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On April 13, the three UHVDC annual overhauls organized and implemented by Hunan Electric Power Maintenance Company were successfully completed, and the company successfully put into operation the world's first batch of UHV line arresters during this maintenance period, comprehensively building an UHV disaster prevention system
.
The world's first set of UHV line arresters put into operation this time is installed on the ± 800 kV Binjin DC line
.
Due to the high terrain and long span distance, UHV transmission lines are also more likely to be affected by lightning
strikes.
Compared with the original lightning protection measures of UHV lines, the UHVDC line arrester installed this time has better lightning protection effect in mountainous areas, areas with dense minefall and areas with high soil resistivity, and its lightning protection disaster range is wider, which has less impact on the operation of UHV transmission lines, which can effectively ensure that UHVDC is protected from lightning interference during operation and further improve the operation reliability
of UHV transmission lines 。 As the national west-to-east power transmission of the aorta of the ±800 Fufeng, Jinsu, Binjin three major UHV, Binjin DC rated transmission power is the highest, choose to install the world's first set of UHV line arrester in Binjin DC, which has important demonstration significance
for UHV lines.
It is reported that during the maintenance period, a total of 6 sets of UHVDC line lightning protection devices were put into use, all of which were distributed in mountains, rivers and other areas vulnerable to lightning
strikes.
Together with the world's first UHV line wildfire prevention device previously put into operation, the device enables UHV power grid transmission to achieve all-round strong defense
against disasters such as lightning strikes, wildfires, pollution flashes, and broken towers covered by ice.
On April 13, the three UHVDC annual overhauls organized and implemented by Hunan Electric Power Maintenance Company were successfully completed, and the company successfully put into operation the world's first batch of UHV line arresters during this maintenance period, comprehensively building an UHV disaster prevention system
.
The world's first set of UHV line arresters put into operation this time is installed on the ± 800 kV Binjin DC line
.
Due to the high terrain and long span distance, UHV transmission lines are also more likely to be affected by lightning
strikes.
Compared with the original lightning protection measures of UHV lines, the UHVDC line arrester installed this time has better lightning protection effect in mountainous areas, areas with dense minefall and areas with high soil resistivity, and its lightning protection disaster range is wider, which has less impact on the operation of UHV transmission lines, which can effectively ensure that UHVDC is protected from lightning interference during operation and further improve the operation reliability
of UHV transmission lines 。 As the national west-to-east power transmission of the aorta of the ±800 Fufeng, Jinsu, Binjin three major UHV, Binjin DC rated transmission power is the highest, choose to install the world's first set of UHV line arrester in Binjin DC, which has important demonstration significance
for UHV lines.
It is reported that during the maintenance period, a total of 6 sets of UHVDC line lightning protection devices were put into use, all of which were distributed in mountains, rivers and other areas vulnerable to lightning
strikes.
Together with the world's first UHV line wildfire prevention device previously put into operation, the device enables UHV power grid transmission to achieve all-round strong defense
against disasters such as lightning strikes, wildfires, pollution flashes, and broken towers covered by ice.
