HD-PLR Plasma Lightning Rejector
I.HD-PLR Overview
The HD-PLR Plasma Lightning Rejector adopts internationally advanced lightning protection theories.By utilizing the"quasi-tip effect"of its multi-pin array,it ensures that the protected target remains within a relatively low(and therefore safe)electric field.Simultaneously,it effectively neutralizes charges of opposite polarity in thunderclouds and promptly disrupts the lightning leader.This mechanism eliminates lightning strikes within the key protection zone,thereby guaranteeing the safety of both equipment and personnel.
II.Features and Advantages of HD-PLR
1.Simple and robust structure,ensuring solid reliability;
2.Compared with active plasma generators equipped with power electronic components,it offers superior weather resistance and a longer service life;
3.Unlike the passive lightning interception function of traditional lightning rods,the HD-PLR Plasma Lightning Rejector is a non-intercepting device capable of effectively eliminating lightning strikes within its protected area;
4.Highly suitable for mobile targets and hard-to-reach elevated structures;
5.Operates adaptively under the excitation of thundercloud electric fields,requiring no lightning warning systems for regulation or control;
6.Can be configured with data-storage-capable lightning warning devices to monitor real-time alerts and historical lightning data,and can seamlessly integrate with online monitoring systems;
7.The plasma emitted by the PLR contains positive ions that rise to help purify the air,while negative ions descend to promote biological health.
III.Lightning Protection Mechanism of HD-PLR
1.Utilizing the"quasi-tip effect"of its multi-pin array,the electric field strength induced on the PLR by the thundercloud is dozens of times higher than that of the protected target,yet significantly lower than that of traditional lightning rods.This ensures the protected target remains within a relatively low and safe electric field.Meanwhile,it attracts and gathers charges from the base of the thundercloud to efficiently neutralize the plasma generated by the strong ionization structure through recombination.
2.Its built-in high-field-strength discharge structure enables strong ionization discharge without being suppressed by the self-shielding effect typically seen in the multi-pin arrays of conventional external dissipators.Excited by the thundercloud's electric field,it generates a dissipation charge exceeding 30 mC/s.This effectively neutralizes the attracted cloud-to-ground charges(±Q),capable of neutralizing up to 9 C of cloud-to-ground charge within 5 minutes.Consequently,the equivalent plate capacitor between the cloud and ground acts as a leaky"bad capacitor,"which effectively inhibits the formation of lightning leaders and prevents subsequent induced lightning strikes.In other words,no lightning strikes will form under the entire simulated single-thundercloud plate.
3.Even under the strongest electric field interference caused by a single lightning rod with a tip effect that amplifies the field strength by 1,000 times,it can still achieve a protection angle greater than 84°under sea-level conditions where strong ionization is normally difficult to sustain.
IV.Advantages of HD-PLR
1.No Power Supply Required:
Utilizing the excitation of thundercloud electric fields,its multiple discharge units achieve strong ionization under both low and high induced field strengths.The plasma generated by a single passive PLR is 500 times that of a 1 kVA active generator.It dissipates charges at a rate of over 30 mC/s(30 mA)and achieves a protection angle greater than 84°(equivalent to 10 times the relative height difference H of the installation).
2.No Low-Resistance Grounding Needed:
Since the PLR disperses milliamp-level dissipation currents to counter lightning and does not intercept massive lightning currents,it does not require low-resistance grounding.It can operate normally and provide effective lightning protection even with a grounding resistance as high as several kiloohms(kΩ).
3.Effective Service Life of Up to 40 Years:
Featuring a simple yet robust structure,the PLR is reliable,economical,and highly weather-resistant.With an effective service life exceeding 40 years,it offers maintenance-free operation throughout its lifespan,delivering low application costs and exceptional cost-effectiveness.
V.Technical Specifications of HD-PLR
1.Emission Diameter of Pin Array:Φ0.6m~Φ2m
2.Number of Main/Sub Pin Arrays:13/(13×7)
3.Weight of PLR Body:3kg~12kg
4.Lightning Protection Angle/Protection Radius:84°/10×H
5.Service Life:＞40 years/30 years(in heavy salt-pollution environments)
6.Optional Basalt Fiber Telescopic Mast for Mobile Targets:Retracted height:1.9m;Extended height:9m~16m;Weight:19kg~36kg.
VI.Application Scope of HD-PLR
The device is suitable for key protection areas with stringent safety requirements,including residential villas,forestry zones,historical monuments,laboratories,industrial sites,substations,transmission lines,wind turbines in the new energy sector,and national defense territories.Additionally,it can be utilized to protect natural resources and prevent forest fires.
VII.Application Cases of HD-PLR
PLR protection for the earthquake relief tent area at a racecourse in Yushu Prefecture,a severe lightning region with 60,000 lightning strikes per square kilometer.
Lightning protection for broadcasting and television transmission towers in the severe lightning areas of the East China Sea.
Lightning protection for communication base stations at Dahuofang Reservoir in Fushun.
Lightning protection for a 250-meter-long wave transmission tower in coastal severe lightning regions.
Lightning protection for mobile communication base stations in severe lightning areas on the snow-covered plateau.
PLR application at Bali International Airport in Indonesia,a severe lightning region.
Lightning protection for an observation and communication station of the Navy.
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