Oil-immersed transformer: the stability guardian of the power system
With the increasing electricity demand, the stability and reliability of the power system have become crucial issues. In this context, oil-immersed transformers have become the guardians of power system stability due to their excellent and stable performance.
Due to their excellent voltage and current control capabilities, oil-immersed transformers play a crucial role in substations, power plants, and distribution networks. They can accurately reduce high voltage to low voltage suitable for various devices and systems or raise low voltage to meet long-distance transmission needs. The ability to change voltage makes oil-immersed transformers an indispensable power system component. Oil-immersed transformers can also provide stable voltage and current output, ensuring the power system's safe, reliable, and efficient operation.
How can oil-immersed transformers achieve a stable output of voltage and current?
1. The oil-immersed transformer adjusts the output voltage by changing the magnetic field strength of the iron core. When the current of the high-voltage power supply passes through the high-voltage coil, a magnetic field is formed in the iron core. This magnetic field is then transmitted to the low-voltage coil, generating a new voltage in the low-voltage coil. By adjusting the magnetic field strength of the iron core, the transformer can accurately control the size of the output voltage, thereby achieving stable voltage output.
2. The compensating capacitor in the oil-immersed transformer is connected in parallel with the transformer to compensate for the reactive power of the transformer. This helps maintain the output voltage's stability and reduce voltage fluctuations and distortion.
3. The oil-immersed transformer also has a control circuit at the center of the entire transformer. The control circuit will automatically adjust the magnetic field strength of the transformer based on changes in input voltage, ensuring the stability of the output voltage. This automatic regulation mechanism enables oil-immersed transformers to cope with various power load changes and maintain stable voltage and current output.
4. During the operation of an oil-immersed transformer, the oil is continuously circulated and cooled through the oil circuit system to ensure that the transformer maintains a stable temperature during long-term operation, thereby further ensuring the stable output of voltage and current.
The characteristics of oil-immersed transformers:
1. Good insulation performance: Oil-immersed transformers use transformer oil as the insulation medium, which can effectively isolate the high-voltage and low-voltage parts, ensuring the normal operation of the transformer.
2. Excellent heat dissipation effect: Transformer oil not only serves as an insulation medium but also plays a role in heat dissipation. The thermal conductivity of oil is good, which can effectively transfer the heat generated inside the transformer and prevent damage to the transformer due to overheating.
3. High efficiency and large capacity: Oil-immersed transformers usually have high efficiency and large capacity in design and manufacturing, which can meet high load and long-term operation requirements.
4. Low loss and low cost: Oil-immersed transformers have relatively low losses during operation, which can effectively diminish energy consumption and operating costs.
5. Wide application range: Oil-immersed transformers are suitable for various environments and usage scenarios and can operate indoors and outdoors stably and reliably.
6. Multiple classification methods: Oil-immersed transformers can be classified according to their usage, winding structure, and purpose to meet the needs of different fields.
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PDDN Photoelectron Technology Co., Ltd. focuses on the research, development, and application of power electronics technology and is devoted to supplying customers with high-quality transformers， thyristors, and other power products. Our company mainly has solar inverters, transformers, voltage regulators, distribution cabinets, thyristors, modules, diodes, heaters, and other electronic devices or semiconductors. The electronic devices and semiconductor products provided by PDDN Photoelectron Technology Co., Ltd. have the characteristics of high efficiency, safety, and reliability. They are widely used in power systems, industrial control, energy management, and other fields.
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