The Industry
The intermediate frequency electric furnace has high electrical efficiency and thermal efficiency, short melting time, power saving, less floor space, low investment, easy to realize process automation and production flexibility.
The medium frequency electric furnace is suitable for smelting cast iron, especially suitable for melting alloy cast iron, nodular cast iron and vermicular cast iron.Its adaptability to the charge is also strong, and the variety and size of the charge can be varied within a wide range.
The background
Commercial complex harmonic mainly has the following two sources:
The Problem
The main load on the site of a machinery factory is an intermediate frequency furnace. Due to the large amount of harmonics generated when the intermediate frequency furnace works, the transformer on site is noisy, and the protection fuse of the capacitor cabinet is frequently burned out and cannot operate normally.
Lower Power Factor(0.66) cause penalty from electricity company.
The Solution
For the on-site situation, we configure 500A Active Harmonic Filter and 250kvar Static Var Generator to manage the on-site power quality problems. It can be seen from the field test data (see the figure below) that after the treatment of the YTPQC-AHF active power filter and the YTPQC-SVG Static Var Generator, the field power quality problem has been well resolved, and the current waveform is determined by the sawtooth wave before compensation. It becomes a sine wave, the harmonic current distortion rate is reduced from 61.3% to 3.5%, and the system power factor is increased from 0.67 to 0.99.
The Performance
The Picture
Click here to view more applications.
Subscribe to us to enjoy event prices and get some of the best prices.