Wet-Molded & Field-Control Components
Insulated Grading Spheres
Also known as: Equalizing Balls, Grading Balls
Insulated grading spheres are used for electric-field control and insulation protection in transformer lead-out and high-field areas. Copper or aluminum sphere bodies can be covered with insulation pressboard according to the required design.
Dimensions, materials, tolerances and testing requirements are confirmed according to customer drawings and order specifications.
Key functions and options
- Copper or aluminum base options
- Pressboard insulation covering
- Custom shapes and sizes
- Customer-supplied metal parts can be processed
Typical applications
- Transformer lead-out areas
- High-electric-field regions
- Field grading and insulation protection
Quotation preparation
Information to include with your RFQ
- Metal-core drawing and material
- Finished dimensions
- Insulation build
- Quantity
For custom parts, a dimensioned drawing is the most reliable starting point. Drawings can be emailed to sales@boreviax.com.
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