First, technology
1. Process Guarantee:
The high-voltage coil is wound using a high-speed winding machine that ensures consistent tension during the winding process. This mechanical tensioning system guarantees uniform wire placement and eliminates gaps between turns. The servo-controlled mechanism allows for automatic cable handling without the need for a pole gauge, ensuring precise counting and tight, compact winding. As the wire is tightly pressed together during the winding process, the high-voltage coil becomes solid and well-insulated at the ends, with no compression space between the joints. The same technique is applied to the low-voltage coil, ensuring consistent dimensions and maintaining accurate impedance voltage after winding.
2. Core Stacking:
The 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 fixed, and the column core is aligned and temporarily clamped. A C-shaped clamp is used in the remaining space to secure the column core. After applying a fixing agent to the standing storage area and allowing it to dry, the temporary fixtures are removed, and the core assembly is transferred to the next stage. This method results in a strong bond between the core laminations, reducing losses and noise, while improving overall performance.
3. Body Assembly:
Since the core does not include an iron yoke, the phase windings are mounted using mold-cast epoxy resin pads. High-voltage lead wires and tap leads are insulated using custom-matched PVC pipe sleeves. The entire body is assembled with insulation and wiring in a clean, efficient manner, resulting in fast production times, high-quality output, and improved hygiene standards.
4. Corrugated Oil Tank:
The corrugated oil tank is produced using a corrugating machine that automatically folds cold-rolled steel coils into the required sheet shape, including specific corrugation heights, pitch, and total dimensions. The folding process is quick and efficient. The corrugated sheets are then welded together, with both the end seams and reinforced edges being fully joined. The welding is done using argon arc welding, which provides a stable arc, deep penetration, and a defect-free weld. The final structure includes a base, box edges, and a rectangular mailbox formed by welding two corrugated sheets. The corrugated fins enhance heat dissipation and also help relieve internal pressure buildup, improving the transformer’s thermal performance.
Second, Technical Characteristics:
This range of transformers includes 10kV and 35kV class S9, S10, and S11 series distribution transformers, available in capacities from 30kVA to 3150kVA. The core design features a three-phase three-column structure with a multi-step cylindrical shape. Both the high- and low-voltage windings use the same advanced winding technique, ensuring excellent concentricity and strong resistance to short circuits. These transformers meet domestic industry standards and offer competitive performance compared to similar products in the market.
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