Testing and Diagnostic Measurements on Power Transformers

  • Turns Ratio Test
  • Magnetizing Current Measurement
  • Static and Dynamic Winding Resistance Measurement
  • OLTC Diagnosis
  • Dielectric Response Measurement of the Main Insulation and of Bushings
  • Frequency Response Analysis
  • Capacitance and Dielectric Dissipation Factor Measurement of the Main Insulation and of Bushings
  • Partial Discharge Measurement
  • Partial Discharge Localization

Analysis of Measurement Results

Transformer Condition Assessment

Download
Krueger, M.: "On-Site Diagnosis of Power Transformers"
Krueger_On_Site_Diagnosis_of_TR_TechCon_
Adobe Acrobat Document 1.5 MB
Download
Krueger, M., Engelen, C.: "Diagnostic Testing of Cast-Resin Transformers
Krueger_Engelen_Diagnostic_Testing_of_Ca
Adobe Acrobat Document 1.1 MB
Download
Krueger, M.: "Transformer Health Assessment"
KRUEGER_Transformer_Health_Assessment_Pr
Adobe Acrobat Document 7.9 MB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C-TanDelta Measurement on a 220 kV Transformer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Condition Assessment of a 220 kV Transformer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Partial Discharge Calibration on a 220 kV Transformer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C-TanDelta Measurement on a 400 kV Transformer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Partial Discharge Measurement on a 20 kV Transformer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Partial Discharge Measurement on 20 kV Cast Resin Transformer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Partial Discharge Measurement on a 220 kV Transformer 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Partial Discharge Measurement on a 30 kV /17 MVA

Cast Resin Transformer