Recently, Thua Thien Hue Power Company (Thua Thien Hue PC) has applied many technological solutions in the operation, maintenance and maintenance of the power grid system.

Method of using insulated forklifts in repairing and maintaining the power grid system of Thua Thien Hue PC

According to Mr. Huynh The Quoc - Team Leader of Thua Thien Hue PC Hotline Team, currently to replace the Recloser, LBS almost has to cut off power because the connection structure at the Recloser is very complicated, the load current must always be maintained, and the removal Lowering the Recloser is very cumbersome, the phase-to-phase distance is very close and very difficult to access, especially when carrying out repairs on 22kV energized lines; When repairing in locations where specialized vehicles cannot access, it is almost impossible to carry out hot repair work. Therefore, to limit the time of power outages in the maintenance and upkeep of the power grid, connecting new power grids using the hotline method without power outages is an urgent requirement and there needs to be a solution to improve it. Highly reliable power supply.

Through research, consultation, and practical training, the Thua Thien Hue PC hotline team has successfully applied the solution to replace Recloser and LBS without cutting off power, connecting by using insulated poles and insulated racks at Specialized vehicle locations that cannot be accessed on the actual operating grid (replace Rec 471/21A Vy Da, install LBS at location 21/3 22kV transmission line 478-E6 to Thuy Van, connect to Ly substation Nam De with 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 practices, contributing to improving electricity supply reliability. , reduce power outage time when maintaining, servicing, and building new power grids; Increase electricity supply output, do not interrupt electricity supply to customers, and improve the reputation of the electricity industry.

Mr. Hoang Ngoc Hoai Quang - Deputy Director of Thua Thien Hue PC said: Thua Thien Hue PC is the first unit in the Central region to successfully apply the hot electrical repair method on insulated racks and insulated poles. The advantage of this method is that it allows workers to access and repair, especially connecting new power grids, or handling damaged points in difficult locations, places where specialized vehicles cannot reach. accessible. Thereby, contributing to quick and timely handling when incidents occur. However, to do this job well requires workers to have skills and use tools proficiently, Mr. Quang shared.

“With that efficiency, in the 2019 plan, the Central Power Corporation (EVNCPC) invests in Thua Thien Hue PC an additional specialized vehicle for hot electricity repair and a rack system. At the same time, the unit also plans to train a team of workers from 9 people to 16 people to meet 2 hotline repair teams, meet the needs of decoration, construction without power cuts, minimizing power cut time. of customers when troubleshooting problems," Mr. Quang added.

Currently, the average power outage time of Thua Thien Hue PC is about 1,600 minutes/customer/year. However, with the roadmap to 2020, customer power outages will be about 280/minute/year, especially in the City area. Hue 100/minute/year is a big challenge for the unit. The successful application of the method of using insulated poles and insulated racks at locations inaccessible to specialized vehicles is a new step in reducing customers' power outage time and improving the evaluation index. on the competitiveness of the electricity industry in general and Thua Thien Hue PC in particular.

According to: Industry and Trade Newspaper