Proceedings of The 2nd International Conference On Advance And Scientific Innovation, ICASI 2019, 18 July, Banda Aceh, Indonesia

Research Article

Study on AC Contactor Performance UnderVoltage Sags

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  • @INPROCEEDINGS{10.4108/eai.18-7-2019.2288540,
        author={Surya  Hardi and Rohana  Rohana},
        title={Study on AC Contactor Performance UnderVoltage Sags},
        proceedings={Proceedings of The 2nd International Conference On Advance And Scientific Innovation, ICASI 2019, 18 July, Banda Aceh,  Indonesia},
        publisher={EAI},
        proceedings_a={ICASI},
        year={2019},
        month={11},
        keywords={contactors performance sag magnitude sag duration point on wave of sag initiation},
        doi={10.4108/eai.18-7-2019.2288540}
    }
    
  • Surya Hardi
    Rohana Rohana
    Year: 2019
    Study on AC Contactor Performance UnderVoltage Sags
    ICASI
    EAI
    DOI: 10.4108/eai.18-7-2019.2288540
Surya Hardi1,*, Rohana Rohana2
  • 1: Universitas Sumatera Utara, Dr. Mansyur Street, Medan,Indonesia
  • 2: University of Muhammadyah Sumatera Utara, Medan, Indonesia
*Contact email: surya.hardi@usu.ac.id

Abstract

AC contactor many found in industrial sectors. It function is to link induction motorto utility supply and recognicedsusceptible to voltage sags. The contactorconsist of primary and auxiliary contacts. The primary contact can opened if it is supplied by voltage sags. In an industry, a contactor is used to keep electric motors abruptly restart when the voltage sag return to normal. This studydiscussesbehaviour of three contactors caused byvoltage sags and interruption.The contactors are fabricated from distinct manufactures. Voltage sag characteristics used are sag magnitude, sag duration and also point on wave (POW) of sag initiation. The testing results show that the contactors performances are greatly influenced by them. The contactors are more susceptiblewhen theywere served with deeper and longer voltage sag. Susceptiblity of contactors to sag durationis rise when they were supplied by voltage sags with the POW near to 90o. The contactors susceptibities decrease when thesag occurs at three POWs which are0o, 45oand90o.