02591nam a2200349 a 4500 1/45196 140819s2005 uk 001 0 eng 0080455980 (electronic bk.) 9780080455983 (electronic bk.) 9780750663977 0750663979 48155 N$T eng N$T YDXCP OCLCQ MERUC OCLCQ OPELS VLB TVG OCLCO OCLCF GR-PeUP Hewitson, L. G. Practical power systems protection [electronic resource] / Les Hewitson, Mark Brown, Ramesh Balakrishnan. Oxford ; Burlington, MA : Newnes, c2005. 1 online resource (x, 277 p.) : ill. Practical professional books from Elsevier Includes index. Front Cover; Copyright; Table of Contents; Preface; 1. Need for protection; 2. Faults, types and effects; 3. Simple calculation of short- circuit currents; 4. System earthing; 5. Fuses; 6. Instrument transformers; 7. Circuit breakers; 8. Tripping batteries; 9. Relays; 10. Coordination by time grading; 11. Low-voltage networks; 12. Mine underground distribution protection; 13. Principles of unit protection; 14. Feeder protection cable feeders and overhead lines; 15. Transformer protection; 16. Switchgear (busbar) protection; 17. Motor protection relays; 18. Generator protection Designed to increase understanding on a practical and theoretical basis, this invaluable resource provides engineers, plant operators, electricians and technicians with a thorough grounding in the principles and practicalities behind power system protection. Coverage of the fundamental knowledge needed to specify, use and maintain power protection systems is included, helping readers to increase plant efficiency, performance and safety. Consideration is also given to the practical techniques and engineering challenges encountered on a day-to-day basis, making this an essential resource for all. Electric power systems Protection. Electronic books. Brown, Mark. Balakrishnan, Ramesh. Practical professional books from Elsevier. INST UNIPILB EBOOKS 20140819 00b48155 00b48155 ONLINE 0 ScienceDirect http://www.sciencedirect.com/science/book/9780750663977 /webopac/covers/03/48155_0080455980.jpg (electronic bk.) /webopac/covers/03/48155_9780080455983.jpg (electronic bk.) /webopac/covers/03/48155_9780750663977.jpg /webopac/covers/03/48155_0750663979.jpg