PROTECTIVE COORDIATION By Mohamad Arifin Moh.arifin85@gmail.com PROTECTIVE COORDIANTION Objectives of Protective Coordination: 1. Personnel safety 2. Equipment safety PROTECTIVE COORDIANTION Objectives of Protective Coordination: 3. Service continuity and selective fault isolation Faults should be quickly detected and cleared with a minimum disruption of service. Protective devices perform this function and must be adequately specified and coordinated. PROTECTIVE COORDIANTION Log – Log Plot PROTECTIVE COORDIANTION Plotting Curve PROTECTIVE COORDIANTION Plotting Curve PROTECTIVE COORDIANTION Plotting Curve PROTECTIVE COORDIANTION Protection Device and Characteristic Curve 1. Electromechanical Relays (EM) PROTECTIVE COORDIANTION Protection Device and Characteristic Curve 2. Solid-State Relays (SS) PROTECTIVE COORDIANTION Protection Device and Characteristic Curve 3. Microprocessor-Based Relays PROTECTIVE COORDIANTION Protection Device and Characteristic Curve 4. Power CBs PROTECTIVE COORDIANTION Protection Device and Characteristic Curve 5. Insulated & Molded Case CB PROTECTIVE COORDIANTION Protection Device and Characteristic Curve 6. Power Fuses PROTECTIVE COORDIANTION Transformer Over Current Protection PROTECTIVE COORDIANTION Transformer Over Current Protection PROTECTIVE COORDIANTION Transformer Over Current Protection PROTECTIVE COORDIANTION Transformer Over Current Protection PROTECTIVE COORDIANTION Motor Over Current Protection PROTECTIVE COORDIANTION Motor Over Current Protection PROTECTIVE COORDIANTION Motor Over Current Protection
