Your Reilable Gas Insulated Switchgear Manufacturer in China

Advantages for a gas insulated switchgear

The SF gas commonly used in power switchgear was listed as one of the six greenhouse gases in the 1997 Kyoto Protocol, which has a significant impact on the greenhouse effect. In recent years, environmental protection construction has been increasingly on the agenda.The environmentally friendly construction of electrical equipment has also become particularly important. Therefore, it is urgent to reduce the use of SF6 gas in switchgear and develop new environmentally friendly gas insulated switchgear to replace traditional switchgear.

Our company has made certain progress in the technology of new gas insulated switchgear, using environmentally friendly gases to replace SF6; Unlike the relatively concentrated application scenarios of high voltage and ultra-high voltage, the application scenarios of the medium voltage switchgear market are scattered, and the usage of individual equipment is small, which brings difficulties to the management and recovery of sulfur hexafluoride gas. From an environmental perspective, rather than passively recycling, it is better to eliminate the generation of sulfur hexafluoride gas from the source. Sulfur hexafluoride free technology is the future direction of truly green and environmentally friendly development. The replacement of sulfur hexafluoride with a new dry air insulation technology requires a lot of technological innovation, with the core being vacuum disconnection and air insulation. How to combine the two technologies and apply them to the solution without sulfur hexafluoride technology has been extensively validated, overcoming five major challenges: safety and reliability, green environmental protection, cost optimization, simple operation, and performance verification, This is the most crucial part of a new generation of sulfur hexafluoride free solution as an alternative to sulfur hexafluoride, which mainly focuses on the research and understanding of the discharge characteristics of gas-solid insulation systems; Any two-phase insulation system needs to study its compatibility, which is crucial for the stable operation of distribution and transformation equipment, and also a prerequisite for ensuring transmission reliability. Therefore, it is necessary to study the compatibility of gas-solid materials. Through the study of compatibility, it is necessary to grasp the laws of the interaction between new environmentally friendly gases and the decomposed gases generated during operation and solid materials, and propose gas-solid compatibility control methods. During the operation of power transmission pipelines, they are subjected to various stresses such as electricity, heat, and force. The characteristics of new environment-friendly insulating gases increase the difficulty in designing the structural strength and current flow of transmission pipelines and insulators; In the 1000 kV transmission pipeline, the insulator is a three post insulator structure. For this insulator structure, its manufacturing process, surface morphology and the suppression of metal particles inside the transmission pipeline are all problems that need to be solved urgently. As the core component of the transmission pipeline unit prototype, we have solved the design and manufacturing technology of the three pillar insulator in the 1000kV new environmentally friendly insulated gas transmission pipeline.

The new gas insultaed switchgear should adopt an isolated grounding structure, which has circuit breakers and loads basic structural units such as switch units, load switch combined electrical unit, etc. This design structure has a small volume, is easy to maintain, and has a long service life. The switch and cabinet body of this new type of gas insulated switchgear are two independent structures, connected together through communication lines in the middle, and its modular design structure is easy to install,

Easy to debug. The new switch cabinet has been tested at a pressure lower than the standard atmospheric pressure, and the results show that all the test data of the designed new switch cabinet are normal under zero gauge pressure, and it can operate normally. Without considering the influence of dust, condensation, and other factors, in order to reduce the maintenance work of workers and achieve maintenance free, the primary components in the switchgear are sealed in the entire gas box, and an arc extinguishing chamber is designed in the gas box to extend the service life of the switchgear.

Please consult it with our dedicated engineer for a custom design of your electrical switchgear.