Selecting optimal insulation materials is critical for oil-immersed transformer design and performance. As a leading transformer manufacturer in China, Gaomi Hongxiang specializes in high-quality insulating cardboard for electrical equipment and custom insulating solutions. This guide explores key considerations for transformer insulation parts processing equipment selection, helping technical evaluators, procurement specialists, and project managers make informed decisions about transformer core protection and longevity.

Understanding Oil-Immersed Transformer Insulation Requirements

The insulation system in oil-immersed transformers serves multiple critical functions: preventing electrical breakdown, withstanding thermal stresses, and maintaining structural integrity under mechanical forces. At Gaomi Hongxiang, our R&D team emphasizes three core material properties when designing transformer insulation parts processing equipment:

• Dielectric strength (typically 40-60 kV/mm for premium insulating cardboard)
• Thermal class rating (Class A to H, with most power transformers requiring Class B or F)
• Oil compatibility (measured by degree of polymerization retention after aging tests)

Comparative Analysis of Insulation Materials

When evaluating custom insulating cardboard options, consider this performance matrix based on IEC 60641 and IEEE Std C57.12.00 standards:

Technical Specifications for Transformer Core Protection

Our transformer insulation parts processing equipment incorporates advanced features to meet diverse operational requirements:

1. Precision thickness control (±0.02mm tolerance)
2. Oil penetration resistance (≤5mg/cm² per ASTM D2413)
3. Compressive strength (≥300N/mm² for structural components)
4. Partial discharge level (<10pC at 1.5Ur)

Why Choose Gaomi Hongxiang for Your Transformer Needs?

With 15+ years specializing in insulating laminated wood and EVA molding processing, we offer:

• Custom formulations for extreme climates (arid, tropical, or sub-zero)
• Full compliance with IEC, ANSI, and GB standards
• Vertical integration from raw materials to finished transformer assembly
• 24/7 technical support for international clients

Contact our engineering team today to discuss your specific oil-immersed transformer requirements and receive a tailored insulation solution proposal within 48 hours.