Carelabz Czech Republic

Harmonic Study & Analysis

In addition to thorough study and analysis of harmonics, CareLabs provides electrical installation services such electrical safety inspections, testing, calibration, and certification. 

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To confirm that your electrical safety program is up-to-date, compliant, and comprehensive, experts will evaluate harmonic hazards, training programs, paperwork, and personal protective equipment (PPE). CareLabs has the ability to identify harmonics early on and take the appropriate actions to lessen their impact in order to ensure the equipment’s safety. Electrical systems may become ineffective if there are harmonic electric voltages and currents. They have the ability to reduce the quality of the electricity and create wasteful heat. 

Harmonic voltage analysis is a mathematical technique for identifying potential resonances and harmonic distortion levels.  Using empirical data, harmonic voltage analysis is a mathematical method for predicting potential resonances and harmonic distortion levels. Equipment that uses nonlinear electrical switching, such as AC variable frequency motors, DC drives, fluorescent lighting, and computers, introduces harmonic frequencies into the electrical system. A major risk of equipment failure is posed by high harmonic voltage/current levels. Therefore, doing a quick harmonic analysis and research is crucial. For 415-volt systems, the current harmonic constraints are 5%, with 4% odd harmonics and 2% even harmonics. 

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Harmonic Distortion's Causes:

  • High voltage and alternating current on a global scale.
  • Failure and devastation of equipment due to severe voltage distortion.
  • An increase in the amount of internal energy in components causes an increase in their fragility and a decrease in their longevity.
  • Failures that cause branch circuit breakers to discharge.
  • Error in measuring.
  • Explosions and flames in distribution and transmission systems.
  • Inoperative generators.
  • The decrease in the system’s power factor.
  • The installation and utility costs are costly.
  • Reduced efficiency.
  • There is no need for idle time or unnecessary travel.
  • Utilize bigger motors.

Harmonic problems are extremely uncommon, but when they do happen, the reliability, power quality, and efficiency of the power system are typically reduced. As a result, harmonic research and analysis are required. 

  • Protection from harmonics in current and voltage frequency fluctuation restriction
  • Unbalanced current and voltage
  • Improve power factor analysis and keep the value around one.
  • Controls the peak and trough voltages

Research and analysis on harmonics will help identify the probable cause and effects of power quality problems, minimizing harmonic-related design challenges and lowering the risk of unexpected consequences. 

Harmonic Analysis and Study CareLabs' workflow:

  • On the electrical single-line diagram, indicate any potential nonlinear loads, capacitor banks, and long medium-voltage cables.
  • The connecting point must be identified (PCC)
  • Identify the facility’s system buses that are most susceptible to harmonic distortions. For each nonlinear load, collect harmonics information.
  • Find vital details about the voltage and current harmonics at the chosen PCC, including the highest and lowest levels of short circuit faults as well as the highest harmonic values permitted in Czech Republic.
  • Use ETAP (Electrical Transient Analysis Program) to examine the electrical network’s harmonics.
  • Determine the buses’ and PCC’s individual and collective current and voltage wave distortion values.
  • Make a visual representation of the harmonic frequency spectrum.
  • If harmonic distortion levels are too high, an appropriate mitigation method is offered and put into practice.
  • Rerun the research after putting the mitigation plan into action.
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Benefits of CareLabs Service:

The second step applies higher ratings if background harmonics have previously been measured.

  • Stage 2 enables altering the converter size depending on the fault level and converter type if the backdrop is less than 25%.
  • If the backdrop takes up between 25% and 75% of the image, the lower half of the previously mentioned converter grade is appropriate.
  • The top background is given a detailed harmonic analysis.

To guarantee that our professionals are accessible in the event of a routine or urgent emergency, CareLabs has people stationed in many locations. CareLabs has quickly established itself as an ISO 9001:2008-accredited business with devoted customers who have provided excellent feedback. In several important Czech cities, such as Prague, Brno, Ostrava, and Plzeň, we do harmonic research and analysis. Contact us right now to arrange your harmonic analysis and study in Czech or to get a quote! 

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