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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.
DescriptionTGCTypeWeidmannPucaroDupontConstruction
60641-3-1 Type B 3.1 AG-Board HDHigh DensityT4 (Tiv)Elboard HD Cellulose

IEC 60641-3-1 Type B 2.1 A & D

G-Board LD Calendered

Low Density

 Elboard N Cellulose
PSP 3050G-Board HD3050High Density   Cellulose
60641-3-1 Type B 3.1 ВG-Board MD DTMedium Density (Dist. Trans.)   Cellulose
60763-3-1 Type B. 3.1 A1G-Board LHDLaminated High DensityTX2HDLP Cellulose
60763-3-1 Type B. 3.1 A1G-Board LHDCLaminated High DensityT4 caseinHDLC Cellulose
60763-3-1 Type B. 3.1 A1G-Board LHDpLaminated High DensityT4 PolyHDLP Cellulose
IEC 60641-3-1 Type B 5.1G-Board LDFVLow Density MoldeableForm-ValElboard HD Cellulose
IEC60641-1 Type B 4.1G-Board LDHVLow DensityHi-ValElboard HD Cellulose
 YT594High Density  Nomex 994 PSBAramid
 YT593Medium Density  Nomex 993 PSBAramid
 YT592Low Density  Nomex 992 PSBAramid

 

Cellulose Based Pressboard Technical Data Sheets

 

Aramid Based Pressboard Technical Data Sheets