Time-optimized Current Transformer Diagnostics with CT Analyzer and RelaySimTest Webinar

Join this webinar to learn how to assess the performance of current transformers (CT) using the model-based testing approach with OMICRON CT Analyzer. Concept of CT saturation, residual magnetism and demagnetization will be introduced. You will also get familiar with RelaySimTest, a software which allows simulating the effect of residual magnetism of saturated CTs. Demonstration will be provided to facilitate your understanding.


Presenter: Peter Cheng
Date: October 6, 2021 (Wednesday)
Time: 01:30 pm – 05:00 pm, Hong Kong Time (GMT +8)



Introduction of CT testing (65 mins) 
  • Introduction of CT testing and theory of CT
  • Methods of model-based testing with CT Analyzer
  • IEC standards (IEC 60044-1, IEC 60044-6, IEC 61869-2)
Demonstration (45 mins)
  • Testing CT by using OMICRON CT Analyzer
  • Test report analysis
  • Practical example
System based testing CT saturation (30 mins)
  • CT saturation and residual magnetism
  • Consideration of CT saturation in OMICRON RelaySimTest
Demonstration (30 mins)
  • Simulate the effect of residual magnetism by using OMICRON RelaySimTest



  • Perform commissioning, troubleshooting and periodic tests of CTs
  • Fast, simple and safe current transformer testing according to the relevant international standards (IEC and IEEE)
  • Test and verify the fulfillment of the CT specifications as well as the class accuracy and CT ratio
  • Perform automated result assessment of CT with values defined in selected IEC standards
  • Generate automated test reports with CTA Suite
  • Consider the influence of CT saturation in a system-based test



Medium of instruction


Registration fee
Free of charge


Mode of delivery
This session will be delivered online by Cisco Webex Software. Upon successful registration, you will receive the meeting information by email and will be able to join this online session with your desktop computer, tablet or mobile phone.

Please feel free to email for enquiries.

*The event program is subject to change without prior notice.