On April 7, Jiangsu Jintan Power Supply Company came to the news that the “Intelligent On-Board Reactive Power Compensation Device†independently developed by the company successfully tested on the 10 kV distribution network line. The device hang-up test was the first case in Jiangsu Province, which can effectively reduce the line loss of the distribution line.
It is understood that some of the 10 kV lines have low voltage and high line loss at the end of the line due to low power factor. The traditional way is to install column reactive power compensation devices on the line. Because it cannot be automatically switched, the reactive power management of the line cannot be controlled, and over-compensation occurs when the load is low, resulting in overvoltage of the line. And because it can't be remotely monitored, it doesn't know if it's broken, so most of the on-column reactive power compensation is basically damaged, and many lines have unreliable control of line voltage quality because of reactive power problems, and the line loss is very large.
After more than a year of research and development, the research and development personnel of the Jintan Power Supply Company successfully developed the “Intelligent On-Column Reactive Power Compensation Device†and conducted a hanging net test on a 10 kV distribution network line. The device consists of an open sampling current transformer, a smart capacitor unit, a power box, and an intelligent control device. In the next step, the company will also establish intelligent communication terminals, use mobile phone card communication and "intelligent column reactive power compensation device" to form a system so that the power factor of the line can be monitored and managed, and the reactive power compensation and voltage of the power grid can be automatically optimized. Quality, automatic graded operation, automatic detection, automatic switching.
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