GIS current transformer tests through secondary injection

“You can count on our solutions because they’ve been developed with experience and passion . Due to our innovative approach, we’re setting groundbreaking standards in our industry sector.“

We invest more than 15 % of our total turnover in research and development so that we’re even able to guarantee the reliable use of the latest technology and methods in the future. With a comprehensive product care concept that includes things like free software updates, we can also guarantee that your investment will pay off in the long term.

“With only 8 kg, the CT Analyzer is the optimal device for diagnostic on-site tests on current transformers in gas-insulated switchgear.” 

Benefits of this solution

Current transformer identification

During CT tests on GIS, the CT Analyzer allows you to determine both the transformer type and condition and identify possible wiring faults. Any residual magnetism can be detected and reliably removed.

The CT Analyzer approach

Using the indirect test method, a voltage signal is injected into the secondary winding and the CT parameters are measured. Based on the results, the CT’s performance characteristics are calculated and assessed.

Assessment of CT Performance

All parameters of GIS current transformers (ratio, phase, excitation, resistance, ALF/FS) are determined within minutes. The CT assessment automatically delivers an immediate "good / bad" evaluation.

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