Renewable energy transformers

Renewable Energy Transformers Solar Inverter Wind Farm

Alternative renewable energy is growing rapidly worldwide and Alfa Transformer has been serving this market for more than 20 years. We offer special GSU transformers for the solar, wind, geothermal, and biogen power markets. These applications require special design considerations because of the internal and external stresses placed upon the transformers.

standard ratings and features

  • Pad mounted or substation
  • 45 to 30,000 KVA
  • Up to 46 kV
  • 50 or 60 Hz
  • 55°C or 65°C
  • Mineral oil or FR3 fluid filled
  • Copper or aluminum windings
  • Liquid level gauge
  • Temperature gauge
  • Pressure/vacuum gauge
  • De-energized tap changer
  • Pressure relief valve
  • Upper filter press connection
  • Drain valve with sample port
  • Suitable for rolling or skidding

optional features

  • Custom KVA ratings
  • Custom voltages
  • Current transformers
  • Contacts on gauges
  • Winding temperature gauge
  • Digital transformer monitor
  • Pressure relief device
  • Sudden pressure rise relay
  • Forced air cooling
  • Surge arresters
  • Loadbreak switches
  • Stainless steel construction
  • Class 1 Div II/Marine/Corrosive Environment
  • High altitude
  • Seismic conditions and anchoring

solar inverter transformers

  • Generator step-up
  • Up to 46 kV
  • Up to 5,000 KVA
  • 2, 3, or 4 winding designs
  • Solar cycle thermal design
  • Special transition to inverter LV connection
  • Designed to fuse up to 4,000 KVA
  • Inverter step-up
  • Special design for tight impedance
  • HV-LV and LV-LV impedance control for inverter operation
  • Solar duty cycle compliance
  • Third compartment for gauges safety check
  • Designed for skid mounting

collector substation transformers

  • Generator step-up
  • Up to 30,000 KVA
  • Up to 138 kV
  • K factors
  • Disc and layer options available

wind pad transformers

  • Generator step-up
  • Up to 7,500 KVA
  • Up to 34.5 kV
  • Short-circuit robust design
  • Third compartment for gauges safety check