Guangxi Rongan Xiehe Lion Ridge Wind Farm Plasma Lightning Protection Rectification Project Case
Passive strong ionisation plasma lightning theory(HD-PLR)is a major breakthrough in the protection of direct lightning,a change since the invention of the American scientist Franklin lightning rod since the continuation of the 260-year-long tradition of‘flash’to ionisation instead of flash,so that the process of neutralisation of the charge occurs in the air.
Compared with flashover devices,HD-PLR protection angle is larger,wider range of protection,the lightning resistance requirements of the grounding network is lower,and can eliminate the fire hazards caused by lightning;compared with other traditional lightning muffler,repulsor(including oil tanks,such as huge spherical metal structure),HD-PLR is not subject to self-shielding effect,and neutralisation and thundercloud charge is more efficient,the role of a greater range,and will not lead the lightning to other places!The HD-PLR can be installed at high points,making the surrounding vast low-lying areas free from direct lightning strikes.
In the field of power system and new energy generation,PLR is of great significance for the operation and maintenance of overhead transmission lines and wind farm collector lines.When HD-PLR is installed on the top of the power tower,the uneven electric field induced by itself can well protect the metal conductor from being easily struck by lightning,thus avoiding the formation of over-voltage and over-current in the line.HD-PLR disperses a high concentration of anisotropic charge to the sky under the excitation of thundercloud charge by itself,completing the strong and effective neutralisation in the air,destroying the conditions of inducing direct lightning and avoiding the occurrence of tripping accidents.
In some lightning protection transformation project,according to the local conditions,appropriate and reasonable use of HD-PLR can play a role in the bottom of the payroll,fundamentally eliminating the possibility of backlash tripping and other accidents,so that the project cost overall significant reduction.The following shares a HD-PLR in the wind farm integrated lightning protection rectification project application case.
Guangxi Lion Ridge Wind,lightning strikes in the past three years caused more accidents,and increased year by year.Collector line tower lightning arrester was struck through the explosion,a section of the line into the main circuit of the branch of the tower frequently attracted lightning.Wind farms are located in complex environments,with large height differences,many underground stones,large soil resistivity,and insufficient channels for discharging lightning currents,which can easily cause counter-strikes.
The expert team of Oumaan Technology Group-Heilongjiang Hengdian Lightning Protection Engineering Co.,Ltd.carried out one by one investigation on different tower's flashover condition,grounding environment,lightning arrester's wiring,line's insulation strength and other factors at the project site,and comprehensively analysed the reasons for the tripping by starting from the level of charge neutralisation,and finally took the way of sectional treatment.
Firstly,a set of passive strong ionisation plasma anti-lightning device is installed on the top of the tower located at the regional high point,which destroys the conditions of lightning formation,eliminates direct lightning in the local area,and prevents lightning strikes from causing multiple tripping fundamentally;meanwhile,the ground network of the 8 towers of the whole branch line(the tower at the branch is not included)is transformed for impact resistance,and the application of flexible grounding technology greatly improves the ability of the ground network to neutralise the anomalous charge under the impact of lightning at a high frequency and effectively solves the problem of the instantaneous rise of the ground potential caused by the The problem of impact tripping caused by instantaneous increase of ground potential is effectively solved.
In addition,the composite insulators of the above lines were replaced with glass insulators with better insulation,while the installation method and wiring process of the lightning arrester were changed,and lightning counters were installed to verify the rectification effect,and lastly,the HD-LDL lightning online monitoring and warning system was matched to the lines to monitor lightning strikes in real time and to reduce the cost of manual operation and maintenance.
Oumaan Technology Group(Hengdian Lightning Protection),over the years,has been committed to the research of lightning protection and grounding technology,and has implemented a large number of lightning protection and grounding renovation projects in power systems and new energy power stations across the country,achieving fruitful results.We have our own team of experts,construction teams and production bases,specialising in solving all kinds of lightning protection related problems,including but not limited to:high grounding resistance,transmission line lightning tripped,sustained lightning strikes burned equipment,poor corrosion of the environment is serious,wet and dirty insulation flashover,the cause of the accident is difficult to investigate......
As long as the lightning protection related services,Oumaan Technology Group can provide.Want to get more related content,welcome to call the hotline to learn more!
