What Are Transformer Oil Purification Systems Used For? |
Posted: October 26, 2018 |
Transformer oil is a fluid substance that is filled in the coil of liquid transformers. It is basically a mineral-rich solution that has the ability to act as an insulation layer and withstand high temperatures. Besides transformers, high voltage capacitors, fluorescent lamps, and other circuit breakers are the most common electrical devices that use transformer oils to capitalize on its self-same features. Since it is such an essential part of the system, transformer oil needs to stay up to its highest of capabilities for any transformer operation to be successful. However, over time, transformer operations affect its physical and chemical properties, thereby reducing its capabilities significantly. Transformer oil purification is conducted with the same motive - to recover the quality of the affected features. Some of the qualitative properties instated by the process include: 1. Strong Insulation and Coolant PropertiesBy insulating and cooling a transformer, its oil ensures that the transmission of electricity amongst its coils does not create a short circuit or collapse altogether during heavy loads. For maintaining these capabilities, the oil needs to be restored to its original dielectric strength, high thermal conductivity, and chemical stability. Usually, a degraded Power transformers India is restored back to a minimum of 140 degrees' Celsius flash point, -30 degrees Celsius or lower pour point, and 28 kV or greater dielectric breakdown voltage.
2. Endurance Against Consistent Breakdown of Electrical System or Interrupted SupplyCorona discharge is a common phenomenon in electrical machinery that constantly handles high voltage current. It is basically the leakage of electric current in the form of blue sparks that are produced by the energy of ionized molecules present in a transformer oil. Since the transformer constantly leaks electrical energy in its corona discharge, it begins to breakdown under load or provide insufficient energy output. To tackle this issue, the oil is replaced during thePower transformers India. In addition, the coils are dried extensively using electrical self-heating and vacuum exposure. 3. Re-strengthened Response to Transformer Issues and FaultsUsually, liquid filled transformers have a gas detector relay called Buccholz that is responsible for the detection of potentially dangerous gas build-ups in the transformer. A completely responsive transformer oil system ensures that in case of accumulation of gases (or subsequent rise in internal pressure of the transformer) a circuit breaker is initiated into action and to unplug the transformer from the power supply. However, factors like corona discharges, overheating, and internal electric arcs can affect this safety system. Hence, transformer oil purification involves a thorough cleansing and filtering of transformer oil containers and substances. 4. Increase the Active Life of Transformer by Preventing Winding DamagesTransformers usually have an active life of 30 to 40 years, though it is considerably reduced when its internal components like windings under oxidation reacts in the presence of moisture and heat. Transformer oil purification process allows technicians to apply another layer of silica in the breather tank that can take away moisture. This, in turn, ensures that the oil BDV is maintained throughout and no chemical reactions are facilitated by its molecules. Transformer oil purification systems come in a variety of forms that are differentiable on the basis of their loading capacity, functional performance, and size. They are equipped with highly sophisticated and smart technology that allows it to operate without creating additional noise, demanding high costing maintenance and consuming precious energy resource. As the importance of transformer oil purification is reaching every industry, the demands of these systems are steadily rising, thereby promoting more innovation in their design. Today, purification systems are becoming simpler in terms of design, while their performance quality is boosting incredibly.
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