2020-07-22

SF6 circuit breaker rated gas pressure is 0.6MPa, and with high pressure (low) alarm, and high pressure (low) blocking circuit breaker action. The gas pressure will change with the temperature, in order not to affect the operation of the equipment, the current pressure gauges are equipped with temperature compensation function; Gas pressure due to temperature changes reflected on the pressure gauge is very slight. The alarm and lockout contacts are on the pressure gauge.

2020-07-20

SF6 is a strongly electronegative gas, and its molecules are easy to adsorb free electrons and form heavy negative ions, weakening the collision ionization process in the gas, so its electrical insulation strength is very high, about 2.5 times the strength of air insulation in a uniform electric field. SF6 gas has a thermal decomposition peak at t≈2000K, so when the AC arc current crosses zero, SF6 has a much stronger cooling effect on the arc than air, and its arc extinguishing ability is about

2020-07-20

Nitrogen (N2) is a colorless and odorless gas at room temperature and pressure. Nitrogen in the air is 78 to 80 percent. Molecular weight 28.0134, boiling point 1 195.8 ℃. Insoluble in water. When the nitrogen content in the air increases (> 84%), oxygen in the air can be excluded, causing insufficient oxygen inhalation, people feel poor breathing, and there is a sense of suffocation. High concentration of nitrogen (> 90%) can cause headache, nausea, vomiting, chest tightness, chest pain, cyano

2020-07-16

When the SF6 gas leakage accident occurs, it can quickly deal with the accident, improve the efficiency and quality of the accident handling, establish an emergency rescue mechanism in emergency situations, ensure the safety and rapid evacuation of personnel, so as to minimize the possible injury to personnel and damage to mechanical and electrical equipment.

2020-07-15

The working principle of SF6 leak detector mainly depends on which kind of sensor is used for detection. The sensor types of SF6 leak detector are analyzed as follows:

2020-07-14

The global environmental protection situation is becoming more and more serious, and global warming is becoming more and more serious. Each of us has probably already tasted the consequences of global warming, and countries around the world are currently developing and implementing their own carbon dioxide emissions reduction plans in an attempt to "cool" the planet. Today, Weavers Xiaobian brings you an article by Mr. Lin Mengru, a scholar from Taiwan, on global carbon dioxide concentration and