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Harmonic Study and Analysis

CareLabs offers electrical installation services such as electrical safety inspections, testing, calibration, and certification, in addition to a comprehensive examination and analysis of harmonics. 

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Professionals will analyze harmonic dangers, training programs, paperwork, and personal protective equipment (PPE) to verify that your electrical safety program is up-to-date, compliant, and exhaustive. To ensure the safety of the equipment, CareLabs is able to detect harmonics early on and take the necessary precautions to reduce their influence. Harmonic electric voltages and currents can generate inefficiencies in an electrical system. They produce inefficient heat and can decrease the quality of electricity. Harmonic voltage analysis is a mathematical technique used to forecast resonances and harmonic distortion levels. Harmonic voltage analysis is a mathematical technique for forecasting potential resonances and harmonic distortion levels based on empirical evidence. 

Incorporating harmonic frequencies into the electrical system are nonlinear electrical switching devices such as AC variable frequency drives, DC drives, fluorescent lights, and computers. High harmonic voltage/current levels provide a significant danger of equipment failure. Consequently, a timely harmonic analysis and investigation is essential. Currently, the harmonic limitations for 415-volt systems are 5%, with 4% odd harmonics and 2% even harmonics. 

Effects of Harmonic Distortion:

  • Responsible for high voltage and circulating current.
  • Equipment failure and destruction because of severe voltage distortion
  • A rise in the internal energy of components, which leads to component failure and a shortened lifespan.
  • Fault-induced tripping of branch circuit breakers
  • Measurement flaw
  • Electrical and distribution system fires and explosions
  • Generator failures
  • A reduction in system power factor
  • Installation and utility costs are costly
  • Productivity reductions
  • Inactivity and needless driving
  • Utilization of bigger motors

Harmonic issues are exceedingly rare, but when they do arise, they tend to decrease the power system’s dependability, power quality, and efficiency. Consequently, harmonic investigation and analysis are important. 

  • Protects against current and voltage harmonics
  • Limitation of frequency variance
  • Unbalanced current and voltage
  • Enhance power factor analysis and maintain a value close to one.
  • Regulates voltage fluctuations

By shedding light on the likely cause and effects of power quality problems, harmonic research and analysis will help designers avoid harmonic-related challenges and reduce the possibility of unintended consequences.

Harmonic Study and Analysis Workflow at CareLabs:

  • Highlight available nonlinear loads, capacitor banks, and lengthy medium-voltage cables on the electrical single-line diagram.
  • Determine the common coupling point (PCC)
  • Identify system buses inside the facility that are sensitive to harmonic distortions.
  • Gather harmonics information for all nonlinear loads.
  • Obtain vital information on voltage and current harmonics at the selected PCC, including the maximum and lowest short circuit fault levels.
  • Conduct a harmonic analysis of the electrical network using ETAP (Electrical Transient Analysis Program).
  • Determine the overall and individual current and voltage wave distortion values at the buses and PCC.
  • Draw the spectrum of harmonic frequencies.
  • If harmonic distortion levels surpass acceptable thresholds, a suitable mitigation strategy is offered and implemented.
  • After implementing the mitigation solution, rerun the analysis.

Harmonic Study and Analysis Workflow at CareLabs:

  • Highlight available nonlinear loads, capacitor banks, and lengthy medium-voltage cables on the electrical single-line diagram.
  • Determine the common coupling point (PCC)
  • Identify system buses inside the facility that are sensitive to harmonic distortions.
  • Gather harmonics information for all nonlinear loads.
  • Obtain vital information on voltage and current harmonics at the selected PCC, including the maximum and lowest short circuit fault levels.
  • Conduct a harmonic analysis of the electrical network using ETAP (Electrical Transient Analysis Program).
  • Determine the overall and individual current and voltage wave distortion values at the buses and PCC.
  • Draw the spectrum of harmonic frequencies.
  • If harmonic distortion levels surpass acceptable thresholds, a suitable mitigation strategy is offered and implemented.
  • After implementing the mitigation solution, rerun the analysis.

CareLabs Service Benefits:

If background harmonics have previously been measured, the second step consists of higher ratings. 

  • Stage 2 allows for changing converter size based on fault level and converter type if the backdrop is less than 25%.
  • If the backdrop is between 25% and 75%, half of the above converter grade is acceptable.
  • For the higher backdrop, a complete harmonic analysis is conducted.

CareLabs has crew members stationed in many places to ensure that our professionals are close by in case of a regular or urgent situation. CareLabs has swiftly established itself as an ISO 9001:2008-accredited company with a loyal clientele that has supplied outstanding feedback We do harmonic research and analysis in several major Brazilian towns, including São Paulo, Rio de Janeiro, Brasília, and Salvador Contact us immediately to schedule your harmonic analysis and study in Brazil or to receive a quotation! 

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