What are the technical and management measures for the economic operation of distribution network?

1. Reasonably adjust the operating voltage. By adjusting transformer taps and switching power capacitors on the bus, the operating voltage can be appropriately adjusted while ensuring voltage quality. Because active power loss is proportional to the square of voltage, reasonable adjustment of the operating voltage can reduce losses and save energy.

2. Use transformers rationally. The losses of distribution transformers are the main component of distribution network losses. Therefore, reducing the losses of distribution transformers has a very obvious effect on reducing the losses of the entire distribution network. The main methods include: using new low-loss transformers, rationally configuring distribution transformer capacity, etc.

3. Balance the three-phase load. If the three-phase load is unbalanced, it will increase the losses of lines and distribution transformers.

4. Reasonably install reactive power compensation equipment, optimize the reactive power distribution of the power grid, and improve the power factor.

5. Reasonably select the wire cross-section. The energy loss of the line is proportional to the resistance. Increasing the conductor cross-section can reduce energy loss.

6. Strengthen line maintenance to prevent electricity leakage. The main purpose is to regularly inspect the lines, timely detect and deal with line leakage and joint overheating accidents, which can reduce losses caused by excessive joint resistance, replace unqualified insulators in a timely manner, regularly prune the branches of trees along the power lines, and clean them regularly. Transformers, circuit breakers and insulating porcelain parts, etc.

7. Arrange maintenance reasonably to improve the quality of maintenance. When the power grid operates according to the normal operating mode, it is generally safe and economical. When the equipment is inspected and repaired, the normal operating mode is destroyed, causing line losses to increase. Therefore, equipment maintenance must be planned, the quality of maintenance should be improved, temporary maintenance should be reduced, maintenance time should be shortened, and live maintenance should be promoted.

8. Promote the application of new technologies, new equipment, new materials, and new processes to reduce power consumption.

9. Adjust the load curve to avoid large-capacity equipment using electricity during load peaks, shift peaks and fill valleys, and increase the daily load rate.