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APPA Library

"Chapter 5: Protective Systems"
Author: Qayoumi, Mohammad H.
Published In: Electrical Distribution & Maintenance
Date: 1989

Discusses short-circuit current and its sources, reactance of rotating machines, symmetrical and asymmetrical currents, per unit calculations, short-circuit calculations, system protection, fuses, circuit breakers, relays, time-current characteristic of a protective relay, function of system protective devices, and coordination of overcurrent protective devices.  Includes schematics and photographs.



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