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EE 468 — Power System Protection

BSc BSc Electrical/Electronic Engineering · Kwame Nkrumah University of Science and Technology

Switchgear: Arc phenomena, arc control, D.C. and A.C. interruption, recovery, voltage, transients, types of circuit-breakers, applications and limitations, rating and testing.Protection:Current and voltage transformers, principles of relaying. Electromagnetic relays and solid state electronic equipments. Pilot circuits. Applications to over current, differential and distance (impedance) relaying. Characteristics of fuses, selection and application of fuses. Brief description of reclosers and their applications. Brief treatment of protection devices coordination using time-current characteristics. Principles of surge protection: lighting arrestors. Arching rings; arrangement of protection devices, selection of arresters, rating and coordination with apparatus insulation.L.V. protection equipment and systems including methods of motor overload and short circuit protection. Special protection measures in the design of power electronic interface equipment. Protection of building electrical services. Use of MCBS and fuses, extended to protection of appliances. Advances towards computer based monitoring and protection of industrial and utility protection systems.

Credits
3
Level
Year Four

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Course details from Details of Syllabus - Department of Electrical Engineering, KNUST.