Why Are Harmonic Analysis and Research Crucial for Portuguese Businesses?

Harmonics is an essential component of a power system since it influences the quality of the energy and how things operate. High harmonic levels can cause equipment components to overheat and decrease their service life. Harmonics modify pure sine waves generated by a perfect power source.  Harmonic distortion impairs an organization’s capacity to produce goods and conduct business. Here are a few examples of how harmonic distortion affects business. 

  • Components lose more energy due to harmonics (Joule effect).
  • When there are harmonics, the subscription quantity of power increases. As a result, expenses rise, indicating that client services become more expensive.
  • Inadequate power supply enables the use of oversized machines.
  • When the degree of distortion surpasses 10 percent, the lifespan of various components is reduced, which leads to a decline in productivity.
  • Harmonics produce peak currents that cause obsolete technology to trip, resulting in output losses and a significant cost to restore system operation.

Harmonics Results In:

Loads that do not follow a straight line and draw current in short, rapid bursts generate harmonics. These pulses cause harmonic currents to flow throughout the power system as distorted current waves. Harmonics reduce the dependability and efficiency of commercial power. Most businesses have electrical systems that can tolerate up to 15% nonlinear loads safely. 

If nonlinear loads account for more than 15 percent of the total load, they may result in harmful harmonic distortions. Therefore, it is vital to monitor harmonic levels to ensure they do not get excessively increased. Consequently, a comprehensive investigation and analysis can assist in keeping track of potential threats and their origins. This can assist in the avoidance of harmonic-related issues during the design process and reduce the likelihood of unfavorable results. 

Harmonic Analysis Procedure:

Even if harmonic issues are rare, a prompt examination must be performed to ensure that they are not serious. Following are the steps for determining the harmonic level: 

  • Initially, create a one-line diagram of the electrical system and identify any nonlinear loads.
  • The graphic focuses mostly on establishing the shared connection (PCC).
  • There is a concentration of system bus plants with distortions.
  • All harmonics-related information has been received.
  • Retrieve the specified PCC values of the utility. This contains the maximum and minimum short circuit fault levels, together with the permissible current and voltage harmonics.
  • Utilizing free software to simulate a harmonic analysis.
  • Perform a harmonic analysis on the electricity of the system.
  • Calculate the total and discrete current and voltage distortions at the buses and PCC.
  • Create a spectrum of frequency harmonics.
  • Select the appropriate harmonic control techniques. Harmonic distortion levels above allowable limits.
  • Repeat the harmonic analysis following the implementation of mitigating measures.

CareLabs is a recognized organization that researches and analyses harmonics. Professionals with extensive knowledge can conduct exact and secure evaluations to identify problematic harmonic levels and assist with maintaining appropriate harmonic levels to prevent future difficulties. 

The Advantages of CareLabs Service:

  • More secure electrical systems that comply with regulatory criteria and rules
  • Increasing productivity saves time and money.
  • Enhance worker safety.
  • Provide rapid options in an emergency.
  • Increase the margins of safety.
  • Create work permits and arc flash labels automatically to save time.
  • Avoid potential fines and legal costs.

CareLabs employs personnel in many locations to ensure that our professionals are nearby in the event of an emergency or for normal tasks. CareLabs immediately attained ISO 9001:2008 certification and built a clientele with a solid reputation and positive comments. In large cities such as Lisbon, Porto, Vila Nova de Gaia, and Braga, CareLabs provides investigation and analysis services. 

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