Malaysian Power System Harmonic Analysis

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Malaysian Power System Harmonic Analysis

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Power is an important part of life in the modern world. We are constantly surrounded by things that are powered in some way. In order to provide affordable and safe power, we need to use the best energy systems. Harmonics increase the rms value of the current in the circuit, increasing losses. This has caused many problems in the power system. Harmonics can affect both consumers and the entire distribution system. Sensitive equipment and systems in industrial or commercial facilities can be damaged by harmonics. In other cases, the presence of harmonic breakdown is not readily apparent and indistinguishable from normal device aging.

Represents Harmonic Distortion:

When harmonic problems occur, the impact on power supply reliability is limited. Power system problems are caused by current and voltage harmonics. High levels of harmonics in power systems can damage or destroy equipment. Nonlinear loads in electrical systems often contribute harmonics or distortions to the current waveform. Examples of nonlinear and harmonic generating loads in power systems are personal computers, variable speed motors, drive motors, fax machines, laser printers, switched mode power supplies (SMPS), batteries, and uninterruptible power supplies (UPS). included.

Harmonic Analysis Relevance

Electrical systems work and degrade in the presence of harmonics. Improve system reliability by using harmonic analysis to find harmonics in power grids. Modern power electronic devices are often used, resulting in non-linear currents. Therefore, the system voltage generated harmonics. Devices and systems must meet energy efficiency standards and be energy efficient.

When Was Harmonic Analysis Needed?

If the load reading exceeds 25% of the total load on the circuit or bus system, the harmonic limits should be checked.
Address harmonics-related issues such as equipment failure and damage.
Both the timing and number of nonlinear loads introduced as the plant is scaled up.
Harmonic analysis becomes necessary when additional capacitor banks are introduced into the electrical system.

Device grouping	Successful conclusion
Rotating machine	Cable resistance that is increased, power loss, overheating, and pulsing thrust.
A generator, switchgear, and power lines	Excessive consumption, overwhelming the neutral, overheating, and power outages
Batteries with capacitors	A malfunction with strong current
Electric force	Inefficiency and shortcomings
Protecting links	Mistakes and inconvenient stumbling

Nonlinear loads interact with sinusoids and produce distortion and harmonics in the system. Harmonic analysis is often required whenever it is important to determine whether harmonics are present in a system.

Benefits of Mitigating Power Grid Harmonics:

Harmonic analysis reduces operating costs by reducing power losses in cables, switchgear and safety devices. In addition, it helps reduce power system losses.
Reduced demand for cables, switchgear and busbars minimizes the RMS current of the power system and prevents oversized transformers, thus reducing capital costs.
Automatically improves business performance after reducing losses and lowering RMS power values. Increased losses, increased RMS currents, and overheating of cables, transformers, motors, and capacitors are all harmonic effects. An adverse outcome may force you to abandon the procedure and lose money.

Power Quality Analysis Techniques:

To highlight non-linear loads, take a single-line figure.
Shared point of connection (PCC) tracking.
Emphasize factory buses where harmonics can affect.
Collect all data on non-linear load and harmonic performance from utility supplier in the past.
Using the ETAP (electrical transient analysis program) program and the electrical system feature, create a model. Perform harmonic analysis and investigation, as well as check voltage and current distortion.
Decide on a mitigation strategy if harmonic distortion is too high.
Rerun the harmonic analysis after using the mitigation strategy to confirm CEC compliance.

To ensure the safety of your electrical equipment and provide you with a reliable operating environment, CareLabs provides its employees with the latest equipment. Request a quote for CareLabs harmonic analysis and research services and learn more now.