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Mechanism of Gas Generation - Dissolved Gas Analysis (DGA) of Mineral Oil Used i
The cause for the gas generation in the mineral oil is the breaking of the chemical bonds in the hydrocarbon molecules of the mineral oil. Energy is needed for the breaking of the chemical bonds and this comes from the energy contained in the fault of the transformer. The gases generated include hydrogen(H2), ...
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Reasons of Dissolved Gas Analysis (DGA) of Mineral Oil Used in Transformer
Power generation industry is most important in any country all over the world. By and large entire economy of the country depends upon its capacity to generate power. During the last decade a lot of accidents took place in this industry and causes of these accidents/explosions remained unexplained. Recently ...
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Abstract of Dissolved Gas Analysis (DGA) of Mineral Oil Used in Transformer
Transformer oil is one of the most common materials used for transformers. The oil has two important functions. The oil need to provide cooling and electrical insulation for the transformer. Any deterioration in the oil can lead to the premature failure of the transformer. When the mineral oil is subjected ...
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Dielectric Strength (Breakdown Voltage), Test Method: IEC 156
The dielectric strength / breakdown voltage of an insulating oil is a measure of the oil's ability to withstand electrical stress without failure. The test involves applying an AC Voltage at a controlled rate to two electrodes immersed in the insulating fluid. The gap is a specified distance. When the ...
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Importance of transformer oil analysis
The fault free operation of power transformers is a factor of major economic importance and safety in power supply utilities and industrial consumers of electricity. In the current economic climate, Industries / Supply Utilites tighten their control on catital spending and make cutbacks in maintenance, ...
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DGA standard extraction methods
ASTM D3612 and IEC 60567 regulates the standard extraction methods of DGA.ASTM D3612-A: Vacuum ExtractionASTM D3612-B: Stripping MethodASTM D3612-C: Head Space Analysis
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Introduction of Measurement of Surface Tension
The measurement of Surface Tension is important in the development and quality control of such things as oil, ink, soap, detergent, pharmaceutical compounds, adhesives and a wide range of coatings. There are several methods used for measuring surface tension. The most common is a technique developed ...
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Karl Fischer Method of Moisture Analysis
Karl Fisher Titration is a technique for the determination of moisture content. The technique was developed by a chemist named Karl Fischer. It is based on a reagent which reacts with water and converts the water into a non conductive chemical. Karl Fisher provides for the specific detection of water. ...
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Petroleum Products Pour Point
The pour point of petroleum product is the lowest temperature at which the petroleum product is able to flow. The lower pour point, the better low temperature fluidity of petroleum products. The pour point is showed by ℃.
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Manually Operated Grease Worker
Hand lever operated grease working machine (grease worker) is designed for short duration "worked penetration" tests on lubricating greases. Consists of one steel ASTM grease worker with hand lever mechanism mounted on a sturdy steel base. Spring loaded tightening clamps hold grease worker securely on ...
