With a roar, gliding, circling, rolling vertically, and colorful smoke cuts the air... A series of "national weapons" soaring in the air, and the blue sky is grandly held, and everyone is watching.
From November 8 to November 13, the 14th China International Aeronautics and Space Expo (hereinafter referred to as " Air Show ") will be held in Zhuhai. In accordance with the first-level power supply standards, the Guangdong Zhuhai Power Supply Bureau of the State Grid continued to strengthen the safety and stability of the power grid, reliable power supply, and safety protection of power facilities. It invested about 180 special tours of Twee to important places, transportation hubs, hotels, etc. in the city's air show related to air show in every day. At the same time, 9 power generation vehicles and 1 UPS power supply vehicle were arranged in the air show pavilion, and a front-line power supply team composed of 51 operation and maintenance personnel to ensure that the air show power supply "is open for 24 hours". During the air show, the power supply personnel of Zhuhai Jinwan Power Supply Bureau inspected the electricity consumption in each exhibition hall every day and paid attention to changes in power loads in a timely manner.
for the first time applied the innovative technology of power distribution intelligent gateway
Entering Hall 2 Chinese People's Liberation Army Air Force Exhibition Area, the right-angle large screen shows air show enthusiasts such as the transformation of the J-20 fighter into Transformers, Y-20 soaring in the blue sky, and making people feel immersive. The gorgeous lights reflect the charm of electricity.
"The exhibition area of this year's air show has expanded by about 10,000 square meters, and the workload has also increased accordingly." Huang Donglong, a power supply staff member of the Zhuhai Power Supply Bureau Air Show, introduced that this year, the Zhuhai Power Supply Bureau has taken over a number of user distribution assets in the exhibition hall, including 3 electric rooms, 39-sided high-voltage cabinets and 12 transformers.
South Grid Corporation Independently developed power distribution intelligent gateway technology is used in the distribution room in the air show for the first time. The power supply guarantee personnel at the rear can monitor online through the company's monitoring system. Once abnormalities are found, they can promptly notify the on-site personnel to carry out emergency response.
In this regard, in order to improve the operation and maintenance efficiency of power supply, Zhuhai Power Supply Bureau has applied the distribution room independently developed by the Southern Power Grid Company in the distribution room in the air show for the first time. The power supply personnel behind can monitor the equipment status, operation data, and environmental conditions in the distribution room in real time through the monitoring system of the Southern Power Grid Company. At the same time, they are equipped with gas sensors, video monitoring devices, water-impregnated sensors, smoke monitoring sensors and other devices to monitor the distribution room environment in real time. Once an abnormality is found, the power supply personnel on site can be notified in a timely manner to carry out emergency response.
"When we were ensuring power supply for last year's air show, we found that many tourists drove electric car by themselves. It is our responsibility to provide electricity for everyone's green travel." Huang Donglong said that Zhuhai Power Supply Bureau has insight into this demand. After the end of last year's air show, it quickly formed a construction plan: next to the hotel group opposite the airport, a new fast charging station was built, and 9 DC charging piles in the station have been put into use. According to reports, within a radius of 5 kilometers of the Air Exhibition Hall, Zhuhai Power Supply Bureau has built more than 20 charging stations and 100 charging piles to provide power guarantee for everyone's green travel.
Zhuhai Jinwan Power Supply Bureau’s power supply personnel conduct safety inspections on electric vehicle charging piles around the air exhibition hall.
"A small nail may be a time bomb"
In July this year, the Zhuhai Jinwan Power Supply Bureau organized a "study" of the distribution assets of the newly taken over users. During a cable oscillation wave test, the operation and maintenance personnel detected a weak discharge signal in the soil trench, which may be a misjudgment of the detection equipment.
"If you don't be afraid of ten thousand, just be afraid of one." Ke Yiyue, who has many years of experience in ensuring power supply for air show, immediately decided: to conduct on-site inspections immediately. After many inspections, it was found that the source came from a small iron nail hidden in the soil. After digging it open, it was found that the iron nail had been stuck in the cable, and the operation and maintenance personnel immediately carried out defect removal work.
"Don't underestimate a small nail, it may be a time bomb." Recalling, Ke Yiyue was still in fear, "If it is not handled in time, once the power supply line is under a large power load, the small gap caused by the iron nails will also short-circuit, and even cause the entire exhibition hall to be powered out." The fault in
has just been dealt with, and another difficult problem has been revealed.Under the covered soil located two meters deep, the detector discovered a faint discharge. After analysis, Ke Yiyue discovered that the hidden danger point was horizontal and horizontal, and the aviation fuel pipeline was interspersed. In order to prevent mechanical damage from breaking the ground and destroying other pipeline cables, he decided to take the most primitive method: put on insulated gloves and dig out the soil inch by inch by bare hands. After three days, the source of the fault, the connector in a broken cable, finally revealed. "If there is heavy load during the air show, there will definitely be problems," he said.
"This time the stone in my heart finally landed." After both hidden dangers were eliminated, Huang Donglong sighed. In order to ensure that the power supply line is repaired in a timely manner and restored to safe and stable operation, he ran to the air exhibition hall no less than 30 times within three days to coordinate the deployment of equipment parts back and forth. On the eve of the opening of the air show, the power supply personnel of the Zhuhai Jinwan Power Supply Bureau connected emergency power generation power to important places in the air show. During the exhibition, many equipment began to operate at full capacity. In order not to affect the intense exhibition work of the air show, the Sanzao Power Supply Station of Zhuhai Jinwan Power Supply Bureau discussed with the air show company and won the time from 5:30 pm to 8:30 am the next day, to stagger the peak electricity consumption time during the day, and to carry out the final "night-time elimination" of the line. During the 15 hours, the maintenance personnel sorted out the power supply lines one by one, not letting go of every switch or plug, and checked the "0 blind spots".
"The total emergency power supply capacity of an emergency power generation vehicle is 4,250 kilowatts, which is equivalent to being able to meet the continuous operation of more than 2,000 air conditioners at the same time." Huang Donglong introduced that during the air show, the Zhuhai Power Supply Bureau deployed dual insurance power protection measures of "exclusive power generation vehicle + technicians' fixed-point duty" and prepared an emergency response card, clarifying the handling process and responsible persons, and doing its best to ensure power supply during the air show.
[Written by] Huang Tianru Liu Zixin
[Author] Liu Zixin Huang Tianru
[Source] Southern Media Group Southern + Client
