Selectivity Studies HV Networks

Selectivity Studies HV Networks

The objectives of this training are:

  1. Learn a rigorous methodology to define an HV protection plan
  2. Identify electrical protection for HV networks
  3. Calculate the value of short circuit currents
  4. Identify the key thresholds of protection relays

The program of this training is the following:


  • > Standard IEC 60-909
  • > Presentation of industrial networks
  • > Presentation of the different architectures

Earthing Scheme

  • > Advantages and disadvantages of each earthing scheme
  • > Operating constraints (Overvoltage)
  • > Values of fault currents
  • > Limiting resistor

Faults definition

  • > List of common faults
  • > Calculation of short circuit currents
  • > Definition of the protection plan
  • > Présentation of the softwares of the market
  • > Faults analysis

Tripping and curves

  • > Identify the different tripping curves
  • > Set thresholds of the phase protection

Duration: 5 days

2015 Date: from march 16th to 20th


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