Jiangsu Sifei ElectricRecently, the group has provided reactive power compensation and harmonic control solutions for domestic agricultural product deep processing enterprise users, and also involves fields such as medicine, electricity, water conservancy, and logistics. For a long time, the leadership of the company has led its employees and local farmers to adhere to the path of agricultural industrialization, committed to improving the level of agricultural industrialization management and developing high-tech products. At present, it has developed into a large manufacturing enterprise in China, and its pharmaceutical projects have established sales offices in the United States, Europe, South America and other places, making positive contributions to China's export industry.

Enterprises can convert corn annuallyWith a production capacity of over 1 million tons, the biopharmaceutical engineering series products under the group rank among the top in the world, driving the development of various industries such as local agricultural structural adjustment, planting, breeding, transportation, and reemployment of surplus labor.

With the rapid development of China's industrial sector, a large number of rectification and nonlinear equipment used by heavy industrial enterprises have also generated a large number of power quality problems, seriously affecting the power quality of the power grid and users' own power supply networks. Common power quality issues include: excessive current harmonicsvoltageHarmonics exceeding the standard, voltage fluctuations and flicker, three-phase imbalance, etc. These power quality issues can cause equipment damage and threaten the safe operation of the power grid and electrical equipment, reducing equipment utilization and service life, and increasing energy consumption.

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Power Quality Management System

Enterprise users usually adopt a three-level distribution structure, starting from the entrance of the householdThe 35kV/10kV high-voltage main transformer is distributed through high-voltage distribution to the 10kV/400V transformer, and then to the low-voltage distribution. It is distributed to the electrical terminal equipment through the 400V busbar and switch.

Harmonic currents generated by nonlinear devices such as frequency converters and inverters travel up the power supply circuit to the high-voltage side and have adverse effects on surrounding equipment.

The following are common harmonic source devices.

Harmonics are commonly present in some manufacturing industries and pose significant harm, while also polluting the power grid through distribution transformers. Therefore, active filters are used in the solutionThe combination of SFR-APF and SFR-LCK is used for harmonic control and reactive power compensation to solve the power quality problems of enterprises.

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Composition of Power Quality Management System

、SFR-LCK reactive power compensation cabinet

feature

Real time compensation, fast output.

Has anti harmonic function.

function

Display information such as voltage, current, power factor, etc.

、SFR-APF active power filter

feature

adopt7-inch human-computer interaction interface.

The full response time is less than5ms, Faster control and higher efficiency.

function

Display the waveform diagram and harmonic spectrum diagram of the system before and after compensationTHDi、THDu、 Information on the improvement of power quality in systems such as effective current value and power factor.

by usingJiangsu Sifei ElectricThe series of products have achieved the expected goals, including current and voltageTHD has dropped to the national standard range, and the monthly average power factor has increased to 0.98. The company's electricity consumption has met the reward requirements of the power supply department, bringing actual economic benefits to the companyAt the same time, we also ensure the safe and stable operation of other related equipment (such as significantly reducing transformer noise), improve energy utilization, and reduce line losses.

3
In conclusion

Jiangsu Sifei ElectricThe SFR-APF series and SFR-LCK series power quality control equipment have excellent control effects and eliminate unsafe factors such as resonance risks, helping users solve practical power quality problems. This product will gradually replace traditional capacitor compensation cabinets and become a new generation of power quality management equipment.Jiangsu Sifei ElectricAdhering to the development concept of independent innovation, we create value for every customer with high-quality products and efficient services!