scholarly journals Surface Discharge Characteristics Study on the Laminated Solid Insulator in Quasi-Uniform Electric Field with Dry Air

2015 ◽  
Vol 10 (2) ◽  
pp. 603-609
Author(s):  
Gyeong-Jun Min ◽  
Sungwoo Bae ◽  
Byoung-Chil Kang ◽  
Won-Zoo Park
Keyword(s):  
Electric Field ◽  
Surface Discharge ◽  
Uniform Electric Field ◽  
Discharge Characteristics ◽  
Dry Air ◽  
Solid Insulator

Discharge and Flashover Behavior in Oil-Paper

2020 ◽  
pp. 105-128
Keyword(s):  
Electric Field ◽  
Operating Conditions ◽  
Surface Discharge ◽  
Discharge Characteristics ◽  
Dc Voltage ◽  
Composite Field ◽  
Field Distortion ◽  
Lightning Impulse ◽  
Creeping Discharge ◽  
Paper Insulation

Due to special operating conditions, the valve side bushing of the converter transformer connected to the converter valve is subject to complex voltage excitation, including DC voltage, AC/DC composite voltage, lightning impulse overvoltage, or composite voltage of operating overvoltage and DC. Under the action of this complicated electric field, the oil-paper insulation of the valve-side bushing of the converter transformer is prone to electric field distortion due to charge accumulation, which causes a surface discharge, which will seriously cause the edge breakdown. At the same time, since the temperature in the converter transformer rises due to a large amount of loss during the operation of the transformer, creeping discharge is more likely to occur under the electrothermal composite field. Hence, it is significant to carry out research on the surface discharge characteristics of the oil-paper insulation on the valve side of the converter transformer under the electrothermal composite field.

Partial discharge characteristics of bubble flow under AC non-uniform electric field in FC-72

2020 ◽  
Vol 27 (4) ◽  
pp. 1119-1127
Author(s):  
Shenyang Mo ◽  
Zhibin Zhao ◽  
Xuebao Li ◽  
Xiang Cui ◽  
Jiayu Xu ◽  
...  
Keyword(s):  
Electric Field ◽  
Partial Discharge ◽  
Uniform Electric Field ◽  
Bubble Flow ◽  
Discharge Characteristics

Discharge Characteristics of SF6in a Non-Uniform Electric Field Under Repetitive Nanosecond Pulses

2014 ◽  
Vol 16 (5) ◽  
pp. 465-470 ◽  
Author(s):  
Huijuan Ran ◽  
Lei Wang ◽  
Jue Wang ◽  
Tao Wang ◽  
Ping Yan
Keyword(s):  
Electric Field ◽  
Uniform Electric Field ◽  
Discharge Characteristics ◽  
Nanosecond Pulses
Sign in / Sign up

Export Citation Format

Share Document