Furnace Transformers

LH Marthinusen supplies furnace transformers ranging from 5MVA to 90MVA, designed to support demanding industrial applications and high load operating conditions. These transformers are engineered to deliver reliable performance, efficient operation and long service life under varying electrical and thermal conditions.

Design and Configuration

Our capabilities include engineering design reviews and transformer redesign to improve performance and align equipment with operational requirements.

Available configurations include:

  • Single phase and three phase designs
  • Shell and core type winding constructions
  • Linear and buck boost regulating options for controlled voltage adjustment

These configurations are selected based on specific application and operating requirements.

Cooling and Electrical Features

Solutions are available to support thermal stability and reliable operation under load conditions, including:

  • Forced cooling applications
  • Bus bar and tube connector options for installation flexibility
  • Vacuum on load tap changers
  • Oil type on load tap changers

These features enable accurate voltage regulation and stable operation without interruption.

Insulation and Protection Systems

Thermally upgraded insulation systems are applied to enhance durability and performance, including:

  • Kraft paper insulation
  • Nomex insulation systems

Auxiliary protection and cooling control systems can be configured to meet specific requirements, including:

  • Fibre optic thermal measurement
  • DGA analysers for condition monitoring

Through controlled design and engineering processes, LH Marthinusen delivers furnace transformer solutions that support reliable performance and long-term operation in demanding industrial environments.