First, technology
1. Process Guarantee:
The high-voltage coil is wound using a high-speed winding machine that ensures consistent tension throughout the process. This mechanical tensioning system helps maintain uniform wire placement and eliminates gaps between windings. The servo-controlled system allows for automatic cable handling without the need for pole gauges, ensuring accurate counting and compact winding. As the wire is tightly pressed and aligned during winding, the high-voltage coil becomes solid and well-insulated at both ends. There is no compression space between the tight joints, which contributes to structural stability. Similarly, the low-voltage coil follows the same precise winding technique. As a result, the axial height of each phase winding meets the design specifications, ensuring accurate impedance voltage values.
2. Iron Core Stacking:
The iron core is assembled on a pneumatically operated upright stacking table. A specialized positioning tool is used to stack the core without overlapping the yoke. The lower core clamp is secured first, followed by channeling the column iron and temporarily clamping it with an upper clamp. A C-shaped clamp is used to provide additional support in the space between the column irons. Once the core is properly positioned, a fixing agent is applied to the standing storage area. After drying and hardening, the temporary fixtures are removed, and the core is transferred to the assembly stage. This method results in a strong bond between the laminations, reducing losses and noise while improving overall performance.
3. Body Assembly:
Since the core does not include an iron yoke, the phase winding units are placed using molded epoxy resin pads. High-voltage lead wires and tap leads are insulated using specially designed PVC pipe sleeves. The body of the transformer is assembled with precision, ensuring fast and clean assembly. This method enhances quality control and maintains a high standard of hygiene throughout the manufacturing process.
4. Corrugated Fuel Tank:
The corrugated fuel tank is manufactured using a folding machine that automatically shapes cold-rolled steel coils into the required sheet form. This includes dimensions such as corrugation height, pitch, length, and width. The folding process is efficient and precise, and the edges are welded together using argon arc welding, which ensures a stable arc and deep penetration, resulting in a smooth and defect-free weld. The corrugated tank features a base, box edge, and a rectangular mailbox formed by welding two corrugated sheets. The corrugated fins not only improve heat dissipation but also help relieve internal pressure buildup, enhancing the tank’s durability and performance.
Second, Technical Features:
This transformer series includes 10kV and 35kV class S9, S10, and S11 distribution transformers with capacities ranging from 30 to 3150 kVA. The core is a three-phase three-column structure with a multi-step cylindrical shape. Both the high and low-voltage coils use the same advanced winding technology, ensuring excellent concentricity and strong resistance to short circuits. These transformers meet or exceed domestic industry standards in terms of key technical parameters, making them reliable and efficient solutions for power distribution systems.
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