The High-Tech Research & Development Centre of Kim Il Sung University has recently developed 6kV and 10kV zinc oxide arresters with effective protection against overvoltage.
As a technical power control device to prevent damage from thunderbolt or impulse-wave voltage, the lightning arrester has a wide application.
Members of the electronic materials research group including Mun Chol Ho, PhD, buckled down to the research into the fourth-generation nonlinear resistance, an essential component of arrester, in order to develop a new one that suits the specific conditions of the country.
They deepened the research as they focused on reproducibility while meeting the technical indices conflicting with each other in the making of semiconductor ceramics.
In the course of this, they found out a new materials composition method of doubling the nonlinear zinc oxide resistance and established a technology of miniaturizing and lightening the arrester by making the particles smaller.
The new type of arrester which is less than half the size, weight and manufacturing cost as compared to the previous arresters has scientifically proved economical through the trial introduction and state certification.
“The application of 6kV zinc oxide arrester to our substation has remarkably reduced the rate of accident of peripheral electric equipment caused by thunderbolt as compared to previously and also improved the operational safety in the relevant voltage system,” said Kim Pyong Su, director of the Jongju City Power Distribution Station, North Phyongan Province.
More From Pyongyang Times
Dmitri Medvedev, vice-chairman of the Security Council of Russia, posted an article on an SNS on January 12 to deride the US’ atte
January 21, 2026
Dmitri Medvedev, vice-chairman of the Security Council of Russia, posted an article on an SNS on January 12 to deride the US’ atte
Russia decided to deport a diplomat of the British embassy in the country. On January 15, the Russian Foreign Ministry called the
January 21, 2026
Russia decided to deport a diplomat of the British embassy in the country. On January 15, the Russian Foreign Ministry called the
Spectacular scenes of rural development have unfolded at several farms in Kangwon Province. Newly-built public and production
January 21, 2026
Spectacular scenes of rural development have unfolded at several farms in Kangwon Province. Newly-built public and production
The Academy of Forest Science has been built on a modern basis. The academy has all facilities and conditions, including an office
January 21, 2026
The Academy of Forest Science has been built on a modern basis. The academy has all facilities and conditions, including an office
Over the past five years since the Eighth Congress of the Workers’ Party of Korea, a new era of overall development has been
January 21, 2026
Over the past five years since the Eighth Congress of the Workers’ Party of Korea, a new era of overall development has been
A croaker pedigree farm has been built at the Ongjin West Sea Fish Farm. The pedigree farm has an office building, welfare
January 21, 2026
A croaker pedigree farm has been built at the Ongjin West Sea Fish Farm. The pedigree farm has an office building, welfare
The Central Committee of the Workers' Party of Korea sent a congratulatory message to the 14th Congress of the Communist Party of
January 21, 2026
The Central Committee of the Workers' Party of Korea sent a congratulatory message to the 14th Congress of the Communist Party of
The Ryongsong Machine Complex, where a flaming torch was lit to create the Chollima spirit in the new era, has turned into a
January 20, 2026
The Ryongsong Machine Complex, where a flaming torch was lit to create the Chollima spirit in the new era, has turned into a
Comrades,I express gratitude to the workers of Ryongsong, teachers and researchers from Kim Chaek University of Technology and Pyo
January 20, 2026
Comrades,I express gratitude to the workers of Ryongsong, teachers and researchers from Kim Chaek University of Technology and Pyo
The Mexican President said in a press conference on January 13 that her country would maintain a foreign policy based on equality
January 20, 2026
The Mexican President said in a press conference on January 13 that her country would maintain a foreign policy based on equality
The ideal socialist villages indicative of the Korean-style civilization of the countryside sprang up at the Chollisong Farm in
January 20, 2026
The ideal socialist villages indicative of the Korean-style civilization of the countryside sprang up at the Chollisong Farm in
The participants in the celebrations of the 80th founding anniversary of the Socialist Patriotic Youth League toured Pyongyang.
January 20, 2026
The participants in the celebrations of the 80th founding anniversary of the Socialist Patriotic Youth League toured Pyongyang.
At the end of last year, the Korean people greeted the second inauguration season in implementing the Regional Development 20×10
January 20, 2026
At the end of last year, the Korean people greeted the second inauguration season in implementing the Regional Development 20×10
The authorities of Greenland issued a statement on January 12 to reject the US' attempt to annex Greenland.As regards the fact tha
January 19, 2026
The authorities of Greenland issued a statement on January 12 to reject the US' attempt to annex Greenland.As regards the fact tha
Today, when the moves of the forces trying to realize their ambition for world domination are getting ever more undisguised,
January 19, 2026
Today, when the moves of the forces trying to realize their ambition for world domination are getting ever more undisguised,
The respected Comrade Kim Jong Un sent birthday spreads to Kim Sun Han, a woman centenarian living in Neighbourhood Unit No. 49,
January 19, 2026
The respected Comrade Kim Jong Un sent birthday spreads to Kim Sun Han, a woman centenarian living in Neighbourhood Unit No. 49,
Modern houses, symbolic of the era of the Workers' Party, have been built at the Usan Cotton Farm in Hanggu District and the
January 19, 2026
Modern houses, symbolic of the era of the Workers' Party, have been built at the Usan Cotton Farm in Hanggu District and the
The Jikha Atlantic Salmon Pedigree Farm was inaugurated in North Hamgyong Province. The construction of the pedigree farm with all
January 19, 2026
The Jikha Atlantic Salmon Pedigree Farm was inaugurated in North Hamgyong Province. The construction of the pedigree farm with all
On New Year’s Day ten years ago, the inauguration ceremony of the Sci-Tech Complex was held in splendour in the presence of the
January 19, 2026
On New Year’s Day ten years ago, the inauguration ceremony of the Sci-Tech Complex was held in splendour in the presence of the
Kim Jong Un, general secretary of the Workers' Party of Korea and president of the State Affairs of the Democratic People's
January 19, 2026
Kim Jong Un, general secretary of the Workers' Party of Korea and president of the State Affairs of the Democratic People's
More Articles
