Abstract
Synchronous machines with brushless excitation have the disadvantage that the field winding is no accessible for the deexcitation. This means that, despite the proper operation of the protection system, the slow de-excitation time constant may produce severe damage in the event of an internal or external short circuit. In this paper the test in a 15 MVA of a novel high-speed deexcitation system for brushless synchronous machines is presented. The de-excitation is achieved by inserting a resistance in the field circuit, obtaining a dynamic response similar to that archived in machines with static excitation. This system has been validated through experimental tests on a 15 MVA industrial type generator, with satisfactory results.
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.
