GEAFOL Cast-resin Dry-type Transformers
1- LV terminals 2-HV terminals 3-Cross-flow fans
4-Three-leg core 5-Resilient spacers 6-HV winding 7-LV winding
8-Insulation: Mixture of epoxy resin
and quartz powder 9-Clamping frame and truck.
and quartz powder 9-Clamping frame and truck.
Flammability test of cast-resin transformer
Transformer with plug-type cable connections
Transformer in protective housing
Dry-type converter transformer.
These
are special oil-immersed or cast resin power transformers that are
designed for the special demands of thyristor converter or diode
rectifier operation. The effects of such conversion equipment
on transformers and additional construction
requirements are as follows:
on transformers and additional construction
requirements are as follows:
- Increased load by harmonic currents
- Balancing of phase currents in multiple winding systems (e.g. 12-pulse systems)
- Overload factor up to 2.5
- Types for 12-pulse systems, if required.
Dry-type converter transformer
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