Dry-Type Transformers

Grade 2 Energy-Efficient Dry-Type Transformer

Also known as: Grade 2 Dry-Type Transformer; Energy-Efficient Cast Resin Transformer

Boreviax Grade 2 energy-efficient dry-type transformers provide a balanced solution between initial equipment cost and long-term operating efficiency. Available configurations can be designed to meet Grade 2 requirements under GB 20052-2024 for applicable voltage and capacity ratings.

Final voltage, capacity, losses, impedance, accessories, dimensions and applicable standards are confirmed according to the project specification and quotation.
Product overview

Design and operating characteristics

The transformer combines an optimized core, reliable cast-resin winding insulation and an intelligent temperature protection system. It delivers low losses, stable temperature performance, good mechanical strength and reduced maintenance requirements.

The oil-free design makes the transformer suitable for indoor locations where fire safety, environmental protection and reliable operation are required, while maintaining a more economical initial investment than higher-efficiency configurations.

Grade 2 refers to the applicable Chinese energy-efficiency classification under GB 20052-2024. Project requirements for other markets must be reviewed against the relevant local standard.

Key features

  • Balanced equipment cost and operating efficiency
  • Low losses and controlled operating noise
  • Cast-resin insulation with good mechanical strength
  • Low partial discharge and stable thermal performance
  • Automatic temperature monitoring and fan control
  • Alarm and over-temperature trip outputs
  • Oil-free and low-maintenance construction

Typical applications

General commercial buildings, factories, residential developments, hospitals, public infrastructure and standard indoor distribution projects.

Quotation preparation

Information to include with your RFQ

  • Rated capacity and primary/secondary voltage
  • Frequency, phase and vector group
  • Impedance and efficiency or loss requirements
  • Enclosure, IP rating and installation environment
  • Cooling and temperature-control requirements
  • Applicable standard, destination and required delivery date

Technical specifications, single-line diagrams and project documents can be emailed to sales@boreviax.com.

Grade 2 Energy-Efficient Dry-Type Transformer product configuration