Transformer Oil

High-Quality Transformer Oils for Reliable Insulation and Cooling

Transformer oils are critical for the performance, safety, and longevity of electrical transformers and high-voltage equipment. Serving as both an insulating medium and a coolant, these oils must deliver:

  • High dielectric strength for electrical insulation
  • Thermal stability under continuous load
  • Oxidation resistance for long service life

Poor-quality transformer oil can cause insulation failure, arcing, overheating, and costly equipment damage. At LUBELINE™, we supply premium-grade transformer oils designed to protect equipment, extend service life, and ensure reliable operation in the power generation, transmission, and electrical infrastructure industries.

Common Grades of Transformer Oils

LUBELINE™ offers transformer oils formulated to meet international standards, including IEC 60296 and ASTM D3487 specifications:

  • Uninhibited Mineral Transformer Oils – Cost-effective and widely used in standard transformer applications.
  • Inhibited Mineral Transformer Oils – Enhanced oxidation stability for extended service life and reduced sludge formation.
  • Synthetic Ester Transformer Oils – Biodegradable, fire-resistant, and ideal for environmentally sensitive or high-temperature applications.
  • Silicone Transformer Fluids – Superior fire resistance for specialized environments.

 

Industrial transformer used in manufacturing and energy applications, illustrating LubeLine industrial lubrication solutions

Transformer Oils: Applications and Supply Solutions

LUBELINE™ supplies high-quality transformer oils engineered to insulate, cool, and protect a wide range of electrical equipment — including power and distribution transformers, high-voltage switchgear, on-load tap changers, circuit breakers, and capacitors. These specialised oils provide excellent electrical insulation, heat dissipation, and resistance to moisture and contaminants, ensuring reliable performance and safety under constant electrical stress.

As a trusted distributor, LUBELINE™ offers a consistent supply of IEC- and ASTM-compliant transformer oils, supported by expert guidance to help you select the right formulation for your equipment. With fast, reliable delivery and access to premium mineral and synthetic oils from leading global brands, we help maintain the efficiency and longevity of your critical electrical infrastructure.

Choose LUBELINE™ transformer oils for dependable insulation, cooling, and long-term protection of your electrical equipment.

CONTACT US