
Cast resin transformers
Cast resin transformer offers a safer and easier solution for the customer as there is a lower fire potential and a reduction in maintenance requirements. As the high voltage windings are encapsulated, the transformers are totally screened against moisture, dust and industrial waste common in heavily polluted environments.
The result is greater installability, flexibility and a maintenance free lifecycle. Cast Resin Transformers are commonly used for distribution power grids.
Trafo Elettro cast resin transformers are certified in compliance with IEC 60076-11 for: mattis, pulvinar dapibus leo.

ENVIRONMENTAL CLASS (E3)
transformers suitable
for heavy pollution area
with humidity above 95%

CLIMATIC CLASS (C2)
transformers suitable for operation,
transport and storage
with ambient temperatures down to -25°c

FIRE BEHAVIOR CLASS (F1)
transformers suitable for areas
with high risk of fire
being self-extinguishing
CAST RESIN CATALOG
ADVANTAGES

LONG LIFE
The know-how and experience in the casting process allow a low level of partial discharge.

COMPACT DESIGN
Optimized dimensions and terminals arrangement for critical situation of space.

HIGH ENVIRONMENTAL RESISTANCE
Specific treatment for magnetic core and frames to withstand the most extreme environmental conditions.

HEAVY DUTY
Special design structure for seismic zones or for using in applications with high level vibrations.

ECO-FRIENDLY
Research and development of the most performing materials combined with an advanced design for high energy efficiency. Safe to use and easy to dispose.
STANDARD ACCESSORIES

TESTS
ROUTINE TESTS
To be performed according to IEC 60076-11:
- Measurement of winding resistance
- Measurement of voltage ratio
- Checking of phase displacement
- Dielectric routine tests
- Measurement of partial discharges
- Measurement of no-load losses and current
- Measurement of short-circuit impedance and load losses
- Test of accessories
TYPE TESTS
Can be performed:
• Lightning impulse test
• Temperature rise test
• Determination of sound level
SPECIAL TESTS
Can be performed:
• Short-circuit withstand test