For the construction of measuring transformers
Casting Resin Systems
Baygal®/Baymidur® casting resin systems containing mineral fillers have been used for more than 35 years for high-grade solid insulation in current and voltage transformers.
These polyurethane casting resins have proven themselves with:
- High electrical resistance up to 70 kV
- Excellent dynamic characteristics
- High accuracy through low shrinkage
- Excellent durability
- Low production costs
- Compatibility with other insulating materials (paper, rubber, SF6, etc.)
Polyurethane systems for solid insulation are processed by vacuum gelation and pressure gelation in two-component casting machines.
The choice of process depends on criteria such as the type of transformer and the number required, and the same machine may be used for both processes.