Abstract
Significant changes have occurred in the protection of generators in the past 10 years, which impact generators at petroleum refineries and chemical plants. This paper discusses these changes as well as the risks of not addressing them. It specifically addresses the risks in seven functional areas where 20+ year old generator protection is inadequate. These areas include sensitive ground fault protection, unbalanced current protection, field ground fault protection, over excitation protection, inadvertent (accidental) generator energizing protection and high speed loss of field protection. In addition, the paper discusses hybrid grounding of the generator stator windings, which substantially reduces stator ground fault damage - avoiding lengthy generator outages. This new concept in generator grounding was introduced in a series of IAS I&CPS Generator Grounding Working Group papers published in 2002. This paper highlights upgrading generator fault protection using digital technology.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
