Reduce power outage time by applying new technology
According to Mr. Huynh The Quoc – Team leader of Thua Thien Hue PC hotline team, LBS now has to cut off electricity almost because the connection structure at Recloser is very complicated, always have to maintain the load current and remove Lower Recloser is very cumbersome, the phase-phase distance is very close and very difficult to approach, especially when deploying repairs on 22kV power lines; When repairing at locations that the special-use vehicles cannot access, it is almost impossible to deploy hot repairs. Therefore, to limit the time of power outages in the maintenance and maintenance of the grid, connecting the new grid by the method of non-power outage hotline is an urgent requirement and needs to have solutions to raise High reliability of power supply.
Through research, reference, practical practice, Thua Thien Hue PC hotline team has successfully applied the alternative solution Recloser, LBS without power cut, connected by the method of using an insulated pole and insulated rack at locations for specialized vehicles not accessible on the actual operating grid (replacing Rec 471 / 21A Vy Da, installing LBS at 21/3 DMZ 22kV line 478-E6 to Thuy Van, connecting to substation Ly South Pole by pole and Platform …). The successful implementation of the above solution is a great effort of Thua Thien Hue PC with the goal of applying and maximizing modern and advanced technology into production practice, contributing to improving the reliability of power supply. , reduce power outage time during maintenance, new construction of the grid; improving power supply output, not interrupting the power supply to customers, enhancing the reputation of the electricity industry.
Mr. Hoang Ngoc Hoai Quang – Vice Director of PC Thua Thien Hue said: PC Thua Thien Hue is the first unit in the Central region to successfully apply the method of fixing hot electricity on insulating rack and pole. The advantage of this approach is that it allows workers to access, repair, especially connect new grids, or deal with damage points in difficult locations where specialized vehicles cannot reach. accessible. Thereby, contributing to quickly and promptly handling problems. However, in order to do this job well, it requires the workers to have skills and use tools properly, Mr. Quang shared.
“With that efficiency, the plan for 2019, Central Power Corporation (EVNCPC) will invest more for PC Thua Thien Hue with a specialized vehicle for hot electric repair and a rack system. also plans to train workers from 9 people to 16 people to meet 2 hotline repair teams, to meet the needs of supply, construction without power cuts, minimizing the time of cutting power of customers. troubleshooting “, Mr. Quang added.
Currently, the average power failure time of Thua Thien Hue PC is about 1,600 minutes / customer / year. However, with the roadmap to 2020, the power failure time of customers is about 280 / minute / year, only in the city area. Hue 100 / minute / year is not a small challenge for the unit. The successful application of the method of using the insulated pole and the insulated rack at the locations of inaccessible specialized vehicles is a new step in reducing power cut-off time for customers, improving evaluation index. on the competitiveness of the electricity industry in general and Thua Thien Hue PC in particular.
According to: The Industry and Trade Newspaper