Generator Backup Overcurrent Protection

  • David S. Baker
  • Published 1982 in IEEE Transactions on Industry Applications

Abstract

A concern that the characteristics and correct application of the generator backup relay are misunderstood is addressed in this report to the Power Systems Protection Committee. It is inherently a secure device, and rarely has the opportunity to operate in its intended capacity. So the question was asked, ``Do generator backup overcurrent relays really protect anything?'' In response a description of the function and operating characteristics of the backup relays, a discussion of generator fault current behavior, examples of relay settings for a typical application, and methods and criteria for determining that the relay both protects the generator and operates selectively with other protective devices are included.

12 Figures and Tables

Cite this paper

@article{Baker1982GeneratorBO, title={Generator Backup Overcurrent Protection}, author={David S. Baker}, journal={IEEE Transactions on Industry Applications}, year={1982}, volume={IA-18}, pages={632-640} }