Abstract
The paper deals with the protection of generators, power transformers, feeders and busbars and with the characteristics of protective transformers. The subject-matter has been selected for the following purposes:(a) To raise some controversial issues relating to protective-gear practice in order to promote discussion upon them in the hope that this will lead to more general agreement. Among these issues are over-current and negative-phase-sequence protection of generators, earthing of the neutral point, the use of Post Office pilot wires for protection, the application ofcarrier-distance protection, the duplication and supervision of busbar-zone protection, and the overlapping of current-transformers.(b) To outline some new problems which have arisen.(c) To describe some new developments of importance, such as instantaneous differential protective system for power transformers, high-resistance pilot-wire scheme, a starting scheme for carrier protection and a biased differential system of busbar-zone protection.(d) To examine briefly the performance requirements of protective transformers.
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 callMore From: Proceedings of the IEE - Part II: Power Engineering
Disclaimer: 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.
