Class F Cast Resin Transformer Structure

Class f cast resin transformer is the current advanced energy-saving dry-type transformer, which has the characteristics of maintenance-free, anti-humid heat, fireproof, explosion-proof, small partial discharge, and strong heat dissipation capacity. About the structural characteristics of amorphous alloy dry-type transformers:

1. The coil is wound with copper wire or foil, reinforced with glass fiber, and the epoxy resin is vacuum-dried, degassed and dehumidified without filler and cast as a whole, with high mechanical strength, short-circuit resistance and strong impact resistance.

2. The head and end of the high-voltage winding and the middle tap are embedded with copper inserts, with good rigidity, easy to adjust gears, and beautiful and tidy.

3. The iron core is made of high-quality grain-oriented cold-rolled silicon steel sheets, with 45-degree full oblique multi-step joints. The surface is covered with resin insulating coating, which is resistant to moisture, rust and noise.

4. The iron core, the clamp and the coil are clamped by elastic parts, so that the coil is in a stable pressing state to reduce noise.

5. The class f cast resin transformer is designed according to self-cooling. Longitudinal ventilation passages are reserved inside the wall of the high (low) voltage coil cast as a whole. It can be equipped with a forced air cooling device (cooling fan). After the forced air cooling device is adopted, the output capacity can be increased by 20 %.

6. Equipped with a thermostat, place platinum resistance (Pt100) in the embedded hole on the top of the low-voltage coil. To monitor the temperature rise of the transformer winding, automatically start and stop the cooling fan, and have the functions of fault alarm, over-temperature alarm and over-temperature trip, to provide a reliable overload protection device for class f cast resin transformer, thereby improving the safety of dry-type transformers.