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Diagnostic Laboratory

Diagnostic Laboratory

Contact Details

Smt.Meena K P
Additional Director/HoD
Cables and Diagnostics Division
Phone: +91 (0) 80 22072333
Mobile: +91 9731551059
E-Mail : meena[at]cpri[dot]in / cddblr[at]cpri[dot]in

Major Product/Equipment tested with applicable standards

Major Product/Equipment tested with applicable standards:

  • Hydro/Turbo Generators as per IEEE 62.2 and IEEE 43
  • Motors IEEE 62.2 and IEEE 43
  • Power Transformers as per IEEE C57.152
  • Power Cables as per IEEE 400.1, IEEE 400.2, IEEE 400.3 and IEEE 400.4
  • Current Transformers
  • Capacitive Voltage Transformers
  • Potential Transformers
  • Lightning Arrestors IEC 60099-5
  • Thermal Cycle Testing and Evaluation of Stator Coils as per IEEE Std 1310-2012
  • Voltage Endurance Testing and Evaluation as per IEEE Std 1553-2002/ IEEE Std 1043-1996 

 

Major tests Carried Out

Major tests Carried Out:

  • Generator / Large Motors / Stator / Rotor

Insulation Resistance/Polarization Index Test, Capacitance and Tan Delta Measurement, Partial Discharge Measurement, Surge Comparison, Conductor Resistance Measurement, Electro Magnetic Core Imperfection Detection (ELCID) Test, Wedge Mapping Test, Recurrent Surge Oscillogram (RSO ) Test, Field Impedance Test, Pole Drop Test

  • Power Transformer

Insulation Resistance/Polarization Index Test, Capacitance and Tan Delta Measurement on Windings and Bushings, Recovery Voltage Measurement, Dielectric Spectroscopy, Sweep Frequency Response Analysis, Transformer Turns Ratio, Short Circuit Impedance, Magnetizing Current test, Magnetic balance Test, Winding Resistance Measurement, Core Insulation Resistance Test

  • Power Cables

Insulation Resistance/Polarization Index Test, Capacitance and Tan Delta Measurement, Very Low Frequency (VLF) Capacitance and Tan Delta Test, Partial Discharge Measurement by VLF and Damped AC Voltage

  • CTs/CVTs/PTs

Insulation Resistance/Polarization Index Test, Capacitance and Tan Delta Measurement

  • Lightning Arresters

On-line Third Harmonic Resistive Leakage measurement, Off-line DC Leakage Current Measurement

  • Stator Coils

Thermal Cycle Testing and Evaluation of Stator Coils and Voltage Endurance Testing and Evaluation

Range of the test

Range of the test ratings possible:

  • Tests on Hydro Generators upto 250 MW, 15.75 kV
  • Tests on Turbo Generators upto 250 MW, 15.75 kV
  • Tests on Motors upto 1.825 MW
  • Tests on Power Transformers upto 500 MVA, 765kV
  • Tests on Power Cables upto 66 kV
  • Tests on EHV CTs/CVTs upto 400 kV
  • Tests on Resin Cast CTs upto 33 kV
  • Tests on Resin Cast PTs upto 33 kV
  • Tests on Lightning Arrestors upto 400 kV
  • Tests on Stator Coils 250 MW, 15.75 kV
Photo Gallery
A View of Wedge Mapping test on Turbo Generator Stator in progress
A View of SFRA test on Transformer in progress
A View of ELCID test on Turbo Generator Stator in progress
A View of Transformer testing in progress
On-site Training Program
A View of Winding Resistance test on Transformer in progress
A view of short circuit impedance test on power transformer in progress
A view of RVM test on power transformer in progress
A view turns ratio measurement on power transformer in progress
A view of test on lightning arrestors in progress
A view of partial discharge test on cable in progress
A view of instrument transformer testing in progress
A View of Thermal Cycle Testing on Stator Coils in progress
A View of Voltage Endurance Testing on Stator Coils in progress
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