• Title/Summary/Keyword: Ternary ally

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Evaluation of Breaking Performance of New Contact Material for the Vacuum Interrupter (진공인터럽터용 신규 접점소재에 대한 차단 성능 평가)

  • Cha, Young-Kwang;Lee, Il-Hoi;Ju, Heung-Jin;Shin, Tae-Yong;Park, Kyong-Tae
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.34 no.1
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    • pp.50-55
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    • 2021
  • Copper-chromium alloys have been used as contact materials of vacuum interrupters in circuit breakers, but new materials with highly stable performance are required to break the high voltage and high current barrier due to the recent increase in breaking capacity. In this paper, a new contact material was fabricated from a ternary alloy instead of existing Cu-Cr alloys. Its breaking performance and endurance were verified from a synthetic test and compared with that of various contact materials. The test results verified that the breaking performance of the new contact material was excellent.