The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Accelerated Insulation Life Estimation for PAI/Nano Silica Enamelled Wire under Inverter Surge and Temperature Stress

인버터 서지와 온도스트레스 하에서 PAI/Nano Silica 에나멜와이어의 가속절연수명 평가

  • Park, Jae-Jun (Department of Electrical Electronic Engineering, Joongbu University)
  • Received : 2016.08.09
  • Accepted : 2016.09.29
  • Published : 2016.10.01
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Abstract

AC and DC insulation breakdown voltage was studied for magnet wire coated with double layers of high flexural PAI layer and high anti-corona PAI/nanosilica (15 wt%) layer. The specimens were prepared at various drying temperatures (T/D): $22^{\circ}C$, $240^{\circ}C$, and $260^{\circ}C$, respectively. The increase effects of nanosilica on AC and DC insulation breakdown voltage were not so significant compared to that of magnet wire coil coated with original PAI. And the AC and DC insulation breakdown voltage was improved by decreasing diameter of winding coil. As T/D temperature increased, AC and DC insulation breakdown voltage decreased.

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References

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