Background
A manufacturing facility was experiencing unstable power quality due to a large number of inductive loads, including motors, pumps, compressors, and variable frequency drives (VFDs). The facility had noticeable voltage fluctuations and a low power factor, which increased electrical losses and affected the stable operation of sensitive equipment.
To improve the power quality, a Static Var Generator (SVG) was installed as a dynamic reactive power compensation solution.
Power Quality Problems
Before installing the SVG system, the facility experienced several common electrical problems:
- Low and fluctuating power factor
- Rapid changes in reactive power demand
- Voltage fluctuations caused by large motor loads
- Increased current in distribution cables and transformers
- Higher electrical losses and reduced system efficiency
Traditional capacitor banks were not able to respond quickly enough to the facility’s rapidly changing load conditions.
SVG Solution
A Static Var Generator was installed at the main distribution panel to provide real-time reactive power compensation.
The SVG continuously monitors the electrical system and automatically generates or absorbs reactive current according to the load demand. Unlike conventional capacitor banks, the SVG can respond within milliseconds, making it suitable for dynamic industrial loads.
The main functions of the SVG system included:
- Dynamic reactive power compensation
- Power factor correction
- Reduction of reactive current
- Improvement of voltage stability
- Reduction of transformer and cable losses
- Results After Installation
After the SVG was commissioned, the facility achieved a more stable power factor and significantly reduced unnecessary reactive current.
The improved power quality also helped reduce the electrical stress on transformers, cables, and other distribution equipment. The facility gained a more stable power supply and improved overall electrical efficiency.
For industrial facilities with rapidly changing loads, SVG technology provides a flexible and fast-responding solution for power factor correction and reactive power compensation.
Conclusion
This application demonstrates how a Static Var Generator can improve power quality in industrial power systems. Compared with traditional capacitor compensation, SVG provides faster dynamic response, more precise compensation, and better performance under fluctuating loads.
For factories, manufacturing plants, and other industrial facilities with dynamic reactive power demand, SVG can be an effective solution for improving power factor, reducing electrical losses, and maintaining stable power system operation.
