Looking at the fundamentals and develping an in-depth look at protection & control systems.

Upon completion participants will be familiar with:

  • System Faults
  • Switchyard Configuration & Elements
  • The DESN Station (Duel Element Spot Network)
  • HV Bus Differential Protection
  • CT Saturation & Mal-operation of Bus Protection
  • CT Saturation & Restraint Differential Protection
  • Westinghouse KD - 4 Relay
  • Surge Protective Devices
  • Fuses

  • DC Protection Logic
  • Differential Protection
  • The Modern IED Relays (Intelligent Electronic Device) Overview
  • HV Circuit Breaker Types (Oil, Vacuum, Air Blast, SF6)
  • HV Circuit Breaker Controls (Closing & Tripping)
  • HV Circuit Breakers - Reclose (Syncrocheck CUH 90 – VG Relay)
  • Dynamic Monitoring Equipment (DME)
  • Impedance Relaying (POTT)

Here we deal with the protection & control principles of high voltage stations. HV Bus Differential Protection is studied  along with restrictions due to CT saturation & mis-match and its solution, “Restraint Differential Protection”.


Starting with System Faults and how they affect  Switchyard Configuration & Elements simple “Differential Protection” is examined along with the mal-operation due to CT saturation and mis-match. 

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High Voltage Circuit Breakers are examined as to the various Types (Oil, Vacuum, Air Blast, SF6), their Controls (Closing/Tripping/anti-pumping) Reclosure Syncrocheck relay CUH 90 – VG as well as Breakers Failure Protection is part of this module along with a quick look at Dynamic Monitoring Equipment. Transfer & remote tripping along with the need to provide immunity from ground rise potential and open circuit situations.

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This course can be delivered in two ways:

1) In-person with live instructor. This would take one day along with working examples. 

2) On-line video training which is available now.