Greyhound Uninhibited Transformer Oil UNH-T1 210L
Greyhound Transformer Oil UNH-T1 is a premium uninhibited transformer oil made with high-purity virgin base oils. Specifically, it delivers superior dielectric strength, excellent thermal conductivity and long-term oxidation stability.
Because it is engineered for power and distribution transformers, rectifiers, circuit breakers and switchgear, it ensures optimal insulation and cooling. Moreover, it is PCB-free and sourced from ISO-certified plants, so it meets the highest international standards.
High-Dielectric Transformer Insulation
For example, virgin base oils enhance oxidation resistance and minimise sludge. In addition, the low moisture content protects insulation and extends service life. As a result, maintenance costs fall. Therefore, this oil competes directly with the oil majors.
Key Features:
- High dielectric strength (73 kV before treatment)
- Excellent thermal conductivity and cooling
- Long-term oxidation stability, low sludge
- PCB-free, high-purity virgin base oils
- Low moisture content (9 ppm)
- Non-corrosive, extended service life
Technical Specifications:
- Kinematic viscosity @ 40°C: 9.3 cSt (ISO 3104)
- Density @ 20°C: 0.884 kg/m³ (ISO 12185); Flash Point 145°C; Pour Point -41°C
- Breakdown voltage 73 kV (IEC 60156); DDF <0.001 @ 90°C (IEC 60247)
- Interfacial tension 44 mN/m (ASTM D971); TAN 0.01 mg KOH/g (IEC 62021)
- Meets specification: IEC 60296:2020, IEC 62535, IEC 61125
Applications:
- Power and distribution transformers
- Rectifiers and circuit breakers
- Switchgear and electrical insulation
Explore the full Greyhound industrial oil range, and review standards at the IEC.
What’s in the Box:
- 210L Greyhound Uninhibited Transformer Oil UNH-T1







