Introduction to Oil-Immersed Transformer
The oil-immersed transformer is a common and vital power equipment, essential in the power system due to its reliability and efficiency.
Basic Structure:
The oil-immersed transformer comprises several key components: the core, windings, oil tank, insulation bushings, radiators, and other elements. The core is typically crafted from laminated silicon steel sheets to minimize eddy current losses. The windings, made of copper or aluminum wires, enable voltage transformation through electromagnetic induction. The oil tank houses the transformer oil, serving crucial purposes of insulation, cooling, and heat dissipation.
Working Principle:
Operating on the principle of electromagnetic induction, the transformer alters the AC voltage magnitude via the turns ratio of the primary and secondary windings. Connecting the primary winding to an AC power source generates alternating magnetic flux in the core, which induces a corresponding voltage in the secondary winding.
Features:
- Superior insulation: Transformer oil provides excellent insulation, preventing short circuits between windings and the core.
- Effective heat dissipation: The oil's excellent fluidity quickly removes heat generated during transformer operation, maintaining an optimal temperature range.
- Enhanced overload capacity: The transformer can endure short-term overloads, adapting to unexpected power system demands.
Application Fields:
Oil-immersed transformers are deployed in power plants, substations, industrial and mining enterprises, ensuring appropriate voltage levels for power transmission, distribution, and usage.
In industrial production, they provide stable power for high-power equipment. Meanwhile, in urban power grids, they convert transmission voltage to levels suitable for residential and commercial use.
(Note: The outlined drawing is for reference purposes only and not for approval.)
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