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
The second-day sitting of the Ninth Congress of the Workers' Party of Korea took place on February 20. The congress will mark a
February 21, 2026
The second-day sitting of the Ninth Congress of the Workers' Party of Korea took place on February 20. The congress will mark a
Chinese Foreign Minister Wang Yi warned Japan against its moves to revive militarism in Munich, Germany, on February 14. Stressing
February 21, 2026
Chinese Foreign Minister Wang Yi warned Japan against its moves to revive militarism in Munich, Germany, on February 14. Stressing
The Ninth Congress of the Workers' Party of Korea received a congratulatory message from the Central Committee of the Communist
February 21, 2026
The Ninth Congress of the Workers' Party of Korea received a congratulatory message from the Central Committee of the Communist
The Central Committee of the Communist Party of China and the State Council of China held a meeting for lunar New Year greeting in
February 20, 2026
The Central Committee of the Communist Party of China and the State Council of China held a meeting for lunar New Year greeting in
All the Party members and other people in the DPRK, absolutely convinced that the Korean revolution would always emerge victorious
February 20, 2026
All the Party members and other people in the DPRK, absolutely convinced that the Korean revolution would always emerge victorious
Dear delegates,Today, we are opening the Ninth Congress of the Workers’ Party of Korea, which will set up another new milestone in
February 20, 2026
Dear delegates,Today, we are opening the Ninth Congress of the Workers’ Party of Korea, which will set up another new milestone in
The Norwegian prime minister criticized the US’ diplomatic and trade policy in his speech at the parliament on February 12.Europe’
February 20, 2026
The Norwegian prime minister criticized the US’ diplomatic and trade policy in his speech at the parliament on February 12.Europe’
A congratulatory group of the General Association of Koreans in China led by Chairwoman Choe Un Bok arrived in Pyongyang on
February 20, 2026
A congratulatory group of the General Association of Koreans in China led by Chairwoman Choe Un Bok arrived in Pyongyang on
The Third People's Art Festival in Celebration of February 16 came to an end. The festival performances were given at theatres and
February 20, 2026
The Third People's Art Festival in Celebration of February 16 came to an end. The festival performances were given at theatres and
Industrial design exhibitions on the theme of "New era of regional transformation and industrial design" in celebration of
February 20, 2026
Industrial design exhibitions on the theme of "New era of regional transformation and industrial design" in celebration of
A ceremony of great significance was held in the area of Hwasong in Pyongyang, well known as an epitome representing socialist
February 19, 2026
A ceremony of great significance was held in the area of Hwasong in Pyongyang, well known as an epitome representing socialist
The workers in the munitions industry of the DPRK are providing a sure guarantee for a continuous development and radical dramatic
February 19, 2026
The workers in the munitions industry of the DPRK are providing a sure guarantee for a continuous development and radical dramatic
Comrades,The workers in the munitions industry have prepared the most valuable present for a glorious congress of the Workers’ Par
February 19, 2026
Comrades,The workers in the munitions industry have prepared the most valuable present for a glorious congress of the Workers’ Par
Soldier-builders and youth shock brigade members, who are spending significant days in Pyongyang after building an ideal farm town
February 19, 2026
Soldier-builders and youth shock brigade members, who are spending significant days in Pyongyang after building an ideal farm town
Performances of participants in the Third People's Art Festival were given in different parts of the country on February 16 to
February 19, 2026
Performances of participants in the Third People's Art Festival were given in different parts of the country on February 16 to
There was a significant ceremony ahead of the opening of the Ninth Congress of the Workers' Party of Korea all the Party members
February 19, 2026
There was a significant ceremony ahead of the opening of the Ninth Congress of the Workers' Party of Korea all the Party members
Delegates to the Ninth Congress of the Workers' Party of Korea visited the Kumsusan Palace of the Sun where President Kim Il Sung
February 19, 2026
Delegates to the Ninth Congress of the Workers' Party of Korea visited the Kumsusan Palace of the Sun where President Kim Il Sung
The respected Comrade Kim Jong Un received congratulatory messages from organizations and bodies of the General Association of
February 19, 2026
The respected Comrade Kim Jong Un received congratulatory messages from organizations and bodies of the General Association of
The Russian permanent representative to the United Nations criticized Western countries for abusing the UNSC in putting pressure
February 18, 2026
The Russian permanent representative to the United Nations criticized Western countries for abusing the UNSC in putting pressure
A spokesman for the Chinese Foreign Ministry denounced Japan for not honestly and sincerely approaching its history of aggression,
February 18, 2026
A spokesman for the Chinese Foreign Ministry denounced Japan for not honestly and sincerely approaching its history of aggression,
More Articles
