Transformer Oil
Transformer oil, also known as insulating oil, is a highly refined mineral oil that is stable at high temperatures and possesses excellent electrical insulating properties. It is used in transformers, capacitors, and other electrical equipment to insulate, suppress corona and arcing, and serve as a coolant.
Transformer Oil Type
Mineral Oil:
- Naphthenic Mineral Oil: Contains more cyclic hydrocarbons, providing better oxidation stability and low-temperature performance.
- Paraffinic Mineral Oil: Contains more straight-chain hydrocarbons, which offer higher oxidation stability but poorer low-temperature properties.
Synthetic Oils:
- Silicone Oil: Offers excellent thermal stability and fire resistance but is more expensive.
- Esters (Synthetic and Natural): Biodegradable and have good fire safety properties. Natural esters, derived from vegetable oils, are increasingly used for their environmental benefits.
Key Properties and Requirements
- Dielectric Strength: The ability to withstand electrical stress without breaking down.
- Thermal Conductivity: Efficient heat transfer to keep the transformer cool.
- Oxidation Stability: Resistance to degradation over time when exposed to oxygen.
- Moisture Tolerance: Ability to absorb and hold moisture without significant loss of dielectric strength.
- Chemical Stability: Resistance to chemical reactions that could produce harmful by-products.
- Low Pour Point: Ability to remain fluid at low temperatures to ensure proper circulation and cooling.
Applications
- Power Transformers: Used in electrical substations and power plants.
- Distribution Transformers: Found in utility poles and underground distribution systems.
- Instrument Transformers: Used in metering and protection circuits.
- High-Voltage Capacitors: Provide insulation and cooling in high-voltage capacitor banks.
Customer benefits
- Oxidation resistance prevents sludge, deposits, and soluble compounds in high ambient temperatures or extended service conditions
- Efficient conductive heat transfer improves component cooling performance
- Low solvency protects electrical wire enamels
- Rapid arc quenching reduces contact erosion
- High dielectric strength and low dissipation factor provide excellent insulating characteristics
Using the appropriate transformer oil and maintaining its quality through regular testing and proper handling are critical for the reliable and efficient operation of transformers and other electrical equipment.
FOR ADDITIONAL CONTACT: SUPER EDGE TEL: +971-56-5003416 Email – info@superedgeme.com
