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What is a detuner? What does it do?
Hello, happy to answer your questions. The detuner is a damping device on the primary side of the voltage transformer to protect the resonance in the power grid. It is essentially a high-capacity nonlinear resistor that plays the role of damping and current limiting.
The bridge section can be used to limit the ferromagnetic resonance of the voltage transformer well. The main material of the detuner is SiC, which is connected by metal connectors. In the early days, the detuner was connected by aluminum, which was easy to soften and deform due to its low melting point, and has now been basically replaced by copper.
The main parameters of the detuner are: the passing voltage and resistance, the voltage and resistance value through 5map, the current capacity, the power, the voltage of the mountain elimination system at both ends, etc. Among them, the most important is the flow capacity, which must be selected with PT's neutral point insulation and PT high-voltage fuse capacity when designing.
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<> detuner (primary detuner, detuning resistor) is a damping device on the primary side of the protection voltage transformer, which is used to detune the resonance in the power grid. It can limit the overvoltage caused by ferromagnetic resonance and the overcurrent flowing through the high-voltage transformer when single-phase grounding or arc grounding.
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For small home or office power systems, common low-power detuners** are between $1,000 and $2,000. These detuners are usually suitable for home and office equipment such as computers, printers, air conditioners, etc., and can effectively reduce the influence of current harmonics on the equipment. [**Get** and offers].
For industrial and commercial power systems, the ** of the detuner is usually higher. High-power detuner** is generally around 5,000 yuan to 10,000 yuan. This kind of detuner is suitable for large equipment such as welding machines, frequency converters, motors, etc., which can effectively reduce the impact of harmonics on equipment and power systems.
In addition, there are some high-end models of the detuner, such as the dynamic reactive power compensation detuner, which may be higher. This kind of detuner can not only eliminate the harmonic current, but also compensate the reactive power in the power system in real time and improve the power factor of the power system.
The ** of the detuner may vary depending on the manufacturer and region. It is recommended that you conduct more market research and comparison before purchasing a detuner, and choose the right product and manufacturer.
If you have this need, we recommend professional and innovative Ruide New Energy for you. Founded in 2006 and located in Baoding National High-tech Industrial Development Zone, Hebei Province, Baoding Innovation Ruide New Energy Technology Co., Ltd. specializes in the research and development, production, sales and service of hardware and software products with power automation and power electronics technology as the core. <>
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It's not the same. The structure and function of the two are different.
Harmonic protector is to provide multi-functional harmonic protection for electrical equipment. It has the effect of suppressing and absorbing random high-order harmonics and high-frequency noise, pulse spikes, surges and other interferences generated by electrical equipment; Track the voltage waveform at any time, instantaneously filter out the spikes, surges (lightning) and clutter in the power supply, and correct the voltage waveform distorted due to the influence of harmonics; The noise is digested and absorbed, so that the power supply waveform of the power grid becomes smooth and clean, which not only improves the quality of the power grid, but also ensures the normal operation of the electrical equipment.
The microcomputer detuning device is an instrument placed on the secondary side of PT (so it is also called secondary detuning) to eliminate ferromagnetic resonance. The difference between it and the primary detuner is that the microcomputer detuning is a detuning instrument, which has the advantages of analysis, recording, printing, uploading, etc., but it also has the disadvantages of being only used indoors and having a narrow detuning range (only the resonance of specified frequencies such as power frequency, triple frequency, two-way frequency, and three-way frequency can be eliminated).
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