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Design
Our factory adopts computer-aided design methods, utilizing the latest technological advancements to maximize the performance of our transformers. Computers play a critical role in the transformer design process. Advanced software allows for thorough examination and optimization of each transformer component down to the smallest detail. This provides significant advantages in terms of efficiency, reliability, and durability. Through optimized design, our transformers consume less energy and minimize losses. As a result, we contribute to significant savings in energy costs for our customers and reduce environmental impact.
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1.HV Bushing
2.LV Bushing
3.LV Coil
4.HV Coil
5.Core
6.Core Clamps
7.No Load Tap Changer
8.Transformer Tank
9.Pressure Relief Valve
10.Top Oil Thermometer
11.Oil Level Indicator
12.Carrugated Fins
13.Roller
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Magnetic Circuit (Core)
In our company, silicon steels with low watt losses and high magnetic permeability are used. These steels are inspected by our company’s quality control unit, and production begins accordingly.
The structure of the magnetic circuit is as follows
• Three-leg construction
• Step lap stacking
Fabricated from cold-rolled, grain-oriented silicon steel strips (CRGO), each strip (0.23, 0.27, or 0.30mm thick) is insulated on both sides.
Oil-immersed transformers are divided into two groups: hermetic and with expansion tank. In both types, the transformer windings are completely immersed in oil. However, in hermetic type oil-immersed transformers, they are sealed to the atmosphere and do not require maintenance. Hermetic type oil-immersed transformers do not have an expansion tank, and the tank they contain is completely filled with oil. Hermetic type transformers are sealed to the atmosphere by factory-set hermetic pressure adjustment. The expansion of the oil is controlled by the elastic and undulating tank structure. The wave walls both conduct heat to the outside and absorb additional oil that expands.
Since the transformer oil does not come into contact with air, there is no oxygen intraction. Therefore, the oil is not subjected to oxidation. Since there is no contact with air, transformer oil is not affected by moisture. For these reasons, hermetic transformers have a longer service life compared to transformers with expansion tanks.
Since hermetic transformers do not have expansion tanks, their heights are lower compared to transformers with expansion tanks. This provides the opportunity for assembly in smaller spaces.
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Periodic maintenance of oil-immersed transformers with expansion tanks is required. Since the oil is constantly in contact with the atmosphere, deterioration of the oil and loss of its insulating properties may occur. Therefore, their lifespans are shorter compared to hermetic transformers. Periodic oil changes and drying of the active part are required at intervals for transformers with expansion tanks.
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The transformer serves as the central component in every package and unit substation, with its specifications adaptable to meet customer requirements and intended use: It can feature either oil-immersed conservator type or hermetically sealed design. Transformer bushings may be positioned either on the top or side of the transformer, customized to suit specific customer preferences. Capacities range widely, up to 3150 kVA. Common kVA options include 50 75, 100, 150, 160, 200, 250, 300, 315, 400, 500, 630, 750, 800, 1000, 1200, 1250, 1500, 1600, 2000, 2500, 3000, and 3150.
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