Protection Relay Testing & Commissioning

This course covers the complete path of a testing and commissioning engineer, from zero to running a project independently. It focuses on hands-on practice with real test sets and relays, reading settings and documentation.

By the end of the course you will be able to

• Prepare a test plan for a protection relay
• Test functions 50/51, 50N/51N, 67, 87 and 21 by secondary injection
• Analyse IEC curves and acceptable tolerances
• Deliver a standard, auditable test report

Teaching method

Each session combines a short theory section, simulation and hands-on practice from a real project. Exercise files, report templates and checklists are provided to participants.

Audience & prerequisites

• Electrical engineers and technicians
• Basic knowledge of electrical and power-system fundamentals
• No prior relay-testing experience required

Course syllabus

• 1
  Power system protection fundamentalsFaults, short circuits and selectivity
  4 hours
• 2
  Relay basics and signalsDigital relay structure, CT/VT, inputs and outputs
  4 hours
• 3
  Overcurrent and earth-fault testingPickup, IEC curves, directionality
  6 hours
• 4
  Differential and distance testingSlope characteristic, harmonics, distance zones
  6 hours
• 5
  Test reportingReport format, acceptance criteria and documentation
  4 hours