EdM CAST RESIN TRANSFORMERS
EdM CAST RESIN TRANSFORMERS - Zucchini
EdM CAST RESIN TRANSFORMERS - Zucchini
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The <strong>EdM</strong> technology<br />
Low voltage winding<br />
The Low Voltage winding, made with special<br />
automatic winding machines, consists of one<br />
aluminium strip with an intermediate class F or<br />
class H insulating sheet.<br />
This solution gives the winding a certain<br />
compactness capable of forming a one-piece<br />
cylinder that can withstand possible axial<br />
and radial stresses resulting from short circuit<br />
phenomena within the system and at the<br />
downstream side of the transformer.<br />
All the welds of the conductor strip with the<br />
output bars are made by butt welding in inert<br />
atmosphere and under electronic control, so as to<br />
avoid possible damage.<br />
This winding is then vacuum-impregnated<br />
with epoxy resin so as to give it the required<br />
compactness and uniformity and to avoid the<br />
absorption of humidity throughout the life of<br />
the machine, whatever environment it needs to<br />
operate in.<br />
This treatment also allows <strong>EdM</strong> cast resin<br />
transformers to comply with the F1 classification<br />
according to the Standards and IEC 60076-11.<br />
LV winding system<br />
<strong>EdM</strong><br />
<strong>CAST</strong> <strong>RESIN</strong> <strong>TRANSFORMERS</strong><br />
109<br />
HIGH POWER GENERAL CATALOGUE