supported by the Hainan Provincial Natural Science Foundation of China(No.821QN0982 and No.2019RC373)。
Objective:A novel technique was explored using an airbag-selective portal vein blood arrester that circumvents the need for an intraoperative assessment of anatomical variations in patients with complex intrahepatic s...
supported by the Fundamental Research Funds for the Central Universities(2021JBM025);the National Natural Science Foundation of China(51907003).
The large leakage current of the roof arrester caused by the high‐frequency resonant overvoltage on the high‐speed train occurs intermittently,which will cause the arrester to overheat locally.In this work,the overh...
The roof arrester of electric multiple units(EMU)can efficiently limit the overvoltage,and ensure the safe operation of the EMU electrical equipment.In the process of high‐speed operation,the traction power supply sy...
supported by‘The Fundamental Research Funds for the Central Universities’(2021QNA4014).
Hybrid circuit breakers(CBs)are the most promising technology to isolate DC faults in modular multilevel converter(MMC)‐based DC grids.However,they consist of expen-sive power electronic components that are sensitive...
Due to important consideration of protection against lightning surge on electrical, electronic and telecommunication equipment, it was necessary to carry out a special study to look at the performance of protective de...
When the tower overhead is struck by the lightning impulse, the lightning current flows into the earth through the impedance of tower and the grounding resistance, which heightens potential of the tower overhead and p...
Zinc Oxide (ZnO) surge arresters (SAs) experience thermal runaway when the temperature exceeds the acceptable limit. This phenomenon is associated with the increase in resistive leakage current due to degradation. Thi...
The study of the electric field around a surge arrester is useful for design procedures and diagnostic tests. The current work com- putes the electric field around a medium voltage gapless surge arrester using 2D and ...
In order to limit short-circuit current and satisfy the need of relay setting, only part of the 220 kV power transformer is grounded, so on the neutrals of ungrounded transformers will appear the over-voltage. Current...