Customization: | Available |
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Application: | Insulators, Electrical Winding Insulation, Winding Wire Coating Insulation, Electrical Base, Shell, Motor, Insulating Varnish, Switch Baseplate, High Voltage |
Color: | Dark Geen |
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Basic type | Unit | B-21 High Load |
B-06 Standard |
B-03 General |
B-01 Economic |
Static load | Mpa | 240 | 240 | 240 | 150 |
Dynamic load | Mpa | 160 | 150 | 100 | 30 |
Density | g/cm3 | 2.0 | 2.0 | 2.0 | 2.0 |
Max.speed | m/s | 0.20 | 0.20 | 0.20 | 0.10 |
Max.PV | MPa*m/s | 2.0 | 2.0 | 1.8 | 1.6 |
Coefficient of friction | - | 0.03~0.12 | 0.03~0.12 | 0.03~0.12 | 0.15~0.25 |
Working Temp. | ºC | ±180 | ±180 | ±180 | ±120 |
SHORT-TIME WORK TEMPERATURE | ºC | -180~+230 | -180~+230 | -180~+230 | -120~+140 |
Radial compressive strength | Mpa | 550 | 550 | 550 | 200 |
Hardness | HRM | 95 | 95 | 95 | 85 |
Linear thermal expansion factor | Um/mºC | 13×10-6 | 13×10-6 | 13×10-6 | 30×10-6 |
Color | - | Black | Black | Black | Black |
Item | Uint | Value | ||
Density | g/ cubic centimeters | more than 1.9 | ||
Compression Strength | Mpa | more than110 | ||
Shearing Strength | Mpa | more than 25 | ||
Bending Strength | Mpa | more than210 | ||
Bending Strength(Circumference) | Mpa | more than 400 | ||
Air tightness | Gas pipe | Mpa | 2.94 | No leak |
Oil pipe | 58.8 | |||
Surface breakdown voltage after wettingin normal air for 1 min with gap between electrodes of 30mm | KV | more than15 | ||
Parallel to laminate breakdown voltage ( in transformer oil of 90±2ºC) | KV | more than 25 | ||
Perpendicular to laminate breakdown voltage (in transformer oil of 90±2ºC,5min wallthickness 4mm ) | KV | more than 22 | ||
Dielectric loss factor 50 Hz | less than0.01 | |||
Leakage current (between gap of 500mm at 40 kv dc500mm40KV | MA | less than 1 | ||
Content of fiberglass | % | 70 | ||
Water absorbtion rate | % | less than 0.02 |
SPECIFICATIONS FOR EPOXY FIBERGLASS WINDING TUBES | |||
Category | Characteristics | Unit | Value |
Mechanical Properties |
Tensile strength(ring) | MPa | ≥900 |
Tensile strength(axial) | MPa | ≥55 | |
Compressive strength(longitudinal) | Mpa | ≥150 | |
Perpendicular to the bending | MPa | ≥120 | |
Vertical bending modulus of elasticity | MPa | ≥1.6X104 | |
Shear strength | MPa | ≥700 | |
Electrical Properties |
Axial impact withstand voltage | - | 7KW/mm, 5 times |
Radial frequency withstand voltage | - | 8KW/mm, 1 min | |
Medium wearing factor(50Hz) | - | 7.65X10-3 | |
Relative dielectric constant(50Hz) | - | 5.59 | |
Partial discharge(35KW) | pC | ≤5 | |
Water diffusion test | - | 12KW, 1min | |
Sheet resistivity | Ω | ≥9.5X1014 | |
Volume resistivity | Ω.m | ≥6.0X1012 |