Question: What Is The Viscosity Of Transformer Oil?

What are the functions of Transformers?

A transformer is an electrical apparatus designed to convert alternating current from one voltage to another.

It can be designed to “step up” or “step down” voltages and works on the magnetic induction principle..

Is transformer oil harmful?

The main constituent of transformer oil is polychlorinated biphenyl (PCB) which is responsible for producing toxicity in humans. Chronic exposure with PCB may cause some toxicity such as hepatotoxicity and neurotoxicity.

What chemicals are in Transformers?

Polychlorinated biphenyls (PCBs) are a group of manmade chemicals. They are oily liquids or solids, clear to yellow in color, with no smell or taste. PCBs are very stable mixtures that are resistant to extreme temperature and pressure. PCBs were used widely in electrical equipment like capacitors and transformers.

What is the grade of transformer oil?

Mineral Insulating Oil as per IEC 60296-2003 with maximum pour point of -400C (LCSET= – 300C) 1) Standard Grade (ST) –Trace inhibited – For General use in Power and Distribution Transformers 2) High Grade (HI) – Inhibited – For Use in Generator, Industrial, HVDC transformers 3) High Grade (HIG) – Inhibited, with …

Is specification of transformer oil?

The leading transformer standard specifications are IEC 60296 and ASTM D 3487. The requirements in the standards are defined with minimum and maximum limits. … Transformer oil can have properties that are just passing specification limits or can have properties which exceeding the requirements.

What is inside of a transformer?

Distribution transformers consist of a magnetic core made from laminations of sheet silicon steel (transformer steel) stacked and either glued together with resin or banded together with steel straps, with the primary and secondary wire windings wrapped around them.

What is the specific gravity of transformer oil?

For example, if the specific gravity of water is 1.0 and oil is 0.89, the oil will float on top of the water….Specific Gravity of Transformer Insulating Fluids.FluidSpecific GravitySample LocationMineral Oil0.89Bottom5 more rows•Jan 24, 2015

How dense is oil?

Densities of common liquids like acetone, beer, oil, water and moreLiquidTemperature – t – (oC)Density – ρ – (kg/m3)Crude oil, 35.6o API60oF (15.6oC)847Crude oil, 32.6o API60oF (15.6oC)862Crude oil, California60oF (15.6oC)915Crude oil, Mexican60oF (15.6oC)973159 more rows

What is the function of transformer oil?

Transformer oil is a mineral based oil that is commonly used in transformers for its chemical properties and dielectric strength. This oil in your transformer acts as an insulator and a cooling agent. Over time, the oil will degrade resulting in the potential for faults and costly repairs.

What is the name of oil used in transformer?

Mineral oil and Synthetic oil are the majorly used transformer oil. These are the petroleum products, like Naphthenic based transformer oil and Paraffinic based transformer oil. Naphthenic based transformer oils are known for their heat distribution, which is one of the main problems with transformer.

What is BDV in transformer?

The dielectric strength of transformer oil is also known as the breakdown voltage (BDV) of transformer oil. Breakdown voltage is measured by observing at what voltage, sparking strands between two electrodes immersed in the oil, separated by a specific gap.

Which fuel is used in transformer?

Transformer oilTransformer oil or insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties. It is used in oil-filled transformers, some types of high-voltage capacitors, fluorescent lamp ballasts, and some types of high-voltage switches and circuit breakers.

What is the density of transformer oil?

Mineral transformer oilMineral based oilDensity at 60°F (15.6°C)0.880 *10³kg/m³Kinematic viscosity at 68°F (20°C)22cStKinematic viscosity at 212°F (100°C)2.6cSt11 more rows•Jun 3, 2012

What is the weight of transformer oil?

Specific weight of transformer oil is the ratio of its weight at 20ºC to the weight of the same volume of water at 4ºC. Usually this parameters is not regulated and is within 0.856 to 0.886. If the oil is heated, its specific weight decreases, and vise versa when the oil is cold.

What is ppm in transformer oil?

Measured in parts per million (ppm) using the weight of moisture divided by the weight of oil. Moisture content in oil lowers the insulating system dielectric strength and allows flashover that can damage a transformer. For mineral oil, a generally accepted maximum moisture content is 35 ppm.