Power Quality

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Power Quality

Power systems often face issues like harmonics, transients, flicker, and inrush currents, which can disrupt operations, reduce efficiency, and damage equipment. ENRG TECH provides Power Quality Services to assess and resolve these issues, optimizing system performance and minimizing operational costs.

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Power Quality Parameters and Services Provided

  • Harmonics: Distortions in the voltage or current waveform caused by non-linear loads such as computers, LED lights, and variable-speed drives.
  • Interharmonics: Frequency components that appear between integer harmonic multiples of the system's frequency, affecting equipment stability.
  • Transients: Voltage spikes or dips caused by switching operations, lightning, or faults, potentially damaging sensitive equipment.
  • Inrush Current: The initial surge of current when electrical equipment like motors and transformers is powered on, leading to voltage fluctuations and equipment stress.
  • Flicker: Fluctuations in light intensity caused by voltage variations, typically from large industrial loads starting and stopping.
  • Voltage Sag (Brownout): A temporary reduction in voltage (typically less than 90% of nominal) caused by short circuits or large load increases.
  • Voltage Swell: Temporary increases in voltage (typically above 110% of nominal) caused by load reductions or system faults.
  • K-factor (KF): Measures the harmonic load on transformers and other equipment, assessing the potential for overheating due to harmonic distortion.
  • Power Factor (PF): Measures how effectively electrical power is being used. A high PF indicates efficient energy consumption, while a low PF can lead to excessive losses and inefficiency.
  • Displacement Power Factor (DPF): The phase difference between voltage and current waveforms, indicating how efficiently the real power is being utilized. Affected by inductive loads such as motors.
  • Unbalance: Occurs when voltages or currents in a three-phase system are not equal, leading to inefficiency and potential overheating of machinery.
  • Total Harmonic Distortion (THD): Quantifies the harmonic distortion in the voltage or current waveform, helping assess equipment stress and system efficiency.
  • Frequency Deviation: Measures frequency fluctuations from the nominal power frequency (50Hz/60Hz), which can impact the operation and synchronization of sensitive equipment.
  • Voltage Imbalance: A condition where voltage levels in a three-phase system are unequal, leading to overheating of motors and machinery, reducing equipment lifespan.
  • Total Demand Distortion (TDD): Measures harmonic distortion in current relative to the maximum demand current, identifying potential damage to transformers and electrical equipment.
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