Power distribution system

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Presentation transcript:

Power distribution system Lecture 09 Power distribution system

City distribution substation

12/20(24) kV CV (CE optional)*/IEC 60502-2 (1/CORE) 1.Conductor : Compact round stranded annealed copper wires 2. Conductor screen : Semi-conductive Cross-linked polyethylene (XLPE) compound 3. Insulation : Cross-linked polyethylene (XLPE) 4. Insulation screen : Semi-conductive Cross-linked polyethylene (XLPE) compound 5. Metallic screen : Copper wires and copper contact tape 6. Binding tape : Polyester / Spunbond tape 7. Sheath : Polyvinyl chloride (PVC), ( Optional : PE )*

81 Over /Under frequency 32 Directional Over/Underpower Relay 37--undercurrent or underpower relay

Overcurrent Protection

Determination of a Fault on an Ungrounded System