Experimental Study on Statistical Characteristics of Surface Flashover under Nanosecond Pulse in Transformer Oil

2006 ◽  
Author(s):  
Li Guangjie ◽  
Wang Jue ◽  
Yan Ping ◽  
Zhang Shichang ◽  
Sun Yaohong
Keyword(s):  
Experimental Study ◽  
Nanosecond Pulse ◽  
Transformer Oil ◽  
Statistical Characteristics ◽  
Surface Flashover

Study on dielectric surface discharge in transformer oil under high voltage nanosecond pulse

2005 ◽  
Vol 63 (6-10) ◽  
pp. 665-671 ◽  
Author(s):  
J. Wang ◽  
Y.X. Zhou ◽  
P. Yan ◽  
W.L. Huang ◽  
G.J. Li ◽  
...  
Keyword(s):  
High Voltage ◽  
Dielectric Surface ◽  
Nanosecond Pulse ◽  
Transformer Oil ◽  
Surface Discharge

An Experimental Study of Free Corrective Heat Transfer in a Parallelogrammic Enclosure

1983 ◽  
Vol 105 (3) ◽  
pp. 433-439 ◽  
Author(s):  
N. Seki ◽  
S. Fukusako ◽  
A. Yamaguchi
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Nusselt Number ◽  
Correlation Equation ◽  
Transformer Oil ◽  
Experimental Measurements ◽  
Transfer Coefficients ◽  
Heat Transfer Coefficients ◽  
Prandtl Numbers ◽  
Rayleigh Numbers

Experimental measurements are presented for free convective heat transfer across a parallelogrammic enclosure with the various tilt angles of parallel upper and lower walls insulated. The experiments covered a range of Rayleigh numbers between 3.4 × 104 and 8.6 × 107, and Prandtl numbers between 0.70 and 480. Those also covered the tilt angles of the parallel insulated walls with respect to the horizontal, φ, of 0, ±25, ±45, ±60, and ±70 deg under an aspect ratio of H/W = 1.44. The fluids used were air, transformer oil, and water. It was found that the heat transfer coefficients for φ = −70 deg were decreased to be about 1/18 times those for φ = 0 deg. Experimental results are given as plots of the Nusselt number versus the Rayleigh number. A correlation equation is given for the Nusselt number, Nu, as a function of φ, Pr, and Ra.

Experimental study of vacuum surface flashover based on magnetic flashover inhibition

2012 ◽  
Vol 24 (3) ◽  
pp. 559-562
Author(s):  
刘瑜 Liu Yu ◽  
王勐 Wang Meng ◽  
杨尊 Yang Zun ◽  
周良骥 Zhou Liangji ◽  
邹文康 Zou Wenkang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Surface Flashover

Experimental study on uniformity of dielectric barrier discharge generated by nanosecond pulse in atmospheric air

2018 ◽  
Vol 25 (9) ◽  
pp. 093505 ◽  
Author(s):  
Hongfei Guo ◽  
Huijie Yan ◽  
Yidi Liu ◽  
Zhihui Fan ◽  
Yuying Wang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Nanosecond Pulse ◽  
Dielectric Barrier ◽  
Atmospheric Air

On evaluation of thermophysical properties of transformer oil-based nanofluids: A comprehensive modeling and experimental study

2020 ◽  
Vol 300 ◽  
pp. 112249 ◽  
Author(s):  
Ahmadreza Ghaffarkhah ◽  
Masoud Afrand ◽  
Mohsen Talebkeikhah ◽  
Ali Akbari Sehat ◽  
Mostafa Keshavarz Moraveji ◽  
...  
Keyword(s):  
Experimental Study ◽  
Thermophysical Properties ◽  
Transformer Oil ◽  
Comprehensive Modeling

Characteristics of nanosecond pulse dielectric surface flashover in high pressure SF6

2018 ◽  
Vol 25 (4) ◽  
pp. 1387-1392
Author(s):  
Chuyu Sun ◽  
Hui Zhou ◽  
Weiqing Chen ◽  
Junna Li ◽  
Linshen Xie ◽  
...  
Keyword(s):  
High Pressure ◽  
Dielectric Surface ◽  
Nanosecond Pulse ◽  
Surface Flashover
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