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Electromechanical Insulation Materials

THE GUND COMPANY'S LINE OF PRESSBOARD PRODUCTS, G-BOARD™, INCLUDES CELLULOSE-BASED PRESSBOARD FOR STANDARD APPLICATIONS AND ARAMID-BASED PRESSBOARD FOR HIGH-TEMPERATURE APPLICATIONS.

G-Board, used for electromechanical insulation in transformer applications, is manufactured using pure cellulose long fibers, free of impurities. This produces a pressboard that meets and exceeds the IEC 60641-3-1 standard.

TYPICAL G-BOARD™ APPLICATIONS

  • Power Transformers
  • Distribution Transformers
  • Instrument Transformers
  • Traction Transformers

G-BOARD™ BENEFITS

  • High Chemical Purity: Cellulose-based pressboard has high chemical purity, which makes it an ideal insulation material for power transformers.
  • Mechanical Strength: Cellulose-based pressboard has excellent mechanical strength, which helps maintain the shape and dimensions of the transformer’s oil ducts when they are electrically stressed.
  • Optimal Oil Impregnability: Cellulose-based pressboard can be impregnated with oil, which improves its insulation properties many times over.
  • Easy to Mold: cellulose-based pressboard is easy to mold and wrap around coils, and can be made of various dimensions as per requirements.
Description TGC Type ENPAY Weidmann Pucaro Dupont Construction Distribution Transformer Power Transformer
IEC 60641-3-1 Type B 3.1 A G-Board HD High Density  ENPAYBOARD® E3A T4 (TIV) ELBOARD® HD   Cellulose X  
IEC 60641-3-1 Type B 3.1 A G-Board HDPT High Density ENPAYBOARD® E3A T4 (TIV) ELBOARD® HD   Cellulose X X
IEC 60641-3-1 Type B 2.1 A & D G-Board LD Calendered Low Density     ELBOARD® N   Cellulose X  
IEC 60641-3-1 Type B 3.1 В G-Board MD DT Medium Density (Dist. Trans.) ENPAYBOARD® E3B       Cellulose X  
IEC 60763-3-1 Type B. 3.1 A1 G-Board LHD Laminated High Density ELBC TX2 ELBOARD® HDLP   Cellulose X  
IEC 60763-3-1 Type B. 3.1 A1 G-Board LHDC Laminated High Density ELBC T4 casein ELBOARD® HDLC   Cellulose X  
IEC 60641-3-1 Type B 5.1 G-Board LDFV Low Density Moldable   Form-Val ELBOARD® LD   Cellulose X  
IEC 60641-1 Type B 4.1 G-Board LDHV Low Density ENPAYBOARD® E4 Hi-Val ELBOARD® ZF   Cellulose X  
  YT594 High Density       Nomex 994 PSB Aramid X X
  YT593 Medium Density       Nomex 993 PSB Aramid X X
  YT592 Low Density       Nomex 992 PSB Aramid X X

 

Cellulose-Based Pressboard Insulation Technical Data Sheets

 
 

 

Aramid-Based Pressboard Insulation Technical Data Sheets