Nanjing Electric (group ) Co., Ltd has developed new type glass insulator

On the high-voltage rack, we often can see the ring that looks like glass bowl that suspended from the wires and brackets, this is the glass insulator. Recently, Nanjing Electric (Group) Co., Ltd has developed the direct current rotary type suspension glass insulator. After being put into production, this product will be mainly used for high voltage direct current transmission, and offer equipment supporting for national power network, and the installation of "Transfer the electricity from west area to east area" and other projects.

It is understood that the primary role of the glass insulator is for insulating in HV and EHV AC and DC transmission lines. According to the introduction of Shen Qirong, the general manager of Nanjing Electric (Group) Co., Ltd., this time the 550 kN creepage distance direct current glass insulator developed independently by our company is using umbrella model technology, it has three levels: 650 mm, 670 mm, and 710 mm, and it is the top in world for this industry.” Some workers for this company said, creepage distance is the most important standard for insulation performance of glass insulator. It is understood that as the power rack and wires are exposed to the outside over many years, they are easier to be covered with dust and oil, this new type of glass insulator, as the increasing of creepage distance, it can effectively prevent the contamination from scattering on the device as the electricity shock, that is the " pollution flashover ".