Electrical Testing Services

We are providing services for Electrical Testing of Plants assets are

  • Transformers
  • Generators (Turbo, Hydel and Diesel)
  • Motors ( LV, MV, HV)
  • Switch Yard
  • Switchgears ( MV, LV Breakers, Protection Relays)
  • Power Cables
  • Power System Study

Transformer

  • Insulation Resistance
  • Dissipation/Power Factor Measurement Winding/Bushing
  • Winding/Dynamic Resistance ( OLTC/DETC)
  • Transformer Turn Ratio/ Vector Group
  • Dielectric response analysis
  • Excitation Current
  • Short Circuit Impedance/ Leakage Reactance
  • Demagnetization
  • Dehydration
  • Partial Discharge Measurement
  • Oil Testing (DGA, Quality Testing, Furan Testing, Corrosive Sulfur etc. )
  • Cleaning/Painting/Installation

Protection Testing

  • Generator Protection
  • Transformer Protection
  • Transmission Line Protection
  • Bus Protection
  • Network Protection
  • Distribution Feeder Protection
  • Motor Protection

Current Transformers

  • Ratio, burden and polarity
  • Phase and magnitude error
  • Excitation curve
  • Winding resistance
  • Secondary burden
  • CT circuit continuity
  • AC/DC Withstand Testing

Voltage transformers (VT)

  • Ratio, burden and polarity
  • Phase and magnitude error
  • Excitation curve
  • Winding resistance
  • Secondary burden
  • VT circuit continuity
  • AC/DC Withstand Testing

Circuit Breakers (MV/HV/GIS)

  • Timing tests
  • Contact Resistance
  • Under voltage condition test
  • Minimum pick-up test
  • % SF6
  • Dew-Point Temperature
  • SF6 By Products
  • SF6 Leak Detection
  • Cleaning/Greasing/Overhauling

Switch Yard Maintenance

  • Cleaning of HV equipment
  • Tightening of Loose Connections after thermography
  • Replacement of Equipment
  • Earth Integrity Check
  • Earth Resistance Check

Rotary Equipment

  • IR/PI
  • Tan ∂/ Capacitance Tip up/Tan ∂ Tip up
  • RSO
  • Partial Discharge Measurement
  • Bore scope/ Physical Inspection
  • Core Testing/ Wedge Tightness
  • Online Analysis of Motor (GE AnomAlert for Motors online condition assessment)
  • Vibration Monitoring

Battery Capacity Testing

  • Battery Load Discharge Test

Commissioning Services

  • HV & LV Switchboards
  • HV Switchyards
  • Secondary Injection of Protection Relays
  • Calibration of Transducers
  • Primary Injection of Current Transformers
  • Insulation Resistance Tests
  • Earth Testing
  • Contact Resistance

Testing of High Voltage Equipment

  • Transformer Winding Resistance Testing
  • Cable and Cable Fault Locating
  • Automatic Voltage Regulator Tests
  • Polarization Index Tests
  • Partial Discharge and Corona Detection & Fault Finding
  • Power Transformer Testing
  • Circuit Breakers
  • Power Generators