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charles

I may be in the market for a transformer to solve my corrosion problems. Any one know where Hunter is putting the transfomers on the new boats, particulary on a 420?
 
Jul 20, 2005
2,422
Whitby 55 Kemah, Tx
transformer

will help to protect your boat from small voltage entering your boat via the green wire. slicing in a fish (large zinc on a wire) and throwing it overboard so that it touches bottom will protect your boat from any voltage entering your boat as well as voltage generated by your boat and cost a lot less then a transformer. Note: it has to touch bottom. Current will take the least resistant path to a ground. If the zinc is touch bottom, then it will go that route. If it isn't, then who knows where it will go. BTW: This is electrolysis, not corrosion.
 
Sep 24, 1999
1,511
Hunter H46LE Sausalito
low, aft

An isolation tranformer weighs a good seventy pounds, so you want the weight low, but not in the bilges. And you should mount the transformer close to where the shorepower comes into the boat, which means aft. In my 46, the transformer is inside the starboard aft berth, since the shorepower comes in on starboard. A zinc fish won't do near the job an isolation transformer will do. Nor will a galvanic isolator. (For that matter, nor will a galvanic isolator and a zinc fish used in combination.)
 
C

charles

one or two circuits

John- does the 70 lbs transformer handle one or both AC input circuits? I only need it for one since that is all I have connected normally. Franklin- Why would you think current would prefer a muddy bottom for a return path to ground as opposed to a nice clean copper green wire?
 
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