RLA Services & Health Checkup

Condition assessment and RLA Test including site-inspection on various equipment used in power generation, transmission & distribution.

Engineers experienced in Maintenance Management with consistent record of reducing the Maintenance cost. Enhancing the Machine Availability with specialization in condition based Predictive Maintenance are there in team for executing the job.

On- Site tests for RLA & Condition assessment:

Power Transformers

  • Winding Resistance Measurement.
  • Voltage Ratio and Vector group confirmation test.
  • No-load excitation current measurement.
  • Insulation resistance measurement by IR Tester.
  • Capacitance & dissipation factor measurement of the main insulation and bushings.
  • Impedance measurements (short-circuit impedance).
  • Winding and core diagnosis with Sweep Frequency Response Analysis (SFRA).
  • Partial discharge measurements of power transformers.
  • Moisture analysis of paper insulation by dielectric method, Bushings, Potential Transformers and CVT’s.
  • Capacitance and dissipation factor measurement of the main insulation and bushings.
  • Moisture analysis of paper insulation by dielectric method, Surge Arrestors (LA).
  • Leakage current monitoring.
  • Capacitance and dissipation factor measurement of the inner insulation on per stack basis.
  • OLTC test.

Current Transformers

  • CT winding resistance measurement.
  • CT excitation characteristic according to IEC 60044-1 and IEEE C57.13 for knee-point
    voltages.
  • Insulation resistance measurement by IR Tester.
  • CT ratio measurement, phase and polarity measurement.
  • Determination of accuracy limiting factor, instrument security factor, Test of CTs
    for knee point voltages.
  • Capacitance & dissipation factor measurement of the main insulation and bushings.
  • Partial discharge measurements of CTs.
  • Moisture analysis of paper insulation by dielectric method.

Bushings, Potential Transformers and CVTs

  • Capacitance & dissipation factor measurement of the main insulation and bushings.
  • Moisture analysis of paper insulation by dielectric method.
  • Insulation resistance measurement by IR Tester.

Surge Arrestors (LA)

  • Leakage current monitoring.
  • Insulation resistance measurement by IR Tester.
  • Capacitance & dissipation factor measurement of the inner insulation on per stack
    basis.
  • OLTC test.

Power Cable

  • Capacitance & dissipation factor measurement of the inner insulation.
  • Insulation resistance measurement by IR Tester.
  • Partial discharge measurements.
  • Oil test in case of oil filled cable.
  • Resistance measurement of cable.
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