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0546-7076766

Corona Resistance PI Film

From last century 1980s, variable-frequency and variable-speed motor took place of Dc speed-regulating motor. Among all the speed adjustment mode, frequency control developed fastest because of its good performance and efficiency, so it has been widely used. But, the interturn of variable-frequency motor will easily happen partial discharge, so it will need insulation protection between winding coils, especially for Corona Protection. Corona Resistance PI film has excellent corona resistance, electrical property, thermal property, radiation resistance and chemical properties, so it can be used widely in large scale traction motors, variable frequency motors, wind power motors and other equipment, especially in the field of Chinese bullet train motors.

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CSH:18954626886 0546-7076766

Type

CR22

CR25

FCR33

FCRF33

FCR38

FCRF38

Thickness

μm

22±2

25±2

33±3

33±3

38±3

38±3

Tensile strength

MPa

≥135

≥135

≥80

≥80

≥80

≥80

Elongation at break

%

≥40

≥40

≥40

≥40

≥40

≥40

Dielectric strength

MV/m

≥200

≥200

≥120

≥120

≥120

≥120

Surface resistivity

Ω

≥1014

≥1014

≥1014

≥1014

≥1014

≥1014

Volume Resistivity

Ω.cm

≥1012

≥1012

≥1012

≥1012

≥1012

≥1012 

Width

mm

According to customer’s requirements

 

Length

m

According to customer’s requirements



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