Solution description

Factories and enterprises are among the scenarios where electricity consumption and power loads are concentrated, and their load types are complex and diverse. Mainly includes: various three-phase asynchronous motors (fans, pumps, compressors, crushers, mills, conveyor belts, etc.), welding machines, resistance furnaces, medium-frequency induction heating furnaces, variable frequency speed control devices, rectifier power supplies, electroplating power supplies, UPS uninterruptible power supplies, CNC machine tools, automated production line control systems, and lighting systems. Among them, a large number of motor-type inductive loads need to absorb a large amount of reactive current during operation, with generally low power factor, generally between 0.75~0.85, leading to increased current, losses, and voltage drops in transformers and distribution lines. Meanwhile, nonlinear equipment such as frequency converters, rectifiers, and medium-frequency furnaces generate large amounts of harmonic currents during operation, mainly odd harmonics such as the 5th, 7th, 11th, and 13th harmonics. These harmonic currents form harmonic voltages on system impedance, causing voltage waveform distortion and affecting the control accuracy of precision machining equipment, causing additional motor heating, vibration, and increased noise, and even incidents such as capacitor bank burnout and relay protection malfunctions. Especially in automated production lines, which are highly sensitive to power quality, harmonic pollution may cause abnormal reset or malfunction of control units such as PLCs and servo drivers, resulting in production interruptions and increased defect rates, directly harming the company's economic benefits. Harmonic and reactive power issues overlap, seriously threatening the safe and economical operation of factory power distribution systems. 

Recommended plan

In low-voltage distribution systems of factories and enterprises, an IVL-RCS static filtering compensation module is installed. This component consists of filter capacitors and filter reactors connected in series, specifically designed for reactive power compensation in harmonic pollution environments. Among them, the RCS series filter compensation modules with a reactance of 7% have a tuning frequency of 189Hz, effectively suppressing harmonic pollution five times or more, suitable for general industrial scenarios mainly involving frequency converters and rectifier equipment; The RCS series filter compensation modules with a reactance of 14% have a tuning frequency of 134Hz, effectively suppressing three or more harmonic pollution cycles, suitable for special operating conditions involving large single-phase nonlinear loads or severe three-phase imbalance. This module automatically groups and switches based on system reactive power requirements, responds quickly, offers high compensation accuracy, and ensures the power factor remains stable within the set range. For factories with high harmonic content and strict power quality requirements, such as precision manufacturing, automotive welding, and electronic assembly, IVL-APF active filters can be further configured to operate in coordination with IVL-RCS static filter compensation components to achieve comprehensive management of dynamic reactive power compensation and wideband harmonic removal. Combined with our company's production of high-voltage switchgear, low-voltage switchgear, box-type substations, cable branch boxes, switchhouses, ring network cabinets, gas inflators, environmental protection cabinets, prefabricated cabins, and other complete sets of power equipment, we can provide factories and enterprises with a full-chain power quality solution from high-voltage incoming lines to workshop end-of-pipe distribution, ensuring the safe, stable, and efficient operation of the distribution system. 

Solution benefits

Significantly increase the power factor of the factory distribution system to above 0.95, avoiding power rate fines caused by substandard power factor and directly reducing monthly electricity expenses; Reduce the flow of reactive current in transformers and lines, lower copper and iron losses, achieve energy saving and consumption reduction, and lower unit product electricity costs; Filter harmonic currents and suppress harmonic amplification, effectively protect distribution equipment such as motors, transformers, capacitors, and cables, reduce equipment heating and insulation aging, extend equipment service life, and reduce maintenance and replacement costs; Eliminate interference of harmonics on control equipment such as PLCs, servo drives, and CNC systems, ensuring continuous and stable operation of automated production lines, and reduce scrap rates and downtime losses; Eliminate system resonance hazards, improve power supply reliability, and prevent sudden power outages caused by power quality issues. The solution combines energy saving, consumption reduction, and quality improvement and efficiency enhancement, providing a solid power guarantee for factories and enterprises to achieve green manufacturing and lean production.