Results 41 to 50 of about 48,580 (193)

Simulation Experiment on Discharge of Plastic Film Overlapping on UHVDC Transmission Lines

open access: yesZhongguo dianli, 2022
In order to study the discharge phenomena of plastic film overlapping on UHV DC transmission lines and explore the cause of flashover fault of a ± 800 kV UHV line, an experimental study is conducted on the flashover characteristics of plastic film with ...
Shenghui WANG   +3 more
doaj   +1 more source

Growth of thin graphene layers on stacked SiC surface in ultra high vacuum

open access: yes, 2011
We demonstrate a technique to produce thin graphene layers on C-face of SiC under ultra high vacuum conditions. A stack of two SiC substrates comprising a half open cavity at the interface is used to partially confine the depleted Si atoms from the ...
Celebi, Cem   +7 more
core   +1 more source

Research on Integrated Standardization of the UHV GIL Technology

open access: yesZhongguo dianli, 2019
In order to improve the coordination and systematization of technical standards for the UHV GIL, the integrated standardization theory has been applied in UHV GIL technology field.
Jie HE   +6 more
doaj   +1 more source

Refined analysis on cross arm arrangement of a 1 000 kV UHV steel tube tower

open access: yesZhejiang dianli, 2023
In order to reduce the probability of damage to the cross arm of a 1 000 kV UHV steel tube tower, the general software TTA and the finite element software ANSYS are used for refined analysis on the internal force of the cross arm.
BAO Yunan   +5 more
doaj   +1 more source

Can Distribution Grids Significantly Contribute to Transmission Grids' Voltage Management?

open access: yes, 2016
Power generation in Germany is currently transitioning from a system based on large, central, thermal power plants to one that heavily relies on small, decentral, mostly renewable power generators.
Auer, Sabine   +4 more
core   +1 more source

Research on Reactive Power Compensation Device in UHV AC Substation Connected Directly to 500 kV Busbar

open access: yesZhongguo dianli, 2019
Site selection is often difficult for the 1 000 kV UHV AC substation due to its many-grouped reactive power on the low-voltage side of main transformer and the large space occupation.
Lan GUAN   +5 more
doaj   +1 more source

Application of Partial Discharge Critical Monitoring Technology in Internal Defect Detection of Ultra-high Voltage Reactors

open access: yesZhejiang dianli, 2022
Two cases of abnormal acetylene content rise in the oil chromatogram of ultra-high voltage reactors are introduced in this paper. To monitor the internal condition of the reactor in real time and judge the type of defect, a partial discharge critical ...
ZHAO Lin   +5 more
doaj   +1 more source

Observation of zigzag and armchair edges of graphite using scanning tunneling microscopy and spectroscopy

open access: yes, 2005
The presence of structure-dependent edge states of graphite is revealed by both ambient- and ultra-highvacuum- (UHV) scanning tunneling microscopy (STM) / scanning tunneling spectroscopy (STS) observations.
D. Papaconstantopoulos   +6 more
core   +1 more source

Prediction of 1 000 kV UHV Line Loss Based on Improved RBFNN

open access: yesZhongguo dianli, 2022
In view of the complex relationship between UHV transmission line loss and its characteristic parameters, this paper proposes a radial basis function neural network (RBFNN) model improved by use of the Canopy-K-means clustering algorithm and the adaptive
Jianhua YANG   +4 more
doaj   +1 more source

Simulation and Optimization of Airflow Organization from Nozzle Side of Air Conditioning in UHV Flexible DC Valve Hall

open access: yes南方能源建设, 2022
[Introduction] The ultra-high voltage flexible DC valve hall has the characteristics of high height, large volume, and large heat generation of equipment.
HE Naping   +3 more
doaj   +1 more source

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