1. Tinjauan Proyek
This is a chemical plant with a lot of high-power water pump equipment, dan sejumlah besar konverter frekuensi dipasang untuk kontrol pompa air.
These frequency converters have caused serious harmonic problems in the system. The harmonic distortion rate has reached 35%, which seriously affects the safe and stable operation of the system. It is urgent to carry out harmonic control, improve the power grid environment, and avoid safety hazards.
2. Diagram sistem distribusi dan beban harmonik utama
There are two 10/0.4KV transformers on site, the main load is the water pump, and the main harmonic source is the high-power frequency converters.
3. Solusi mitigasi harmonik
It is designed to install a 400A active power filter downstream of two transformers on site to control the harmonic current.
Due to the limited installation space and budget of the customer, the newly added active power filter cabinet downstream of the II-stage transformer is suggested to be installed using the equivalent load-side connection method.
Pemilihan peralatan: Filter daya aktif (APF)
Model Peralatan: CoEpo APF/400-0.4-D
Management method: bus centralized management
Installed capacity: 800A
Metode instalasi: jenis rak
Lokasi Instalasi: power distribution room
4. Memengaruhi
The main harmonic orders are the 5th Dan 7 th Harmonik, and the current waveform presents a typical double-headed waveform. Before the treatment, the total harmonic distortion rate of the system reached 35.8%. After the treatment, the wave distortion rate dropped to about 5%, the waveform returned to normal, and each harmonic dropped significantly.
The main harmonic orders are the 5th Dan 7 th Harmonik, and the current waveform presents a typical double-headed waveform. Before the treatment, the total harmonic distortion rate of the system reached 32.8%. After the treatment, the wave distortion rate dropped to about 5%, the waveform returned to normal, and each harmonic dropped significantly.
Tag: Harmonic problem in the system, kontrol harmonik, Solusi mitigasi harmonik, 400A active power filter, active power filter cabinet, Filter daya aktif (APF), CoEpo APF/400-0.4-D, Pemasok, produsen, pabrik, grosir, membeli, harga, kutipan, dalam jumlah besar, untuk dijual, perusahaan, saham, biaya.
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