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POWER QUALITY MANAGEMENT

The problems described below, reflects Poor Power Quality of Electrical System :
  • Medium Rating Transformers Overheated at low loads or even burning.
  • Motors tripping on low load, overheated or even burning.
  • Fuse switch overheated or flashing over.
  • PCB or Electronic card or component failure.
  • Lighting distribution system Neutral conductor burning out.
  • Power measurement errors.
  • Additional power losses.
  • High neutral to ground voltages, resulting in failure of power supply units.

Sources of Harmonics :

  • Transformer under no load & light loads
  • Saturated Reactors
  • Thyristor-controlled motor drives.
  • Arc furnaces
  • Arc Welders
  • Induction furnaces
  • Gas-discharge lighting
  • Rectifiers
  • Electrolysis plants
  • Energy conservation devices, e.g. Soft Starters, Electronic Ballast & Fan Regulators
  • Equipment with SMPS e.g. TV receivers, PCs
  • CVTs

Causes :

  • Presence of "Harmonics" in Voltage,Current & Power.
  • "Sags & "Swells" in Voltage output.
  • Inrush current.
  • Unbalance Distribution.

We support :

  • Measurement of Power Quality with Precision Power Quality Analyser.
  • Analysis of data collected by Power Quality Analyser.
  • Carry out Harmonic Filter Design using
  • ETAP (Electrical Transient Analyser Programme) &
  • ATP (Alternative Transient Programme)
  • Assist in Procurement and Commissioning of Harmonic filter equipment.

Capabilities of Power Quality Analyser : 

  • Harmonics (Voltage, Current & Power) from 1st to 51st & Total Harmonic distortion (THD)
  • K factor
  • C factor (Crest factor)
  • True RMS Values for Voltage & current
  • Recording of Voltage Sags & Swells
  • Recording of Watts, VA, VAR, PF, DPF, & Frequency
  • Recording of Inrush current of Transformer, Induction motor etc,from 1 sec to 5 minutes.
  • Recording of Transients in the electrical system due to switching (or) faults.
  • All other parameter recordings can be from 4 minutes to 16 days.

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Click for the Reference List of Power Quality management Projects

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