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cast resin transformer in outdoor enclosure (UK)

cast resin transformer in outdoor enclosure (UK)

cast resin transformer in outdoor enclosure (UK)

(OP)
I need to spec and buy a transformer to supply a new plant that we are putting in a remote corner of an existing site. All existing transformers on site are dry types, and site engineers prefer to keep this new one similar. I have looked at GRP enclosures (plus suitable IP rated enclosure around tx)as used by the UK utilities for unit substations, but these seem to use oil transformers inside (but curiously I can't see any oil bund on their foundation drawings). I guess utilities use oil transformers due to cost? None of the suppliers I've approached so far have been able to offer tx and enclosure. So, can a cast resin tx go in this type of enclosure? I've put them many times into rooms with louvred external walls, and this doesn't seem much different. Tx is 1600kVA, 11/0.433V. TIA, Brian

RE: cast resin transformer in outdoor enclosure (UK)

The cast resin transformers can be placed indoors or outdoors.  They will cost significantly more than an oil-filled unit.   

David Castor
www.cvoes.com

RE: cast resin transformer in outdoor enclosure (UK)

baj-

Where are you located?

Check out http://www.ritz-international.com for cast-coil transformers. They can be provided in outdoor enclosures.

 

RE: cast resin transformer in outdoor enclosure (UK)

Have you spoken to Schneider at Leeds, Areva at Stafford, and maybe ABB at Sunderland?
  

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If we learn from our mistakes I'm getting a great education!
 

RE: cast resin transformer in outdoor enclosure (UK)

(OP)
Thanks for replies. Although cost is always a factor, I need to try and fit in with current equipment on site. I have tried Schneider and ABB, both of whom offered only a standard indoor type enclosure. Looks like I will have to get a GRP enclosure myself. Any comments on using cast resin tx in these gratefully received. Thanks again, Brian

RE: cast resin transformer in outdoor enclosure (UK)

baj-

I work for Ritz in the US and I'm 99% sure we can provide cast-coil xfmr in outdoor enclosures.  

RE: cast resin transformer in outdoor enclosure (UK)

Putting cast-coil xfmr outside should not be a problem at all.  Maybe you need to talk to someone else at ABB.  

 

David Castor
www.cvoes.com

RE: cast resin transformer in outdoor enclosure (UK)

I'm surprised about Schneider's response.

More candidates:

Baldwin & Francis, Sheffield
Igranic Control Systems, Bedford
  

----------------------------------
  
If we learn from our mistakes I'm getting a great education!
 

RE: cast resin transformer in outdoor enclosure (UK)

A rare piece of advice: phone schneider at Leeds and ask them to get a salesman to contact you.  They make packaged substations for indoor / outdoor locations.

There are others who could offer this, as Scotty said.  Also try Brush at Loughborough

As an aside, we are moving over to Midel (KNAN), midel is a flame resistant, biodegradable liquid.

We have nothing against cast resin units, only that you have no pre warning of failure.

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