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 Peskov, the Russian president’s press secretary, described European politicians as pitiable persons at a press conference o
January 31, 2026
Dmitri Peskov, the Russian president’s press secretary, described European politicians as pitiable persons at a press conference o
A happy event of moving into new houses has taken place at rural villages in Sinchon and Pongchon counties of South Hwanghae
January 31, 2026
A happy event of moving into new houses has taken place at rural villages in Sinchon and Pongchon counties of South Hwanghae
On January 22, the US formally left the WHO. The US claimed that its decision to leave the WHO was a reflection of the
January 31, 2026
On January 22, the US formally left the WHO. The US claimed that its decision to leave the WHO was a reflection of the
Strategic plan based on long-cherished desire The respected General Secretary Kim Jong Un unveiled a grand blueprint for the
January 31, 2026
Strategic plan based on long-cherished desire The respected General Secretary Kim Jong Un unveiled a grand blueprint for the
The Sangwon Cement Complex carried out its national economic plan for January ahead of schedule. The complex conducted
January 31, 2026
The Sangwon Cement Complex carried out its national economic plan for January ahead of schedule. The complex conducted
Maria Zakharova, a spokeswoman for the Russian Foreign Ministry, criticized the French president for his provocative remarks at a
January 30, 2026
Maria Zakharova, a spokeswoman for the Russian Foreign Ministry, criticized the French president for his provocative remarks at a
A spokesman for the Chinese Ministry of Commerce condemned the inappropriate behaviour of the European Union at a news briefing on
January 30, 2026
A spokesman for the Chinese Ministry of Commerce condemned the inappropriate behaviour of the European Union at a news briefing on
The Jagang Provincial Forestry Management Bureau is making innovations in the winter timber production. Thanks to the devoted
January 30, 2026
The Jagang Provincial Forestry Management Bureau is making innovations in the winter timber production. Thanks to the devoted
North Hwanghae Province has remodelled the Unpha Cement Factory and the Unpha Corrugated Paper Mill. Their successful renovation
January 30, 2026
North Hwanghae Province has remodelled the Unpha Cement Factory and the Unpha Corrugated Paper Mill. Their successful renovation
A meeting to review the farming in 2025 took place at the Cabinet on January 27 and 28 through video conferencing. The meeting was
January 30, 2026
A meeting to review the farming in 2025 took place at the Cabinet on January 27 and 28 through video conferencing. The meeting was
Kim Jong Un, president of the State Affairs of the Democratic People’s Republic of Korea, was presented with the credentials of
January 30, 2026
Kim Jong Un, president of the State Affairs of the Democratic People’s Republic of Korea, was presented with the credentials of
Modern houses have appeared at the Churung Farm in Samchon County and the Sinhwanpho Farm in Jaeryong County of South Hwanghae
January 30, 2026
Modern houses have appeared at the Churung Farm in Samchon County and the Sinhwanpho Farm in Jaeryong County of South Hwanghae
A conference of the headquarters of the Central Committee of the Workers' Party of Korea was held on January 28 amid the
January 30, 2026
A conference of the headquarters of the Central Committee of the Workers' Party of Korea was held on January 28 amid the
The respected Comrade Kim Jong Un sent a birthday spread to Ju Chun Jo, a woman living in Neighbourhood Unit No. 12 of the
January 30, 2026
The respected Comrade Kim Jong Un sent a birthday spread to Ju Chun Jo, a woman living in Neighbourhood Unit No. 12 of the
Russian Foreign Minister Sergey Lavrov referred to the miserable plights of NATO, the European Union and the Organization for
January 29, 2026
Russian Foreign Minister Sergey Lavrov referred to the miserable plights of NATO, the European Union and the Organization for
The Canadian prime minister expressed opposition to the US’ threat to impose tariff in relation to the Greenland issue on January
January 29, 2026
The Canadian prime minister expressed opposition to the US’ threat to impose tariff in relation to the Greenland issue on January
Along with a new era of the Korean-style rural development, farms in Changdo and Thongchon counties of Kangwon Province are
January 29, 2026
Along with a new era of the Korean-style rural development, farms in Changdo and Thongchon counties of Kangwon Province are
North Hwanghae Province built the Kyongam Wood Processing Factory in Sariwon City. This modern wood processing base with equipment
January 29, 2026
North Hwanghae Province built the Kyongam Wood Processing Factory in Sariwon City. This modern wood processing base with equipment
The Missile Administration of the DPRK conducted a test-fire on January 27 to verify the effectiveness of a large-calibre multiple
January 28, 2026
The Missile Administration of the DPRK conducted a test-fire on January 27 to verify the effectiveness of a large-calibre multiple
Recently, the Laotian government set its major tasks for 2026. A government meeting took place in Vientiane, the capital of Laos,
January 28, 2026
Recently, the Laotian government set its major tasks for 2026. A government meeting took place in Vientiane, the capital of Laos,
More Articles
