Environmental safety. It is understood that cast resin transformers provide enhanced safety as they are free from flammable oil insulation. For this reason, it is widely used in urban power grids, commercial buildings, hospitals and universities among other applications.

High capability of short-circuit withstand. Because of the strong protection provided by the vacuum cast epoxy encapsulated coils, Wave Cast transformers are stronger than either liquid-filled or ventilated dry type transformers. Short circuit tests have proven this strength well beyond IEC and ANSI requirements. GEIS designs and manufactures its cast coils to be among the strongest in the industry.

Impervious to adverse atmospheric conditions. Unlike ventilated dry-type transformers and in a manner similar to liquid-filled transformers, cast coil transformers are optimal for use in harsh environments. The epoxy casting is extremely inert and renders the windings impervious to moisture, dirt and corrosive elements.

Suitability for simple indoor installation and convenient maintenance. Unlike the case with liquid-filled transformers, indoor installations do not require an automatic fire extinguishing system or fire vault, oil checking or replacing, or a liquid confinement area. This benefits long term maintenance.

Extended ratings.GEIS cast coil transformers can be provided with the highest self-cooled and fan-cooled extended ratings of any transformers in their size class.
High efficiency. GEIS Wave Cast transformers boast high efficiency stemming from the technical specification. With low no-load loss and load loss, there are energy savings as well as total ownership cost (TOC) savings.

Standard: IEC60076-11:2018 and IEEE standard C57.12.91-2001.
Rated Power: 50kVA ~12500kVA
Rated Voltage: 200V~800V, 3.3kV~38kV
Rated Frequency: 50Hz or 60Hz
Rated Insulation Class: F (155°C/90~100K) or H (180°C/115~125K)