News
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The Past Life and Present Life of Electric Power
Mobile phones, computers, refrigerators, air conditioners, washing machines…… Electrical appliances are full of human production and life. Do you know the past life and this life of electricity, as the most important part of it? In 1660, Garek of Madelberg invented the first friction motor. In ...Read more -
Why do you put pebbles under the transformer?
We can often see that there are a lot of pebbles under some transformers, so what on earth are these pebbles for? Is it just for beauty? Our common transformers are divided into dry-type transformer and oil-immersed transformer. Oil-immersed transformer uses oil as the main insulation means of t...Read more -
Youth Day | The more you struggle, the more youthful you become. 青年节 | 越奋斗 越青春
Over the past century, the May 4th spirit, with patriotism, progress, democracy and science as its connotation, has long been integrated into the national blood and become an important spiritual pillar on the road of national rejuvenation after being inherited, carried forward and accumulated fr...Read more -
Happy International Labour Day!
向劳动者致敬 每一滴汗水都折射太阳的光芒， 每一份付出都照亮梦想的天空。 尊重每一份职业，也感谢每一次坚守。 五一劳动节快乐！ Pay tribute to the labourers! Every drop of sweat reflects the light of the sun, Every effort illuminates the sky of dreams. Respect every profession, and thank you for stic...Read more -
Electric energy meter | Why is the automatic tripping? Function of ammeter circuit breaker
On the basis of ensuring the basic electricity consumption measurement, in order to ensure the safety, the intelligent watt-hour meter is not only manufactured in strict accordance with national standards, using qualified materials and technology, but also alarm and power-off functions. Smart met...Read more -
World Intellectual Property Day
创新是引领发展的第一动力，保护知识产权就是保护创新。 Innovation is the first driving force leading development, and the protection of intellectual property rights is the protection of innovation.Read more -
Canton Fair I Focus on JONCHN Exhibition being Under Way
Since April 15, the 133rd Canton Fair is in full swing. The China Canton Fair, known as “the first exhibition in China”, is the largest in history, with an all-time high in exhibition area and the number of exhibitors. The number of exhibitors at the Canton Fair reached 35000, with a ...Read more -
EEP Mr. Assefa visited JONCHN Group
On April 12, Mr. Assefa, a senior leader of Ethiopia Electric Power Company, visited JONCHN Group Company for inspection and exchange on deepening cooperation, accompanied by Huang Danyan,general manager of Overseas Business Department, and other company leaders. Mr.Assefa visited the headquarter...Read more -
Cordially invited | JONCHN looks forward to your arrival at the 133rd Canton Fair in 2023.
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JONCHN Electric C-GIS Inflatable Cabinet Technology
C-GIS combines SF6 insulation technology with air insulated metal enclosed switchgear manufacturing technology to produce a metal box sealed switchgear. C-GIS for short. The commonly known inflatable cabinet often refers to the general term of C-GIS and inflatable ring-network cabinet. GIS is a c...Read more -
What is the function of the voltage regulator?
With the rapid development of society, the use of electrical equipment is increasing day by day.However, due to the aging and lagging development of power transmission and distribution facilities, poor design and insufficient power supply, the voltage of terminal users is too low, while the volta...Read more -
How to choose circuit breaker (air switch) type C and type D?
How to choose the type C and D of the circuit breaker (air switch)? There is usually a distribution box somewhere in our home, and a corresponding switch will be installed in the distribution box. There are mainly two kinds of switches installed in the distribution box: the first is the ordinary ...Read more