Harmonic distortion is measured by calculating the difference between harmonic frequencies of the input signal and output signal. Higher will be the difference, higher will be the harmonic distortion percentage.
Sine wave inverters help in producing a sinusoidal current that helps in reducing the distortion by delivering a particular input signal. If it is measured against the output signal, it may result in the total harmonic distortion of less than two per cent.
The one below that deadline is the maximum percentage of total harmonic distortion that is produced by sinusoidal power inverters.
Working of Sinusoidal Wave Inverters
The impact of true sinusoidal wave inverters can be understood properly by comparing them to counterparts, i.e., modified power inverters. True sine wave inverters are known for emitting sinusoidal current. The current is visualized as under:
- Smooth
- The undulating line of identical valleys and peaks
Whenever the equipment is designed for receiving sine current, a significant amount of harmonic distortion is noticed. There are numerous devices that operate after receiving non-sinusoidal current, the harmonic distortion will affect their operations significantly.
What are the Common Signs of Distortion?
The signs of total harmonic distortion vary from one device to another. Some of the most common signs of distortion include the following:
- Exhibiting of buzzing noises by speakers
- Emission of a loud hum from fluorescent ballasts
- Computer systems having lines rolling all across the screen
- Conventional telephone systems becoming static
- Random switching of circuit breakers unnecessarily
In selective buildings, the distortion is created by solid-state and non-linear loads that include computer systems. They are known for containing microprocessors that create distortion frequently. The problem is the result of an external source that includes a building sharing the same transformer with an affected building.
Interesting Applications of Harmonic Filters
A harmonic filter is completely a cost-effective and very much useful in various important applications. It serves as a solution in case of problems that are related to power quality. There is no need to worry about the fee of management as it gets eliminated when an active filter is used.
Also, it offers a parallel connection that is highly beneficial for large systems. There is no need to go with a special type of current transformers as the filter offers phase load balance too. Some of the highly remarkable applications include the following:
- Easy commissioning
- Reactive power compensation
- Harmonic current predictions
It is known for providing the benefit of offering Advanced Modulation technology for reducing harmonic distortion that is ultra-low. Also, it offers a user-friendly graphical user interface in LCDs that is useful for people having a minimum level of knowledge related to the operation.
Harmonic filters offer high functionality. Also, they are useful in terms of innumerable advantages that are hardly comparable to none. The high effectiveness and great performance have increased demand for filters over the past years. It is leading to the rise of innumerable applications in various walks of industrial life.
Contacting a reliable provider of commercial power solutions will help in assisting and resolving the problem that persists.
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