Ravindranath, B. Jha, C.S. Chander, M <br/><br/>
Power System Protection and Switchgear 

 - New Delhi  Wiley Eastern Ltd  1977 
 - p.444 
<br/><br/><label>ISBN: </label>0-85226-758-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Protective Relays<br/>Comparators
<br/><br/><label>Dewey Class. No.: </label>621.3173 R256P