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@article{Jagaduri2011FieldEO, title={Field evaluation of automatic restart of essential motors using microprocessor-based protective relays}, author={Rekha T. Jagaduri and D. N. Bradley and Lawrence J. Kingrey and Tuyen Nguyen}, journal={2011 Record of Conference Papers Industry Applications Society 58th Annual IEEE Petroleum and Chemical Industry Conference (PCIC)}, year={2011}, pages={1-9}, url={https://api.semanticscholar.org/CorpusID:5928412}}
  • R. Jagaduri, D. Bradley, Tuyen Nguyen
  • Published in Petroleum and Chemical… 28 November 2011
  • Engineering

Industrial facilities that employ numerous electrical motors for vital functions require either continuous operation, ride through, and/or automatic restart operation for abnormal conditions, such as momentary voltage loss, voltage dips, or other system voltage transients. With large essential motors, it is impractical or not economical to provide an uninterruptible power source. Therefore, the next option to reduce the effects of transient interrupted service is to automatically sense the…

7 Citations

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2

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The assumption that a voltage sag is rectangular, no longer holds in a system with large induction motor loads. The motors decelerate during the short circuit. After fault-clearing they will

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