Products

Oil Immersed Transformer

Oil-Immersed Power and Distribution Transformers

SUT Electrical supplies oil-immersed transformers for electrical power transmission and distribution applications.

Our product range includes distribution transformers, higher-voltage power transformers, and selected energy-efficient transformer designs.

Typical Applications

  • Power substations and utility networks

  • Industrial power distribution systems

  • Electrical infrastructure projects

  • Renewable energy collection and grid connection systems

Oil-immersed transformers provide electrical insulation and thermal management through an insulating liquid system.

Different designs may incorporate sealed tanks, expansion arrangements, cooling equipment, and voltage regulation configurations according to the model and project requirements.

Explore our oil-immersed transformer products for technical specifications and available configurations.

How to Select an Oil-Immersed Transformer

Oil-immersed transformer selection should account for electrical performance, cooling requirements, installation conditions, and maintenance arrangements.

Important Selection Factors

  • Capacity and Voltage: Specify rated kVA/MVA and winding voltage ratings.

  • Cooling Method: Select an appropriate cooling arrangement based on the transformer design and operating conditions.

  • Loss Performance: Review no-load loss, load loss, and efficiency using verified technical data.

  • Impedance and Vector Group: Confirm compatibility with the electrical system.

  • Tap-Changing Requirements: Determine whether the application requires off-circuit or on-load voltage adjustment.

  • Installation Environment: Consider ambient temperature, altitude, available space, and fire safety requirements.

Technical Review and Quotation

Please provide the rated capacity, voltage ratio, frequency, vector group, impedance, cooling requirements, applicable technical standards, and installation conditions.

SUT Electrical can review project requirements and discuss suitable oil-immersed transformer configurations.

Routine inspection and maintenance should follow the instructions applicable to the selected transformer design.

Partners
Transformer Testing Equipment
Transformer Testing Equipment

Comprehensive benchmarking systems designed for automatic measurement of transformer no-load/load losses, winding resistance, insulation, and voltage ratios with high-precision digital data logging.

Epoxy Resin Casting Equipment
Epoxy Resin Casting Equipment

High-vacuum automated resin casting systems engineered to isolate moisture and eliminate micro-voids, ensuring supreme dielectric strength for dry-type electrical coils.

Vacuum Oil Filling Equipment
Vacuum Oil Filling Equipment

Advanced multi-stage vacuum degasification and oil purification units, tailored to remove trace moisture and particulates for optimal transformer insulation processing.

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For more information and how we can meet your needs, please fill out the form below and someone from our team will be in touch.