Omicron CT Analyser

Current transformer testing, calibration and assessment

The Omicron CT Analyser automatically determines all relevant current transformer values and compares the results with the selected standard. The device evaluates the current transformer as per the IEC or IEEE standard within seconds with the push of a button.

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

How CT Analyser 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
Demagnetses the CT after the test.

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

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
Analyse the effect of CT saturation
Measure VT ratio
Multimeter