Hewitson, L. G. Practical power systems protection / Les Hewitson, Mark Brown, Ramesh Balakrishnan - Oxford : Newnes, 2005 - x, 277 p. : ill. ; 26 cm. - Practical professional books from Elsevier . Includes index ISBN: 9780750663977 (pbk.) Subjects--Topical Terms: Electric power systems--Protection