GPO-3 Machined Parts
Firstly, the make up of GPO3 Machining materials is a blend of fiberglass with a polyester resin. Therefore the result of this blend is a material that offers excellent ark and track resistance. The commonly known GPO3 is one of the most popular grades of GPO. This is a popular grade, specified by many Technical departments, mainly due to its high temperature insulation capabilities. As a result of being the most economic choice of GPO material, it is also noteworthy for being a material which can be easily machined to bespoke applications. Some examples of what GPO3 Materials are widely used to manufacture are Insulating supports, high voltage insulation, bus bar supports and mounting panels in electrical apparatus are just some examples. Based on the needs of its particular application GPO comes in several grades. GPO1, Gpo2 & GPO3.
Another important factor is GPO3 has a thermal index of 120°C electrical and 155°C mechanical.
So there are many advantages to using GPO3 Machining Materials. Most of all having high structural strength but also excellent Electrically Insulating properties.
Most noteworthy, raw GPO3 materials are available in standard sheets & rod sizes. But it is also available in a varying cataloged selection of channels & angles.
Finally a couple of important factors. Firstly Sheet thickness ranges from 0.8mm to 50mm. Secondly Red and White are the standard colours.
JY Machinery can meet short lead time requirements for machined plastic parts because of excellent material supplier relationships, sensible inventories, a fast quote process and a commitment to our customersWe are able to supply small and large quantities of sheets, rods, tubes (round/square/rectangular), angles, and custom fabricated parts. Our wide range of composites make it easy for us to designate the best fit for your composite insulation or bearing requirements.
Product Show
Product Parameters
| ITEM | UNIT | VALUE |
| Density≥ | g/cm3 | 1.70~1.90 |
| Flexural strength≥ | MPa | 166 |
| Tensile strength≥ | MPa | 78 |
| Compressive strength≥ | MPa | 157 |
| Shear strength≥ | MPa | 68 |
| Impact strength≥ | kJ/m2 | |
| Flatwise | 90 | |
| Edgewise | 45 | |
| perpendicular to lamination in transformer oil at 25±2℃≥ | kV/mm | 14 |
| Insulation resistance≥ | Ω | |
| Under normal condition | 1×1014 | |
| After boil in water | 1×1011 | |
| Volume resistivity≥ | Ω.cm | |
| Under normal condition | 1×1011 | |
| After boil in water | 1×1010 | |
| 1MHz loss factor≤ | — | 0.05 |
| 1MHz loss relative dielectric coeff≤ | — | 5.5 |
| Arc resistance≥ | s | 180 |
| Heat deflection temperature≥ | ℃ | 200 |
| Flammability≥ | ||
| Oxygen index | — | 50 |
| UL-94 flame | — | 94-V0 |
| Water absorption≤ | % | 0.2 |
| Area of the sheets | mm | 1050×1230,1020×2040 |
Main Insulation Product Categories
• Epoxy Glass Fiber cloth laminated sheet(3240/FR-4/G-10/FR-5/G-11)
• Phenolic laminated sheet
• Polyester Laminated sheets(GPO-3/UPGM 205)
• SMC/BMC/DMC Molded Parts
• Insulation Rods&Tubes
• Pultruded Profiles
• Engineering Plastics Parts
GPO-3 Parts Applications
1. Power Type Power supply: high-voltage inverter, inverter, high voltage switchgear and other high-quality primary insulation material, used as columns, beams, trunking and so on.
2. Breaker: Security fence, security shutters, interval pads, white clapboard, arc interrupter compartment panels.
3. Motor: The motor armature parts, activities cover the stator wedge, fixed gaskets, shims, carbon brush holder and so on.
4. Switching Equipment: partition system front and back, top, bottom, white clapboard and so on.
5. Other: arc-resistant structures.
6. insulating supports.
And more.For information on whether G10 / FR4 is suitable for your project, please contact us and speak directly to one of our engineers.
