Sensitivity of AC coil contactors to voltage sags, short interruptions, and undervoltage transients

Saša Ž Djokić, Jovica V. Milanović, Daniel S. Kirschen

    Research output: Contribution to journalArticlepeer-review

    Abstract

    This paper discusses the sensitivity of ac coil contactors to voltage sags, short interruptions, and undervoltage transients on the basis of extensive test results. Existing standards and previously published work are reviewed, and a detailed description of the testing procedure used is presented. The following tests were performed: sensitivity to rectangular voltage sags with ideal and nonideal supply voltage, testing with two-stage voltage sags, and voltage sags which occur during starting of large motors, as well as testing against measured voltage sag. The importance of voltage sag characteristics besides magnitude and duration was also investigated. Generic sensitivity curves are proposed. © 2004 IEEE.
    Original languageEnglish
    Pages (from-to)1299-1307
    Number of pages8
    JournalIEEE Transactions on Power Delivery
    Volume19
    Issue number3
    DOIs
    Publication statusPublished - Jul 2004

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