| Customization: | Available |
|---|---|
| Application: | Electrical Winding Insulation, Winding Wire Coating Insulation, Electrical Base, Shell |
| Color: | White |
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TRANSFORMER dog boneFOR WINDING
Description
Transformer dog bone is made from fiberglass with epoxy resin/polyester resin pultruded profile.
It's widely used as a dovetail spacer in coil winding assembly in dry type transformers.
Features
Insulation class F (155oC) & H (180oC) & C (200oC)
High hardness and stiffness
High mechanical strength with light weight
Excellent electrical properties with corrosion resistant
Low shrinkage and compatibility
Dimension stability and Maintenance free
Applications
To be widely used in dry type transformers,electrical motors,swithgears and electrical reactors.
Available
As per customer request
Specification
| Properties | Unit | Standard | Specified value | Obtained value |
| Water absorption | % | ASTM-D 570-81 | 0.2 MAX. | 0.007 |
| Sp. Gravity at 270 c | ASTM-D 792-91 | 2 2 | 2.2 | |
| Sp. Gravity at 270 c | Kg/ cm2 | ASTM-D 638-91 | 7500 | 10715 |
| Impact strength | KJ/m2. | ASTM-D 256-2003 | 400 min | >408 |
| Arc resistance,sec | ASTM-D-495-99 | 186 | ||
| Compressive strength(axial) | Kg/cm2. | ASTM-D 695-91 | 4000 | 6248 |
| Flexural strength | Kg/cm2 | ASTM-D 349-78 | 5000 | 9550 |
| Comparative tracking index | CTI VOLTS | IES 60112-2003 | 600 min | >600 |
| Di-electric strength proof axial | KV / mm | ASTM-D 149-97a | 50 KV/25 min. | 66 |
| Di-electric strength proof radial | KV/mm | ASTM-D 149-97a | 10 KV / MM | 15 |
| Insulation resistance | ohms | ASTM-D 257-92 | 1 x 1010 | 1.9 x 1015 |
| Martens heat distortion temperature | 0C | DIN 53462 1987 | MIN 200 | >210 |
| Splitting resistance,n | IS10192-82, Appendix D |
4000 | 5346 | |
| Glass content | % | BS-4994 1987 | 80 5 | 82 |
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