TESTING

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Power Transformer

  • Capacitance & Tan delta Measurement 
  • SFRA ( Sweep Frequency Response Analyzer) 
  • Advanced Three Phase Turns Ratio Measurement
  • Winding Resistance Measurement up to 50 A
  • Dielectric Frequency Response Analysis
  • Demagnetization
  • Short-Circuit Impedance / Leakage Reactance
  • Frequency Response of Stray Losses
  • OLTC Scan / Dynamic Resistance (DRM)
  • Vector Group Check
  • Cooldown Test
  • Power Losses at Low Voltages

Circuit Breakers

  • Dynamic Contact Resistance Measurement(DCRM)
  • Timing and Bounces of Main & PIR Contacts
  • Static Contact Resistance Measurement
  • Coil Resistance & Current Measurement
  • Mechanism Travel Measurement
  • SF6 Dew Point, Purity and SO2 Measurement
  • SF6 Gas Refilling
  • Breaker-function (Tripping & Closing)
  • Breaker-Overhauling
  • VCB/ACB Maintenance, Servicing and Health Assessment

Instrument Transformers

  • C & Tan Delta Measurement – Power/dissipation factor and capacitance measurements are performed to investigate the insulation of CTs.
  • Ratio and phase accuracy
  • Secondary Winding resistance measurement
  • Excitation characteristics (knee points)
  • Polarity Deflection
  • Burden impedance measurement
  • Secondary Injection Up to 500 Amp
  • Insulation Resistance measurement

Protection Panels

  • Design of Panels
  • Relay Testing with Three Phase and Single Phase Instrument ( Omicron)
  • Relay Co-Ordination With Software
  • Scheme and Bus Bar Checking
  • Logic Testing
  • TroubleShoot Fault and Solution

Battery Capacity Tests

  • Battery Constant Volteg
  • Battery Impedence
  • Battery Run - Down

Earthing Pit

  • Earth Resistance
  • Earth Voltage

Thermography

  • Thermal Imaging
  • Cold Imaging