Polyester GPO3 part used as transformer plate High Flexural strengh
Product Description:
Polyester GPO-3 sheet or related products are consists of non-alkali glass mat impregnated and boned with an unsaturated polyester resin ,and laminated under high temperature and press, this material can be processed into the part you need with high precise tolerance and smooth surface.
Our GPO3 material can be machined as top place and bottom plate which used in the electrical reactor and transformer. the part have high phisical properties and good structure strength. and also thin GPO3 sheet can be machined into air gap.
Feature:
Hong Cheng Grade | HC-GPO3 | |||
IEC 893 / EN 60893 Grade | UP GM 203 | |||
DIN 7735 Grade | HM 2471 | |||
ANSI (NEMA) Grade NEMA LI-1 | GPO-3 | |||
Items | Test Method | Unit | Typical Values | |
Physical Properties | Color | Visual inspection | ---- | Red/White/Brown/Grey |
Specific Gravity | IEC 60893-2:2003 | g/cm3 | 1.95-2.05 | |
Water absorption | ISO62:2008 | % | ≤0.5 | |
Mechanical properties | Tensile Strength | IEC 60893-2:2003 | Mpa | ≥130 |
Compressive strength | IEC 60893-2:2003 | ≥300 | ||
Flexural Strength | IEC 60893-2:2003 | ≥180 | ||
Impact strength | IEC 60893-2:2003 | KJ/m2 | ≥60 | |
Electrical properties |
Volume Resistivity | IEC 60093:1980 | Ω·m | ≥ 1.0 x 1010 |
Surface Resistivity | IEC 60093:1980 | Ω | ≥ 1.0 x 1012 | |
Electric Strength ┴ | IEC 60893-2:2003 | kV/mm | ≥ 12 | |
Breakdown Voltage // | IEC 60893-2:2003 | kV/25mm | ≥ 80 | |
Arc Resistance | IEC 61621:1997 | sec | ≥180 | |
Proof Tracking Index PTI | IEC 60893-2:2003 | --- | ≥600 | |
Dielectric Constant | IEC 60893-2:2003 | --- | 4.0-5.0 | |
Dissipation Factor | IEC 60893-2:2003 | --- | ≤0.03 | |
Thermal properties | Coefficient of Thermal Expansion | ASTME 228-11 | 1/K | ≤2x10-5 |
Temperature Index | IEC 60085:2004 | ℃ | 155 | |
Flame Resistance performance | Oxygen Index | ISO 4589-2:1996 | %O2 | ≥ 30 |
Flame Resistance | IEC 60893-2:2003 | --- | V-0 | |
Toxicant(Emission halogen etc.) | E662 | --- | Low | |
Other properties | The anti microbial properties of bacteria | G21-G22 | --- | good |
Why Choose us as the Insulation Bracket Supplier:
1.Proficient in advanced programming software, such as: Mcam9.1, UG software programming, to meet the requirements of machining of complex surface;
2.We have a large number of senior engineers, and do the independent development of tooling and fixture to meet the production requirements of customers with high quality, high yield and low cost;
3.We have dozens of high precision CNC machining equipment, can satisfy the customer delivery requirements of shorter production;
4.We have 850 sets of CNC machining center (with a knife) mufti-step processing can complete complex parts;
5.We have many 1000*1200 large platform of Longmen CNC machining centers,can complete large panel parts with high precision production to avoid error caused by splicing processing processing.
What's our Packing for transportation?
Pallet:
Wooden box: