Transformers


Our transformers are manufactured in plants certified ISO 9001: 2008 and conform to IEC standards for each type of transformer.


  • Distribution transformers

Sealed transformers, oil cooled
Single phase up to 150 kVA
Three-phase up to 40 MVA
Primary voltage 11 kV or 33 kV, other voltages on request
On-load tap changer available on request
Designed to limit the rise in oil temperature between 40 and 50°C
Conforms to IEC 76 and IEC 726

Dry-type transformers
From 50 kVA to 5000 kVA
Primary voltage 11 kV or 33 kV, other voltages on request
Can be used inside buildings
On-load tap changer available on request
Conforms to IEC 60726

  • Power transformers

Power up to 700 MVA
Primary voltage up to 500 kV
On-load tap changer available on request
Conforms to IEC 60076
Partnerships with leading manufacturers with first-class references


 

Voltage regulators

Electromechanical regulators controlled by continuous carbon wheels help maintain a stable power supply to motors, lamps and electronic equipment sensitive to voltage variations within networks. They deliver a perfect sinusoid and do not affect the performance and lifespan of the equipment being supplied.

Natural oil cooling
Power up to 5 MVA
Instantaneous response time
Installation inside or outside
Temperature rise of oil only 30o C above ambient temperature
Accuracy: ± 1%
Unlike electronic regulators there is no distortion of the sine wave output, so the longevity of the equipment is ensured
Continuous usage cycle
5 years full warranty
The energy savings and increased engine durability or that of light sources can repay the investment in usually less than a year

Examples of performance in terms of voltage ranges required:

Input voltage 360-460 V 360-460 V 320-480 V 300-480 V 280-500 V
Yield 99.5% 99.3% 99% 98.8% 98.7%
Output voltage 400 V ± 1% 3Phase, 50 Hz* 400 V ± 1% 3Phase, 50 Hz* 400 V ± 1% 3Phase, 50 Hz* 400 V ± 1% 3Phase, 50 Hz* 400 V ± 1% 3Phase, 50 Hz*