Skip to content

Circuit Breaker Timing and Diagnostic Testing

A circuit breaker that opens a fraction too slowly can turn a routine fault into serious damage. This hands on programme covers the timing, contact and insulation tests that confirm a breaker will operate as designed. Delegates learn how to run tests safely, read results and decide when a breaker needs attention.

Ready to book? Secure your place on this programme.

Register for this course

What you will be able to do

  • Describe the operating principles of common medium and high voltage breakers.
  • Plan a safe test sequence with proper isolation and earthing.
  • Perform timing tests and interpret open, close and travel results.
  • Measure contact resistance and insulation condition accurately.
  • Identify signs of mechanism wear from test data.
  • Record findings and recommend maintenance or replacement actions.

Course outline

  1. 01Circuit breaker types and interrupting media
  2. 02Operating mechanisms and their wear points
  3. 03Isolation, earthing and test safety
  4. 04Timing test principles and instruments
  5. 05Reading travel and velocity curves
  6. 06Contact resistance measurement
  7. 07Insulation and dielectric checks
  8. 08Interpreting results against limits
  9. 09Reporting and maintenance decisions

Who should attend

Test technicians, switchgear maintenance staff, commissioning engineers and reliability personnel who service or verify circuit breakers.

Dates, venues and fees

DatesVenueDaysFeeCalendarRegister
28 to 29 Sep 2026Durban2R10,000Closed
29 to 30 Sep 2026Pretoria2R10,000Register
30 Sep to 1 Oct 2026Windhoek2US$1,100Register
1 to 2 Oct 2026Gaborone2US$1,100Register
5 to 6 Oct 2026Maseru2US$1,100Register
6 to 7 Oct 2026Mbabane2US$1,100Register
7 to 8 Oct 2026Lusaka2US$1,100Register
8 to 9 Oct 2026Harare2US$1,100Register
12 to 13 Oct 2026Lilongwe2US$1,100Register
13 to 14 Oct 2026Blantyre2US$1,100Register
14 to 15 Oct 2026Mozambique2US$1,100Register
15 to 16 Oct 2026Nairobi2US$1,100Register
19 to 20 Oct 2026Dar es Salaam2US$1,100Register
20 to 21 Oct 2026Kigali2US$1,100Register
21 to 22 Oct 2026Kampala2US$1,100Register
22 to 23 Oct 2026Accra2US$1,100Register
26 to 27 Oct 2026Lagos2US$1,100Register
27 to 28 Oct 2026Cairo2US$1,100Register
28 to 29 Oct 2026Mauritius2US$1,100Register
29 to 30 Oct 2026Dubai2US$1,100Register
2 to 3 Nov 2026Online2US$900Register
14 to 15 Dec 2026Johannesburg2R10,000Register
17 to 18 Dec 2026Cape Town2R10,000Register

Fees are per delegate. South African venues are priced in rand; other locations and online in US dollars. Fees exclude 15% VAT where applicable. Group bookings of three or more delegates from the same organisation qualify for a reduced rate; contact us for a quotation.

Related courses in Electrical and Instrumentation

Electrical and InstrumentationNew

Advanced Electrical Engineering for Industrial Plant

Senior engineers running large industrial and utility electrical systems need a deep grasp of power engineering beyond the basics.

Next session
5 to 9 Oct 2026
Venue
Johannesburg
5 day programme
FromR18,000
See all Electrical and Instrumentation courses