Distribution Station & Feeder Protection

Fuses, Relays, Reclosers, Surge Protection Devices

This course covers utility distribution stations and feeder protection including fuses, new IED relays, and old school time overcurrent relays. Feeder relays and apparatus are examined including reclosers. Power transformer protection is reviewed including Current Mismatch Caused by Differing CT Ratios; Delta-Wye Transformation & Currents Shifts; Mismatch Induced by Load Tap-Changers; CT Saturation and Remanence and Inrush Phenomena and Harmonic Content problems.

What you’ll learn

  • Here we deal with the protection & control principles of distribution stations and feeders. Transformer Differential Protection is studied along overcurrent protection..
  • System Faults; station configuration & elements; Differential Protection; CT Saturation & Mal-operation of Transformer Protection; CT Saturation & Restraint Differential Protection; Fuses; The Modern IED Relays (Intelligent Electronic Device).

Course Content

  • Introduction –> 6 lectures • 3hr 52min.

Distribution Station & Feeder Protection

Requirements

  • A solid background in electrical circuitry..

This course covers utility distribution stations and feeder protection including fuses, new IED relays, and old school time overcurrent relays. Feeder relays and apparatus are examined including reclosers. Power transformer protection is reviewed including Current Mismatch Caused by Differing CT Ratios; Delta-Wye Transformation & Currents Shifts; Mismatch Induced by Load Tap-Changers; CT Saturation and Remanence and Inrush Phenomena and Harmonic Content problems.

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