Blackburn, J. Lewis <br/><br/>
Protective relaying /  principles and applications 
J. Lewis Blackburn, Thomas J. Domin 
 - 3rd.ed. 
 - Boca Raton  CRC Press  2007 
 - 633p.  ill.  24cm. 
<br/><br/>Includes bibliographical and index 
<br/><br/><label>ISBN: </label>1574447165  RM541.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Protective relays