Harmonic Analysis in Power System in Spain

Power is a crucial part of daily life in the modern world. Most objects we use every day are powered in some way. We must make use of the most innovative power technology available to offer electricity to people in a safe and affordable manner. Harmonics raise the circuit’s current flow’s RMS value, which raises the loss. The electrical systems have been plagued by a number of issues as a result. Harmonics have an impact on the loads as well as the entire distribution system. Additionally, delicate office and production machinery and equipment might be harmed by harmonics. Harmonic faults cannot always be obvious right away, and it might be challenging to tell them apart from everyday wear and tear.  

Harmonic Distortion Definition

Harmonic problems may reduce the reliability of the power supply due to its tiny size. Electric current and voltage harmonics cause problems in power systems. Equipment may malfunction or fail when the power source contains numerous harmonics. Harmonics, or changes in the shape of the current waveform, are typically introduced into an electrical system by a nonlinear load. Nonlinear loads and harmonics are produced in power systems (UPS) by personal computers, driven motors, fax machines, laser printers, switch-mode power supplies (SMPS), batteries, and uninterruptible power supplies.  

H2: What Justifies the Need for Harmonic Analysis?

Electrical systems become less reliable and efficient as a result of harmonics. Your power system’s dependability will improve if you apply harmonic analysis to find harmonics there. Non-linear currents are created when power electronics equipment usage grows. The demands of the system led to the generation of harmonics. Equipment has to be more energy efficient and use less electricity.  

When Did Harmonic Analysis Become Important?

  • The harmonic limits need to be examined if the total load or bus system readings are greater than 25% of the total load.
  • To fix harmonic-related problems, such equipment failure or damage.
  • When and how many non-linear loads will the plant be expanded?
  • When an additional capacitor bank is introduced to the electrical systems, harmonic analysis is required.
THE STRUCTURE OF THE EQUIPMENT
A Harmonic Result
Equipment that rotates
In addition to power loss, overheating, and pulsing torque, cable resistance increases.
A switchboard, a transformer, and power cables.
Overheating, excessive use, overloading the neutral, and power outages are indications that there is a problem.
Electric capacitors
Many current events are unintentionally happening.
Electrical power
Inadequate performance
Safeguarding relays
Bad habits and challenging travels

A sinusoidal waveform encounters a nonlinear load, causing distortion and harmonic generation in the system. The existence or absence of harmonics in a system is frequently detected through harmonic analysis.  

Benefits of Cutting Harmonics Out of the Power System:

  • By minimizing the amount of energy wasted through cables, switch gears, and safety systems, harmonic analysis lowers operational expenses. It also aids in lowering power system losses.
  • It permits the removal of large transformers, which lowers the need for cable, switchgear, and busbars by lowering the RMS current in the electrical system.
  • Performance naturally increases when losses are reduced and the RMS current value is lowered. Harmonics cause overheating of cables, transformers, motors, and capacitors in addition to increasing losses and raising the RMS value of current. The undesirable outcomes may force you to terminate a surgery or cause you to lose money.

Procedure for Conducting a Power Quality Analysis:

  • Make a single-line graph to display non-linear loads.
  • Watch for the point of common connection (PCC).
  • The buses inside the building that could be impacted by harmonics should be brought to light.
  • Gather as much data as you can on the electricity provider’s historical harmonics performance and non-linear load characteristics.
  • Using the electrical system’s performance data and the ETAP (Electrical Transient Analysis Program) software, create a model.
  • Examine the harmonics, voltage, and current distortion levels.
  • Choose a cure if the harmonic distortion is too great.
  • After implementing the mitigation strategy, do another harmonic analysis to confirm CEC compliance.

CareLabs provides cutting-edge technology to its employees so they can guarantee the security of your electrical equipment and provide you with a safe working environment. Get a quotation now and find out more about CareLabs‘ harmonics research and analysis services. 

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