Electricity companies around the world are constantly seeking ways to provide electricity more safely and efficiently while reducing negative impact on environment. Mineral oils have been most popular transformer insulation, having excellent electrical insulating properties, but many problems such as high flammability, significant cleaning problems, toxic fish wildlife. This paper presents an a...

Detection of decomposition products of sulfur hexafluoride (SF₆) is one of the best ways to diagnose early latent insulation faults in gas-insulated equipment, and the occurrence of sudden accidents can be avoided effectively by finding early latent faults. Recently, functionalized graphene, a kind of gas sensing material, has been reported to show good application prospects in the gas sensor f...

In order to judge the inside insulation fault of SF6 insulated equipment, the gas-sensing properties to a series of characteristic SF6 decomposition components, SOF2, SO2F2, SO2, H2S, CF4, HF, and SF6, have been studied. In this study, a comparative study of these gassensing materials has been made in theoretical and experimental fields to find the optimal gas-sensing material, and put forward ...

This contribution provides preliminary modelling results and data analysis of an existing neutral-temperature district heating (NTDH) network. The word ”neutral” in this context refers to the fact that distribution temperature is close ambient (e.g., 15–20 °C). type network coupled with decentralized heat pumps (HP), for both cooling. They offer advantage being reversible possibility integratin...

Sulfur dioxide (SO2) is a typical sulfur hexafluoride (SF6) decomposition by product in gas insulated switchgear (GIS). Online monitoring and analyzing SO2 gas concentration can timely and effectively evaluate the insulation performance of SF6-gas-insulated apparatus. In this study, pure and 3 at % Cu-doped SnO2 microspheres were synthesized via a simple and facile hydrothermal method, and were...