China News Service, Hangzhou, October 1st (Zhang Bin and Hu Ding Yu Qiuli) In the context of "machine substitution", this year's National Day and Mid-Autumn Festival, some electric power workers in Hangzhou no longer "drill" cables as usual Tunnel: Under the background of the State Grid Hangzhou Power Supply Company promoting the construction of cable smart lines, personnel costs, vehicle costs, and inspection rates have been significantly reduced.
Not only has it changed the "draft" of duty, intelligence has also brought a "dividend" that reduces costs and increases efficiency.
The staff on duty are patrolling through the smart platform.
Photo courtesy of State Grid Hangzhou Power Supply Company
On October 1, Li Fuping, a cable inspector from the State Grid Hangzhou Power Supply Company, came to the duty room and logged into the high-voltage cable smart line management platform to view the grounding circulation of the cable line, the infrared temperature measurement of the cable terminal, and the partial discharge of the cable joint. To confirm the running status of the cable line.
Subsequently, through the cable tunnel environment monitoring data, video surveillance, etc., he carefully analyzed every detail of the operation status in the tunnel, and fully understood the current situation of the cable tunnel.
At a distance of 15 kilometers from the tunnel, Li Fuping uses state-aware equipment, 5G intelligent inspection robots and other advanced technologies to instantly see the "live scenes" of cables and tunnels in all directions-this is a brand new development brought by the construction of cable smart lines Work changes.
The staff on duty are patrolling through the smart platform.
Photo courtesy of State Grid Hangzhou Power Supply Company
"In the past, our operation and maintenance personnel needed to go to the site to perform live-line detection of the cable line. Generally, 3 people can complete it in 1 hour. In some cases, it takes two days to complete." Li Fuping introduced, "Now, after the construction of the cable smart line is completed, we Click the mouse in the duty room, and after a few seconds, you will be able to grasp the operating conditions of the cables and tunnels through monitoring data and video images."
According to reports, as the first batch of intelligently transformed cable lines in the country, Hangzhou "Zhuxing 2P23 cable section" pioneered the application of 1278 intelligent sensing devices in 69 categories, such as 5G intelligent inspection robots and intelligent manhole covers, to achieve multi-scenario autonomous early warning for the first time. Disposal function.
Prior to this, once the transmission line trips, the staff of the transmission inspection center and the cable inspection center need to go to the site to inspect, confirm, and organize emergency repairs.
Now, after installing fault locating devices at both ends of the cable line, the staff can use real-time data collection to carry out accurate data analysis, and the cable fault can be quickly located, and only one person needs to go to the site for emergency repairs.
Not only that, the platform can replace labor, quickly and automatically prepare standardized emergency repair plans, issue lists of manpower and material resources, realize smart emergency repairs, and greatly improve work efficiency.
"Through the high-voltage cable intelligent line management platform, a 3.8-kilometer long-distance inspection of 3 tunnels in the Pan-Riverside area can be completed in one morning, real-time operating data of 29 lines, the status of channel protection against external damage, and video inspections of 3 dangerous points. This National Day holiday, we Realized intelligent power protection." Li Fuping said.
According to reports, as a demonstration area of Zhejiang power transmission cable smart lines, Hangzhou Pan Binjiang area has completed the installation of equipment for cable line grounding box circulation monitoring and hybrid line fault location, which has promoted a reduction of 85% in personnel costs and 80% in vehicle costs. The personnel inspection rate dropped by 85%.
According to the State Grid Hangzhou Power Supply Company, in the next step, it will continue to promote the construction of high-voltage cable smart lines and demonstration areas, strengthen the in-depth application of key technologies such as digital transformation, digital twins, and holographic perception in this field, and promote the integration of multiple energy in the form of the Internet of Energy. The construction of flexible power grids has been implemented.
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