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Recently, the project "Key Technologies and Applications of Lightning Protection in Power Grids" led by Nari Group (State Grid Electric Power Research Institute) won the second prize of 2015 National Science and Technology Progress Award
.
This technology is of great significance to the rail industry, it will reduce the frequency of lightning "stopping" trains, bringing considerable economic benefits
.
Trains are not afraid of heavy rain and fog, but they and lightning have always been "old enemies"
.
It is not the train itself that is afraid of lightning, but the power grid
that supports the operation of the train.
In China, high-speed rail power grids are struck by lightning and stop accidents from time to time: in 2009, a train from Shanghai to Hangzhou was delayed by two hours due to lightning strikes on the power grid; On July 10, 2011, a thunderstorm in Shandong Province caused the Beijing-Shanghai high-speed railway catenary to be disconnected by "lightning strikes", resulting in a long-term power
outage.
In response to the problem that trains are afraid of lightning, Nari Group (State Grid Electric Power Research Institute) led a number of research projects on "Key Technologies and Applications of Lightning Protection in Power Grids", which lasted for 12 years
.
China's lightning basic data is lacking, lightning risk assessment methods are not perfect, lightning strike differentiated prevention technology is missing, and lightning strike fault handling efficiency is low
.
Through independent innovation, the project team has developed four key technologies in lightning and ground lightning monitoring, lightning strike discharge motor management, lightning strike differentiated protection and lightning fault monitoring, and after evaluation, the overall technical level has reached the international leading level, and some technologies have also filled the international gap
.
It is understood that the power grid lightning protection technology can be widely used in lightning damage prevention and control in electric power, railway, petrochemical and other industries
.
In recent years, with the practical application of this batch of technologies, from 2011 to 2014, the lightning failure rate of the transmission system of the State Grid Corporation of China decreased by 50% compared with the average value in 2010.
The lightning failure rate of Beijing-Shanghai high-speed railway and urban rail transit has been reduced by more than 70%, and the cumulative indirect benefits have exceeded 10 billion yuan
.
Recently, the project "Key Technologies and Applications of Lightning Protection in Power Grids" led by Nari Group (State Grid Electric Power Research Institute) won the second prize of 2015 National Science and Technology Progress Award
.
This technology is of great significance to the rail industry, it will reduce the frequency of lightning "stopping" trains, bringing considerable economic benefits
.
Trains are not afraid of heavy rain and fog, but they and lightning have always been "old enemies"
.
It is not the train itself that is afraid of lightning, but the power grid
that supports the operation of the train.
In China, high-speed rail power grids are struck by lightning and stop accidents from time to time: in 2009, a train from Shanghai to Hangzhou was delayed by two hours due to lightning strikes on the power grid; On July 10, 2011, a thunderstorm in Shandong Province caused the Beijing-Shanghai high-speed railway catenary to be disconnected by "lightning strikes", resulting in a long-term power
outage.
In response to the problem that trains are afraid of lightning, Nari Group (State Grid Electric Power Research Institute) led a number of research projects on "Key Technologies and Applications of Lightning Protection in Power Grids", which lasted for 12 years
.
China's lightning basic data is lacking, lightning risk assessment methods are not perfect, lightning strike differentiated prevention technology is missing, and lightning strike fault handling efficiency is low
.
Through independent innovation, the project team has developed four key technologies in lightning and ground lightning monitoring, lightning strike discharge motor management, lightning strike differentiated protection and lightning fault monitoring, and after evaluation, the overall technical level has reached the international leading level, and some technologies have also filled the international gap
.
It is understood that the power grid lightning protection technology can be widely used in lightning damage prevention and control in electric power, railway, petrochemical and other industries
.
In recent years, with the practical application of this batch of technologies, from 2011 to 2014, the lightning failure rate of the transmission system of the State Grid Corporation of China decreased by 50% compared with the average value in 2010.
The lightning failure rate of Beijing-Shanghai high-speed railway and urban rail transit has been reduced by more than 70%, and the cumulative indirect benefits have exceeded 10 billion yuan
.
