Noise Reduction Measures and Application of Frequency Control System

Installing the frequency converter in a closed switchgear can prevent electromagnetic radiation pollution and can also shield external interference. The noise reduction and anti-interference measures usually taken are as follows. Noise reduction measures and applications of variable frequency speed control systems. The noise reduction measures use high-performance silent frequency converter, which can fundamentally reduce noise pollution and reduce interference to neighboring systems. It needs to be precisely controlled or the surrounding environment and system sensitive to electromagnetic interference should be preferred, but the price of the inverter is relatively high. high.

The frequency converter is installed in the closed switchgear to prevent electromagnetic radiation pollution and external interference, but the additional investment is high, and the heat dissipation performance is poor. It is generally used for installation in harsh places such as outdoor or dust pollution. The situation and the need to concentrate on the installation.

The drive should be installed away from noise sensitive devices. The output line of the inverter should be as short as possible. It is advisable to choose the wire to be laid or to use the armored (shielded) cable. When conditions permit, the symmetrical shielded cable should be used preferentially, which can effectively suppress the radiation and conduction of electromagnetic waves. When a switch is connected between the inverter and the motor, the shield line should be kept as continuous as possible.

Large Infrared Touch Frame (Splicing)

The splicing touch frame is an important part of the touch splicing screen system. Compared with other media propaganda carriers, the touch splicing screen reflects the extensiveness, intuitiveness, and fun of human-computer interaction and presentation, and has a strong visual impact. It has made a big step forward in the development of the touch industry. It is also a promoter of super-sized display integrated touch. The large-sized spliced touch TV display wall has involved schools, shopping malls, banks, digital exhibition halls, corporate exhibition halls, and government Institutions and military command can be equipped with digital content, interactive games, animation, 3D, VR, interactive audio and video, etc. It is an indispensable and effective application device for today's interactive large-screen demonstrations.

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