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
- G-Board HD by The Gund Company
- G-Board HDPT by The Gund Company
- G-Board HD3050 by The Gund Company
- G-Board LD Calendared by The Gund Company
- G-Board LDFV by The Gund Company
- G-Board LDHV by The Gund Company
- G-Board LHDC by The Gund Company
- G-Board MD DT by The Gund Company
