Thread: Shore Power Isolation Transformer
View Single Post
  #3   Report Post  
posted to rec.boats
Mr. Luddite Mr. Luddite is offline
external usenet poster
  
First recorded activity by BoatBanter: Aug 2013
Posts: 6,972
Default Shore Power Isolation Transformer
On 10/15/2015 10:47 AM, wrote:
I've been looking for a suitable isolation transformer to solve the
pesky shore power issues with marinas in Caribbean ports. Typically
they offer 240 volt power with no neutral center tap, 50 Hz of course.
We also run into docks with overly sensitive ground fault interrupters
(GFIs). An isolation transformer can potentially solve both of those
problems. I just scored one like this on EBAY for $125:

http://www.zoro.com/acme-electric-export-transformer-5kva-120240v-wall-tf279263s/i/G2913784/?gclid=CNSH0ZvYxMgCFUqRHwodo9oBhg

It's good for 5 KVA which should be enough for one or two zones of air
conditioning plus the battery chargers and water heater. I'll build a
water tight box out of starboard and put US style 50 amp in/out
connectors on it. With some suitable pig tail adapters it should be
good for just about anywhere. A 10 KVA transformer would be better
but weight, size and cost issues are prohibitive.


I've had problems here in the states with GFI protected circuits when
they power components that use switching power supply designs like
many inverters/battery chargers. GFI's just don't like them and
trip needlessly and often.


Reply With QuoteReply With Quote