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Electrical Maintenance & Commissioning Capabilities

Operation, Maintenance, Daily Routine Checks of

  • Power transformers — running voltage & current

  • Power consumption, temperature, oil levels & leakages

  • DGA test, Tan-Delta, etc.

  • UPS system and lead-acid battery

  • HT & LT motors — winding & bearing temperature

  • Vibration checks, motor running voltage, current, leakage/sound findings & motor history card maintenance

  • Maintenance of VFD

Maintenance and Commissioning of

  • Switchgears up to 33 kV
  • Transformers, UPS & DC systems
  • Battery, earthing, and lightning systems
  • Area lighting, earthing & lightning protection for substations and buildings

Testing and Preventive Maintenance of

  • HT & LT feeders — rack-in/rack-out operation, coil resistance, contact resistance, functional checks of manual/on/off breakers, PT fuses, CT terminals & links, spring charge & indication checks, tightness & cleaning
  • Power transformers — insulation resistance, winding resistance, voltage ratio, winding & oil temperature indicator functional check, BDV, magnetic core balance test, tightness & cleaning
  • HT & LT motors and feeders — motor winding resistance, winding insulation resistance & polarization index, cable healthiness, DI/DO signal checks, resistance, body earths, control fuses, OLR setting, test trip of thermal overload, functional check of indication lamps, start/stop & run/trip status
  • Lighting systems — area, shelters, columns, platforms, building light systems
  • Cathodic protection systems & electrical heat tracing systems

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