OSR Transformer Oil
OSR Transformer Oil is specially formulated to provide excellent electrical insulation and efficient cooling performance in transformers and electrical equipment.
Description

OSR Transformer Oil: Reliable Insulation & Cooling for Electrical Systems
OSR Transformer Oil is developed using highly refined base oils to
deliver strong dielectric properties and reliable thermal performance. It is designed to insulate
electrical components and prevent issues such as arcing and corona discharge within
transformers.
The formulation also acts as an effective cooling medium by dissipating heat generated
during operation, helping maintain optimal temperature and improving equipment efficiency. It offers
good oxidation stability and helps extend the service life of transformer components.
Key Benefits
-
Excellent Electrical Insulating Properties
High dielectric strength ensures reliable insulation of transformer windings and components against electrical failure. -
Efficient Heat Dissipation and Cooling
Effectively absorbs and transfers heat away from transformer windings, maintaining optimal operating temperature. -
Helps Prevent Arcing and Electrical Discharge
Prevents the formation of arcing and corona discharge between windings, cores, and surrounding environments. -
Good Oxidation Stability for Longer Service Life
Resists oxidative degradation over time, helping maintain oil quality and extend transformer service intervals. -
Maintains Performance Under High Operating Temperatures
Stable thermal properties ensure consistent insulation and cooling performance even under demanding conditions. -
Supports Reliable Transformer Operation
Consistent dielectric and thermal performance helps protect transformer assets and support long-term operational reliability.
Key Features
-
High Dielectric Strength
Superior electrical insulating capacity protects against voltage breakdown and electrical faults. -
Low Moisture Content
Carefully controlled moisture levels ensure maximum dielectric performance and prevent insulation degradation. -
High Purity Base Oil Formulation
Produced from highly refined base oils selected for their superior electrical and thermal properties. -
Stable Performance Over Time
Oxidation-resistant formulation maintains consistent performance properties throughout the oil’s service life. -
Suitable for Various Transformer Applications
Compatible with power transformers, distribution transformers, switchgear, and other electrical equipment.

Types of OSR Transformer Oil
OSR offers a comprehensive range of transformer oils to meet various industry standards and application requirements:
OSR Trans 1 — Uninhibited Transformer Oil
Standard uninhibited transformer oil conforming to IS 335-2018 Type I, suitable for general-purpose power and distribution transformers.
OSR Trans 2 — Uninhibited Transformer Oil
Uninhibited transformer oil conforming to IS 335-2018 Type II, designed for transformers requiring higher performance specifications.
OSR Trans 3 — Inhibited Transformer Oil
Inhibited transformer oil to IS 335-2018 Type I standard, offering improved oxidation resistance for extended service life.
OSR Trans 4 — Inhibited Transformer Oil
High-performance inhibited transformer oil conforming to IS 335-2018 Type II, delivering superior oxidation stability and dielectric strength.
OSR Trans 5 — Trace Inhibited Transformer Oil
Trace inhibited formulation to IS 335-2018 Type I, providing a balance between uninhibited and fully inhibited performance characteristics.
OSR Trans 6 — Trace Inhibited Transformer Oil
Trace inhibited transformer oil to IS 335-2018 Type II standard, suitable for demanding power distribution applications.
OSR Trans 10 — Inhibited Transformer Oil
Inhibited transformer oil meeting IEC 60296-2020 international standard, suitable for global electrical utility and industrial applications.
OSR Trans 40 / 41 — Standard & Inhibited
Standard uninhibited (IEC 60296-2012) and inhibited (IEC 60296-2020) transformer oils for a wide range of power and distribution transformer requirements.
OSR Trans 50 — Premium Inhibited Transformer Oil
Premium grade inhibited transformer oil to IEC 60296-2020, offering the highest level of oxidation stability and extended service performance.
OSR Natural Ester Transformer Oil
Natural ester-based transformer oil conforming to IS 16659-2017 and IEC 62770-2013, offering an environmentally friendly and biodegradable insulating fluid option.
Industries & Applications
Trusted across electrical and industrial sectors for dependable insulation and cooling performance:
Why Choose OSR Transformer Oil?
Consistent and Reliable Performance
Every batch is manufactured to strict quality standards, ensuring consistent dielectric and thermal performance you can depend on.
High-Quality Refined Base Oils
Produced from carefully selected, highly refined base oils that meet stringent purity and performance requirements.
Suitable for Demanding Electrical Applications
Formulated to perform reliably in power transformers, distribution systems, switchgear, and high-demand industrial equipment.
Meets Industry Performance Requirements
Available in formulations compliant with IS 335, IEC 60296, and IEC 62770 standards for domestic and international applications.
Wide Range of Types Available
Uninhibited, inhibited, trace inhibited, and natural ester options available to match every transformer application requirement.
Technical Support & Product Guidance
Our expert team provides full product selection guidance and technical support tailored to your specific electrical application needs.
Get Expert OSR Transformer Oil Solutions
Looking for a specific grade or formulation? Contact our team to discuss your requirements and find the right OSR Transformer Oil for your application.


