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Longyuan Power Coastal Units Actively Responded to Typhoon In-Fa

PublishedTime:2021-07-26
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On July 25, this year's No. 6 Typhoon In-Fa landed in Zhoushan, Zhejiang Province and moved west by north. A large-scale continuous heavy rainfall and gale weather appeared in Zhejiang, Shanghai, Jiangsu, Shandong and other places, exerting great impact on the wind farms in coastal provinces of Longyuan Power. The Group immediately started the emergency plan, guided Zhejiang, Shanghai, Jiangsu, Jiangsu Offshore and Shandong five offshore companies and 21 wind farms to make emergency plans for typhoon landing in advance, so as to fully ensure the safe and stable operation of wind farms.

Zhejiang company held a video conference on the deployment of special work for typhoon prevention to mobilize the majority of Party members, cadres and workers to implement various typhoon and flood prevention measures, such as keeping on duty and on guard, arranging special personnel to pay close attention to the trend of typhoon, doing a good job in the monitoring of wind, rain and water conditions, strengthening the communication guarantee to ensure the timely and accurate transmission of all kinds of information; reinforcing the outdoor fences, cleaning the gravels of road culverts, installing door and window baffles, and ensuring the reliable fastening of equipment stay wire, wind hooks, box transformer doors, etc.; carrying out patrol inspection of power transmission and transformation equipment, wind turbine units, doors and windows of buildings and other equipment and facilities, taking a series of preventive measures such as rainproof water backfilling, preventing water inflow in the switch rooms, ensuring station power consumption, power consumption of waterlogging drainage equipment and cleaning of surrounding floating objects, and making corresponding on-site disposal plans according to the disasters inflicted by on-site typhoons and rainstorms.

Shanghai Company promptly implemented various defense measures in accordance with the emergency response plan. The company conducted safety inspections on fans and power transmission and transformation equipment in the wind farms, reinforced important outdoor equipment and facilities, and used flood control sandbags to reinforce and block the passages of equipment buildings. It also comprehensively checked and switched the site drainage system, dredged the sludge of cable layer, site drainage ditches and fan platforms to avoid ponding under adverse weather conditions. At present, all cadres and employees of the company have been in place for close inspection.

Jiangsu Offshore Company launched the Level II emergency plan for typhoon and flood prevention at the first time, issued the Notice on Doing a Good Job in Safety Production During the Transit of Typhoon In-Fa in advance, arranged emergency duty of employees, and did a good job in safety production during the transit of typhoon. The company required all wind farms to suspend all offshore operations at the time of typhoon, and strictly prohibited illegal command and risky operations for personal safety. The monitoring centers and all wind farms were required to focus on monitoring and protection of high-risk fans, and focus on yaw, pitch and other systems to ensure reliability. Focusing on typhoon prevention, lightning protection and waterlogging prevention, the company comprehensively checked the anti-leakage facilities, drainage facilities and lightning protection of buildings, cable trenches and outdoor electrical equipment, control cabinets and terminal boxes, and repaired and treated the buildings that might leak and the equipment with poor rain and lightning protection. It also put the portable generators on trial run and prepared standby drainage pumps, waterproof sandbags, emergency lights and other equipment for emergencies.

Jiangsu Company timely established an emergency leading group for typhoon and flood prevention, organized each section to hold a mobilization meeting to take prevention measures, put work priority for typhoon and flood prevention and did mental preparation for emergencies. The company required each section and monitoring center of Nantong regional maintenance center to keep around clock duty system, make emergency duty scheduling, pay close attention to the real-time trend of typhoon, send early warning information in time and prepare for emergency action. It organized special inspection for typhoon prevention and flood control by focusing on the special inspection and treatment of production materials such as attachments on the top of buildings in the substation, drainage system, cable layers, fan and box transformer drainage ditches, overhead line iron towers, box transformer doors, outdoor electrical cabinet doors and vehicles, so as to eliminate hidden dangers in time and ensure that all equipment could pass the typhoon period safely. In addition, the company analyzed the historical alarm information of the fans, found out the fans with weak links in the pitch backup power supply system and braking system, and rectified and eliminated the defects in advance to ensure that each fan could withstand the typhoon attack.

Shandong Company established a special inspection and rectification team for potential safety hazards according to the characteristics of typhoon weather, and further strengthened the investigation and treatment of potential hazards in equipment rooms, SVG rooms, relay protection rooms, poles and towers and line in view of the special situation that some wind farms are located in mountainous areas, and checked whether there were bird's nests, branches and other foreign matters in the main tower lines so as to minimize the probability of security incidents. It improved the mechanism for the prevention and control of heavy weather, strengthened weather early warning, regularly published the latest weather information in the work safety group, smoothed the information channels for employees, and provided a strong guarantee for the performance of duties by employees at all posts. The company also actively carried out special emergency drills for typhoon and flood prevention, checked whether the emergency materials for flood and typhoon prevention were sufficient, supplemented the procurement and leased high-power pumps, inspected the operation of standby power supply, and refined and decomposed the division of responsibilities for flood and typhoon prevention of employees at each post to effectively enhance the emergency disposal ability of front-line employees. It also established a special working group for index analysis to conduct a comprehensive "physical examination" on the operation status of wind turbine units and various electrical equipment in the station, timely eliminated potential safety hazards of equipment to ensure that wind turbine generators and various power generation equipment could withstand the severe test of typhoon.

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