Winter goes and spring comes. In the greenhouse of Majiagang strawberry planting base in Yiquan Town, donggang city, Dandong, Liaoning, Zhao Xiumei, a grower, is busy with drip irrigation, picking and coring. The second batch of strawberries in spring is being packed neatly into foam boxes and will be sent to all parts of the country within 48 hours. Technicians from the Power Distribution Technology Center of State Grid Liaoning Electric Power Research Institute and operators from the Chair Ring Power Supply Office of State Grid Dandong Power Supply Company are checking the switches, leakage protectors, pumping, heat preservation, lighting and other equipment in the greenhouse, and helping to replace the aging circuit breakers, socket switches and other electrical facilities.
Majiagang, Yiquan Town, donggang city, Dandong, is the first batch of northern winter strawberry producing areas in China, with a history of nearly 100 years. After years of development, the local authorities have summed up a set of standardized technical regulations for strawberry cultivation, which ensures the yield and quality of strawberries and makes plump and juicy Dandong Donggang strawberries a shining city business card.
Spring in the northeast always comes late. The spring sowing has not yet started, but the greenhouse is full of green, and the smell of strawberries is accompanied by the smell of soil. Since 20 1 1, open-air strawberries have been gradually eliminated, and solar greenhouses have sprung up. Strawberry greenhouse simulates the temperature, humidity and light needed for strawberry growth, which helps strawberry to "reverse jet lag". With the improvement of strawberry planting technology, the electrification and automation equipment such as pumping drip irrigation, roller blinds, fans and conveyors in strawberry greenhouses also increase, and the demand for reliable electricity is increasing day by day.
In order to ensure the reliable power consumption of Majiagang strawberry base, the local power supply station has expanded, upgraded and reformed the Xudaling line for many times, but some farmers and greenhouses at the end of the line are still often troubled by low voltage problems. "The winter before last, it snowed several times, and the shutter machine couldn't start. We put it on the shed." Zhao Xiumei said.
State Grid Liaoning Electric Power Research Institute has always regarded helping agriculture and rural areas improve their production and living conditions as a key task. In 2022, Xu Daling Line was simulated and calculated by the self-developed low-voltage simulation integrated management system, and feasible comprehensive transformation suggestions were given.
This trip to Dandong is not only an inspection of newly rebuilt lines, but also a return visit to historical governance. "Thanks to the transformation plan of the Electric Power Research Institute, our transformation has rules to follow, and the low-voltage problem has been solved in one step with the least funds." The relevant technical personnel of Dandong Company said.
"The strawberries last winter were big and sweet, which really made us have a good year. When the new shed was built, it cost more than 200,000 yuan, and it will come back this year! " Zhao Xiumei said: "After the renovation at the end of last year, the problem that the roller blinds could not be brought up was gone. I also installed a deep well pump in each greenhouse. It won't take long to take care of these sheds every day. I'm going to build another two acres of greenhouses next year. "
"Berry" good life, electric escort! Facing the future, Liaoning Electric Power Research Institute of State Grid will continue to focus on the comprehensive management of low voltage of distribution lines and the optimization of reactive power compensation in distribution stations, and systematically solve the problem of low voltage in rural areas on the basis of electrifying every village, so that farmers can make good use of safe electricity and rest assured electricity, and provide reliable power technical support for helping rural revitalization and development and serving spring ploughing and spring irrigation.