FR3 Transformer Oil
SHRI PARTH FR3 Transformer Oil – The Leading Natural Ester Fluid for Transformers
SHRI PARTH PETROCHEM proudly offers FR3 Oil, a premium natural ester-based dielectric fluid designed to
enhance transformer performance, safety, and sustainability. Developed from renewable vegetable oils, FR3 Oil is the
industry benchmark for environmentally friendly and high-performance insulating fluids.

About FR3 Oil
FR3 Oil is a natural ester fluid specifically engineered for transformers and other electrical applications. It
provides superior dielectric strength, exceptional thermal stability, and extended equipment life. Recognized globally
for its eco-friendly attributes, FR3 Oil is UL-classified as a biodegradable and non-toxic alternative to mineral oils.
Key Features :
- Superior Fire Safety: High flash point (> 300°C) reduces fire hazards significantly.
- Eco-Friendly : 100% biodegradable, non-toxic, and derived from renewable plant-based oils.
- Enhanced Transformer Performance : Increases insulation paper life by up to 8 times, prolonging equipment lifespan.
- Thermal Efficiency : Supports higher operating temperatures, allowing for greater load capacity.
- Moisture Tolerance : Absorbs and retains moisture without compromising dielectric properties.
SHRIPARTH FR3 fluid has exceptionally high flash/fire points of approximately 330/360 °C – the highest
ignition resistance of any high fire point dielectric fluid currently available. It qualifies as a “high-fire-point”, “less-
flammable”, “IEC Class K”.
SHRIPARTH FR3 fluid is compatible with standard transformer construction materials and components. SHRIPARTH
FR3 fluid should be stored, handled, and processed in a similar meticulous manner as transformer mineral oil,

FIRE SAFETY
SHRIPARTH FR3 fluid has a fire point of approximately 360°C, well above the minimum of 300°C required for high
fire point fluid classifications. Its flash point (approximately 330°C) is higher than the fire point of most other ignition
resistant dielectric fluids in use today.
In laboratory and full-scale ignition tests, SHRIPARTH FR3 fluid has demonstrated greater fire resistance than other
dielectric fluid types. Based on large-scale arc ignition testing, The probability of a pool fire evolving from SHRIPARTH
FR3 fluid was so low that heat release rate need not be determined.
Based on large-scale arc ignition and hot metal ignition tests, SHRIPARTH FR3 fluid as an equivalent safeguard to
space separation, fire barriers, and fire suppression systems for most installations.
Applications :
Power Transformers:
Ideal for distribution and power transformers in utilities, renewable energy systems, and industrial applications.
Retro fill Project s:
Suitable for replacing mineral oil in existing transformers to improve safety and extend equipment life.
Renewable Energy Systems:
Used in transformers for solar, wind, and other renewable energy projects, supporting sustainable power generation.
Critical Infrastructure :
Preferred for transformers in hospitals, data centers, and other essential facilities due to its high fire safety.
Benefits of Using FR3 Oil
Environmental Responsibility : Reduces carbon footprint and aligns with global sustainability goals.
Cost Savings : Longer transformer life and reduced maintenance lower total ownership costs.
Regulatory Compliance: Meets or exceeds IEC, IEEE, and ASTM standards.
Cost Savings : Longer transformer life and reduced maintenance lower total ownership costs.
Regulatory Compliance: Meets or exceeds IEC, IEEE, and ASTM standards.
SHRIPARTH FR3 Specifications :
Appearance : | Clear to light-green liquid |
Flash Point: | > 300°C |
Dielectric Strength : | > 56 kV |
Biodegradability : | > 98% (OECD 301B) |
Appearance: | clear, |
Odor : | slight vegetable oil odor |
Closed cup flash point : | 310 – 320°C |
Autoignition temperature: | 401 − 404°C |
Boiling point : | >360°C |
Relative density (H2O = 1): | 0.92 |
Vapor pressure (mm Hg): | < 0.01 @ 20° |
Vapor density (air = 1): | n/a |
Solubility in water: negligible; | < 0.1% |
Viscosity : | 32 to 33 CST at 40°C |
Viscosity : | 6 to 8 CST at 100°C |