Since more and more electronic devices used today has increased so much, the main reason for the formation of harmonics seems to be this crowd of devices. In other words, if we are to ask why harmonics happens, the basic reason lying here is the modern life itself. In addition, the use of the modern energy conversion techniques by that obvious increasing number of devices also creates harmonic current too.
However, this is not always possible as DC power supplies are becoming more and more popular. Even the widespread use of LED lighting, especially in public spaces and buildings, causes harmonic current. If we collect all these, we can define the current harmonic as follows: sinusoidal waves other than the fundamental normal wave that disturb the voltage. Sinusoidal waves are considered current harmonic and a large number of devices in a system can be the main reason for this.
In other words, the formation of harmonic components in the system is not a desirable situation in an electrical system. Various loads can cause this, but it needs to be measured evaluated and prevented. With another definition, harmonic is the technical name given to the deterioration of electricity in the form of sinuses. Today this situation can occur easily in systems that are under a lot of load, that is, it is common.
In this regard, it has become essential to be careful and prevent it. For example, electronic cards, motors and drivers, uninterruptible power supplies, fluorescent lamps may be too much for the system. Likewise, in the simplest way, harmonics are formed when a large number of computers and the equipment we have mentioned above come together. It is necessary to take professional precautions to prevent harmonic formation and to be protected from harms of it. Otherwise, transformers get overheated, devices may get damaged and mains voltage will deteriorate drastically. With the appearance of such symptoms in similar conditions, overload creates major risk factors and precautions are extremely necessary.
The use of Noker Electric active power filter, can filter the harmonic current in the system, improve the power factor of the system, and can be adjusted for the three-phase unbalanced system, is a very ideal equipment to improve the quality of power supply.
Post time: Jun-05-2023