Cast resin distribution transformer
max. 25 MVA, 36 kV SGB

Cast Resin Transformers have air and no fluid as a cooling medium. The high voltage coils are completely surrounded by cast resin with all manufacturers and are consequently protected. With SGB this process occurs even under vacuum so that even the smallest voids are eliminated in the resin, as sooner or later, this lead to malfunction. As the distances must be bigger with air than with oil cooling, cast resin transformers are generally bigger and, because of the large amount of material, they are also more expensive than oil transformers.

Execution acc. to DIN 42 523 - Version Dec. 93 HD 464.S2
For indoor installation E1; C2; FO
Tappings ±5 %, connection group up to SN 100 kVA Yzn5; SN > 100 kVA Dyn5
Service voltage 12 kV