At 0:00 on April 28, 2011, Sichuan Chao (special) high-pressure operation maintenance company achieved safety production for 1,000 days, creating a new situation for safe and stable operation of Sichuan ultra-high voltage power grid.
Sichuan Chao (Special) Company currently operates 26 substations of 500 kV, with a substation capacity of 38.75 million kVA, a 500 kV converter station with a capacity of 3.5711 million kVA, and 77 AC transmission lines. 7623.559 kilometers, 2 DC transmission lines (including 1 800 kV line), a length of 427.305 kilometers; 2 grounding poles, 104.369 kilometers in length, 2 pole sites, the per capita management capacity and line length in the State Grid The system ranks first.
At present, the grid under the jurisdiction of the company is the most complex large-scale power grid in the country, and it is also the most difficult power grid. The average elevation is 1,296 meters, the highest altitude is 3,494 meters, 26 lines are located in high altitude areas; 33 lines are in no man's land and sparsely populated areas; 3,600 kilometers lines are in high mountain valleys, 25 lines cross the seismic belt; 15 lines are in the wind In the disaster-stricken areas, the maximum wind speed can reach 35m/s; on average, there are 47 days of lightning every year, and an average of more than 2.5 million lightning strikes occur each year. The low-temperature rain and snow weather averages 39 days per year.
With the large-scale transmission arteries of ±500 kV Debao DC and ±800 kV Fufeng DC built and put into operation one after another, five large-scale channels for the development of southwest hydropower have gradually emerged, and the world’s most advanced technologies have been applied in the power grid. And embodiment. From the southwest load end, Sichuan Power Grid has become a hub platform linking Central China, East China and Northwest China Power Grid.
In the face of challenges, the company always insists on safe production as an overriding core work to ensure the safe and stable operation of ultra-high voltage power grids.
The first is to strictly implement the safety responsibility system, improve the three-level hidden troubles inspection and management work mechanism of the company, the center (converter station) and the team, and reinforce the safety basic management work. By continuously strengthening the basic management of production safety, establishing a sound safety production system, and gradually solidifying good practices and experience, the work is constantly institutionalized, standardized, and streamlined. However, "to ensure that no personal equipment safety accidents occur."
The second is to carry out targeted special activities. Combining the company's safe production practices, we will vigorously carry out special activities such as “acquisition of safety, anti-violation, and promotion of safetyâ€, “transmission line inspection and control, and other special activities, increase efforts to protect power facilities, and improve the linkage mechanism with relevant government departments to eliminate all kinds of Hidden accidents and defects ensure the safe and stable operation of ultra-high voltage power grids.
The third is to make full efforts to fight well and meet summer peaks and meet peaks and winters to fight against tough battles. We must formulate work plans, improve various emergency plans, and carry out drills to prevent mountain floods, mudslides, and snow and ice freezing disasters to ensure that all kinds of work are well prepared. The response is timely and the disposition is effective. The company stole the Bopo three-fourth line in 29 hours, and continued to fight for 39 hours. It tried its best to get through the 500 kV Debao DC line and created the shortest time record for repair of similar faults.
The fourth is to focus on science and technology, and strive to promote the construction of information technology in power grid management. According to the characteristics of the ultra-high voltage power grid equipment, the "on-line ice monitoring system", "GPS line inspection and field monitoring system for transmission lines", "assisted inspection system for unmanned aircraft", "intelligent robot for transmission line inspection", and "substation The opening and application of technology projects such as the remote video surveillance system and the linkage of the “anti-theft alarm system†took the lead in implementing the “2+6†operating mode and realized “centralized monitoring and partition operationâ€.
Sichuan Chao (Special) Company has always insisted on safety analysis and timely control of safety production. In the process of power grid construction and transformation, they fully implement standardization operations, ensure that all work responsibilities are up to the people and the work flow is in place, effectively improving the on-site safety management level.
Sichuan Chao (Special) Company currently operates 26 substations of 500 kV, with a substation capacity of 38.75 million kVA, a 500 kV converter station with a capacity of 3.5711 million kVA, and 77 AC transmission lines. 7623.559 kilometers, 2 DC transmission lines (including 1 800 kV line), a length of 427.305 kilometers; 2 grounding poles, 104.369 kilometers in length, 2 pole sites, the per capita management capacity and line length in the State Grid The system ranks first.
At present, the grid under the jurisdiction of the company is the most complex large-scale power grid in the country, and it is also the most difficult power grid. The average elevation is 1,296 meters, the highest altitude is 3,494 meters, 26 lines are located in high altitude areas; 33 lines are in no man's land and sparsely populated areas; 3,600 kilometers lines are in high mountain valleys, 25 lines cross the seismic belt; 15 lines are in the wind In the disaster-stricken areas, the maximum wind speed can reach 35m/s; on average, there are 47 days of lightning every year, and an average of more than 2.5 million lightning strikes occur each year. The low-temperature rain and snow weather averages 39 days per year.
With the large-scale transmission arteries of ±500 kV Debao DC and ±800 kV Fufeng DC built and put into operation one after another, five large-scale channels for the development of southwest hydropower have gradually emerged, and the world’s most advanced technologies have been applied in the power grid. And embodiment. From the southwest load end, Sichuan Power Grid has become a hub platform linking Central China, East China and Northwest China Power Grid.
In the face of challenges, the company always insists on safe production as an overriding core work to ensure the safe and stable operation of ultra-high voltage power grids.
The first is to strictly implement the safety responsibility system, improve the three-level hidden troubles inspection and management work mechanism of the company, the center (converter station) and the team, and reinforce the safety basic management work. By continuously strengthening the basic management of production safety, establishing a sound safety production system, and gradually solidifying good practices and experience, the work is constantly institutionalized, standardized, and streamlined. However, "to ensure that no personal equipment safety accidents occur."
The second is to carry out targeted special activities. Combining the company's safe production practices, we will vigorously carry out special activities such as “acquisition of safety, anti-violation, and promotion of safetyâ€, “transmission line inspection and control, and other special activities, increase efforts to protect power facilities, and improve the linkage mechanism with relevant government departments to eliminate all kinds of Hidden accidents and defects ensure the safe and stable operation of ultra-high voltage power grids.
The third is to make full efforts to fight well and meet summer peaks and meet peaks and winters to fight against tough battles. We must formulate work plans, improve various emergency plans, and carry out drills to prevent mountain floods, mudslides, and snow and ice freezing disasters to ensure that all kinds of work are well prepared. The response is timely and the disposition is effective. The company stole the Bopo three-fourth line in 29 hours, and continued to fight for 39 hours. It tried its best to get through the 500 kV Debao DC line and created the shortest time record for repair of similar faults.
The fourth is to focus on science and technology, and strive to promote the construction of information technology in power grid management. According to the characteristics of the ultra-high voltage power grid equipment, the "on-line ice monitoring system", "GPS line inspection and field monitoring system for transmission lines", "assisted inspection system for unmanned aircraft", "intelligent robot for transmission line inspection", and "substation The opening and application of technology projects such as the remote video surveillance system and the linkage of the “anti-theft alarm system†took the lead in implementing the “2+6†operating mode and realized “centralized monitoring and partition operationâ€.
Sichuan Chao (Special) Company has always insisted on safety analysis and timely control of safety production. In the process of power grid construction and transformation, they fully implement standardization operations, ensure that all work responsibilities are up to the people and the work flow is in place, effectively improving the on-site safety management level.
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