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          Hot line Consulting Line:

          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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          Product consult
          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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