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OPTIMIZING DISTRIBUTION FEEDER PROTECTION TO IMPROVE POWER QUALITY DURING SHORT CIRCUIT FAULTS

OPTIMIZING DISTRIBUTION FEEDER PROTECTION TO IMPROVE POWER QUALITY DURING SHORT CIRCUIT FAULTS. Dr. Alexander Apostolov ALSTOM T&D EAI Los Angeles, CA, USA. High-speed communications. Distributed protection functions Based on IEC 61850 GOOSE messages Examples: Breaker Failure Protection

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OPTIMIZING DISTRIBUTION FEEDER PROTECTION TO IMPROVE POWER QUALITY DURING SHORT CIRCUIT FAULTS

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  1. OPTIMIZING DISTRIBUTIONFEEDER PROTECTION TO IMPROVE POWER QUALITY DURING SHORT CIRCUIT FAULTS Dr. Alexander Apostolov ALSTOM T&D EAI Los Angeles, CA, USA

  2. High-speed communications • Distributed protection functions • Based on IEC 61850 GOOSE messages • Examples: • Breaker Failure Protection • Distribution Bus Protection • Selective Backup Tripping

  3. Bus Protection (Bus Fault) GOOSE RevFlt Bus(CIED) Protection PIED PIED RevFlt RevFlt PIED PIED PIED RevFlt RevFlt Distributed protection

  4. Verification of system models • Recording allows verification of system models • Waveform - EMTP simulations and testing • Disturbance - dynamic stability or power quality event simulations • Effects of changing system impedance - sub-transient, transient, steady-state

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