What is the difference between SGB (VPI) and SCB dry-type transformers?

1. In terms of coil winding: SGB is a non-encapsulated dry-type transformer, and the low-voltage coil of SCB dry-type transformer is wound with foil.

2. Winding structure: Copper foil is used for single-layer winding, and the interlayer material contains epoxy resin with latent curing agent and lower-level composite foil.

3. Winding material: Oxygen-free copper with good conductivity is used, and its copper content is 99.99%. The low-voltage coil of SGB dry-type transformer is wire-wound.

4. Winding structure: cylindrical coil, multiple flat copper wires covered with ordinary glass fiber.

5. SGB type dry-type transformer has stronger short-circuit resistance than SCB type dry-type transformer.

6. In terms of heat dissipation: SCB type dry-type transformers are better than SGB type transformers.

7. In terms of load loss: SCB type transformers are lower than SGB type dry-type transformers.

8. In terms of temperature rise: the heat dissipation of SCB type transformers is better than that of SGB type dry-type transformers.

9. Installation environment: SCB dry transformer can be installed near the load to reduce line loss and installation cost; while SGB must be installed in a specific environment.

cast resin type transformer