Testing and Diagnostic Measurements on Instrument Transformers

  • Current Transformer:

Ratio Error

Phase Error

Knee Point Voltage

Burden Impedance

Measurement of the Dielectric Dissipation Factor

Measurement of the Dielectric Response 

Partial Discharge Measurement

  • Voltage Transformer:

Ratio Error

Phase Error

Burden Impedance

Measurement of the Dielectric Dissipation Factor 

Measurement of the Dielectric Response

Partial Discharge Measurement

 

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Krueger, M.: "Einfluss der Stromwandlerkernsättigung auf das Übertragungsverhalten bei großen Strömen"
Stromwandlerkernsaettigung bei grossen S
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Krueger, M.: "Diagnostic Measurements on Instrument Transformers"
KRUEGER_Diagnosic_Measurements_on_IT.pdf
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Freiburg, M., Predl, F., Krueger, M., Jenau, F.: " A New Approach for In-situ Calibration of Voltage Transformers"
CMD2014_Freiburg_final.pdf
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Freiburg, M., Sperling, E., Krueger, M.: "ACCURACY OF VOLTAGE TRANSFORMERS – DESIGN CRITERIA AND A SURVEY ON THE PRECISION AND REPRODUCIBILITY OF A NEW MODEL-BASED CALIBRATION APPROACH
CIRED2015_1295_final.pdf
Adobe Acrobat Document 797.5 KB
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Hong, S., Predl, F., Freiburg, M., Krueger, M.: "On-site Calibration of Voltage Transformers"
OB3-04.pdf
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Raetzke, S., Koch, M., Krueger, M.: "NEW APPROACH TO ASSESS THE INSULATION CONDITION OF INSTRUMENT TRANSFORMERS"
New-Approach-Assess-Insulation-Condition
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Partial Discharge Measurement on a 220 kV 

Combined Voltage / Current Transformer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Partial Discharge Measurement on a 123 kV 

Combined Voltage / Current Transformer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Partial Discharge Measurement on a

Cast Resin Voltage Transformer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dielectric Response Measurement with

OMICRON Dirana on a 123 kV Combined VT / CT