Omicron CT Analyser

Analyze your current transformer (CT) with the push of a button

How CT Analyzer works

• Injects low test signals into secondary side of the CT
• Determines the CT‘s equivalent circuit parameters
• Identifies all relevant CT performance parameters
• Displays all relevant parameters of the CT and its accuracy at different currents and burdens
• Evaluates the CT according to the selected standard
• Determines unknown CT nameplate parameters
• Demagnetizes the CT after the test.

Range of measurements

• Ratio and phase accuracy
• Winding resistance
• Excitation characteristics (knee points)
• Composite error (ALF, ALFi, FS, FSi, Vb)
• Burden impedance
• Transient CT classes and parameters (TPS, TPX, TPY and TPZ type CTs)
• Transient dimensioning factor (Ktd)
• If missing/unknown: CT type, class, ratio, knee point, power factor, nominal burden, operating burden, primary and secondary winding resistance
• Remanence and residual magnetism
• Immediate good/bad evaluation

Additional features:

• Simulate different burdens and currents
• Analyze the effect of CT saturation
• Measure VT ratio
• Multimeter

Key features

• Highest measurement accuracy: 0.02 % / 1 min when calibrating on site
• Very small and lightweight (< 8 kg / 17.4 lbs), easy to transport for on-site testing
• Automatic evaluation according to IEC, IEEE and to customized or local/national standards
• Short commissioning times (duration of the automatic test < 1min)
• Excellent workplace safety - Tests run at max. 120 V
• Integration into testing routines using Remote Interface Control

Data Sheets