Harmonic Study and Analysis

CareLabs provides electrical installation services such as electrical safety inspections, testing, calibration, and certification, as well as a full harmonic investigation and analysis. Professionals will examine harmonic hazards, training programs, documentation, and personal protective equipment (PPE) to ensure that your electrical safety program is current, compliant, and comprehensive.

CareLabs can discover harmonics early on and take the required actions to decrease their effect, ensuring the safety of the equipment. In an electrical system, harmonic electric voltages and currents can cause inefficiencies. They generate inefficient heat and can degrade electrical quality. Harmonic voltage analysis is a mathematical approach for predicting potential resonances and harmonic distortion levels. Harmonic voltage analysis is a mathematical approach that uses empirical evidence to anticipate probable resonances and harmonic distortion levels.

Nonlinear electrical switching equipment such as AC variable frequency motors, DC drives, fluorescent lights, and computers include harmonic frequencies into the electrical system. High harmonic voltage/current levels pose a serious risk of equipment failure. As a result, a timely harmonic analysis and study is critical. Harmonic restrictions for 415-volt systems are now 5%, with 4% odd harmonics and 2% even harmonics.

Harmonic Distortion Effects:

In charge of high voltage and circulating current.
Failure and destruction of equipment as a result of significant voltage distortion
An increase in component internal energy, resulting in component failure and a decreased lifespan.
Branch circuit breaker tripping due to a fault
Error in measurement
Explosions and fires in electrical and distribution systems
Generator breakdowns
A decrease in system power factor
The installation and utility expenditures are high.
Productivity declines
Inactivity and unnecessary driving
The use of larger motors

Harmonic difficulties are extremely infrequent, but when they do occur, they tend to reduce the reliability, power quality, and efficiency of the power system. As a result, harmonic study and analysis are critical. It safeguards against current and voltage harmonics. Frequency variance limitation

Current and voltage imbalances
Improve power factor analysis and keep the value near to one.
Voltage fluctuations are regulated.

Harmonic research and analysis will provide insight into the source and effect of power quality issues, assisting in the avoidance of harmonic-related concerns during the design phase and reducing the risk of unexpected consequences.

Workflow for Harmonic Study and Analysis in CareLabs:

On the electrical single-line diagram, highlight available nonlinear loads, capacitor banks, and long medium-voltage cables.
Find the common connection point (PCC (Point of Common Coupling))
Determine which system buses inside the facility are susceptible to harmonic distortions.
Collect harmonics data for all nonlinear loads.
Obtain critical information about voltage and current harmonics at the chosen PCC, such as the maximum and minimum short circuit fault levels and Australia’s permissible harmonic values.
Using ETAP (Electrical Transient Analysis Program), do a harmonic analysis of the electrical network.
Calculate the total and individual values of current and voltage wave distortion at the buses and PCC. Create a harmonic frequency spectrum.
When harmonic distortion levels exceed permissible limits, an appropriate mitigation approach is proposed and implemented.
Rerun the analysis after installing the mitigation solution.

CareLabs Service Advantages:

If background harmonics have been measured before, the second stage consists of higher ratings.

If the background is less than 25%, Stage 2 allows for adjusting converter size based on fault level and converter type.
Half of the upper converter grade is allowed if the background is between 25% and 75%.
A comprehensive harmonic analysis is performed for the upper background.

CareLabs has crew members stationed around the country to guarantee that our specialists are nearby in the event of a routine or emergency crisis. CareLabs has quickly established itself as an ISO 9001:2008-accredited firm with a dedicated customer base that has provided excellent feedback. We do harmonic research and analysis in Helsinki, Vantaa, Espoo, and Tampere, among other significant Finland cities. Please contact us right away to organize your harmonic analysis and study in Finnish or to obtain a quote!