Harmonic Study & Analysis
CareLabs offers a range of electrical installation services, including thorough harmonic research and analysis and electrical safety inspections, testing, calibration, and certification. To make sure your electrical safety program is up-to-date, compliant, and thorough, trained specialists will analyze harmonic risks, training programs, paperwork, and personal protective equipment (PPE).
To ensure the safety of the equipment, CareLabs can identify harmonics early on and take appropriate action to reduce their effects. Electrical systems can become inefficient due to harmonic electric voltages and currents. They produce heat inefficiently and might reduce the quality of the power. A mathematical technique for forecasting resonances and harmonic distortion levels based on data is harmonic voltage analysis. Equipment for nonlinear electrical switching, such as AC variable frequency drives, DC drives, fluorescent lights, computers, and so on, inject harmonic frequencies into the electrical system.
There is a substantial danger of equipment malfunctioning at high harmonic voltage/current levels. Timely harmonic research and analysis is therefore essential. Nowadays, there are 5% harmonic restrictions in 415 voltage systems, with 4% odd harmonics and 2% even harmonics.
Effects of Harmonic Distortion:
- Responsible for high voltages and circulating currents. Failure and Destruction of
- Devices Increased internal energy of
- Components due to strong voltage distortion leads to component failure and shortened life.
- False Trips of Miniature Circuit Breakers
- Measurement Errors
- Fires and Explosions in Electrical and Distribution Systems
- Generator Failures
- Low System Power Factor
- High Installation and Operation Costs
- Loss of Productivity
- Inactivity and Unnecessary Driving
- Use Larger Motors
Harmonic problems are rare, but when they do occur, they typically reduce power system reliability, power quality, and efficiency. Harmonic studies and analysis are therefore important.
- Safeguards against harmonics in voltage and current
- Frequency variation is restricted
- Voltage and current imbalances
- Enhance power factor analysis and maintain a value close to one.
- Controls voltage peaks and valleys
Harmonic Studies and Analysis provides insight into the possible causes and effects of power quality issues and helps avoid harmonics-related problems during the design phase. , to reduce the likelihood of unintended effects.
CareLabs Harmonics Research and Analysis Workflow:
- Highlight accessible nonlinear loads, capacitor banks, and lengthy medium voltage cables in the electrical one-line diagram.
- Find the common connection point (PCC)
- Determine which system buses inside the plant are prone to harmonic distortions.
- Get information on harmonics from all nonlinear loads.
- Get crucial information, such as the greatest and lowest short circuit fault levels, on the voltage and current harmonics at the chosen PCC.
- Do a harmonic analysis of the electrical network using ETAP (Electrical Transient Analysis Program).
- The buses and PCC’s current and voltage wave distortions, both overall and at discrete levels.
- Sketch the harmonic frequency range.
- If the harmonic distortion levels go over the permitted values, a suitable mitigation strategy is suggested and put into practice.
- When the mitigation strategy has been incorporated, rerun the analysis.
CareLabs Service Benefits:
Stage 2 entails higher ratings if the background harmonics have previously been assessed.
- Stage 2 allows for changing converter size based on fault level and converter type if the backdrop is less than 25%.
- Converter ratings of half the amount are allowed when the backdrop is between 25% and 75%.
- For a higher backdrop, a thorough harmonic examination is carried out.
Our professionals will be close by in case of a routine or emergency thanks to CareLabs’ crew members who have been dispatched to various areas. CareLabs has a strong clientele that has given it outstanding feedback, and it has swiftly established itself as an ISO 9001:2008 recognized company. In Bangkok, Chiang Mai, Samut Prakan, Udon Thani, and Nonthaburi, to mention a few prominent Thai towns, we provide harmonic research and analysis services. To schedule your harmonic analysis and study in Thailand or to get a quotation, contact us right now!
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