scholarly journals Experimental Study on High Frequency Pulse Current Variation Characteristics of Pollution Discharge of Insulators

2020 ◽  
Vol 446 ◽  
pp. 042006
Author(s):  
Huarong Zeng ◽  
Fali Tan ◽  
Xianyin Mao ◽  
Lusong Zhang ◽  
Guoqiang Luo ◽  
...  
Keyword(s):  
Experimental Study ◽  
High Frequency ◽  
Pulse Current ◽  
Current Variation ◽  
Variation Characteristics ◽  
Frequency Pulse

signals, namely the measurement of the partial dis-charge pulse current. The Roche coil works in mag-netic coupling, and the detecting circuit and the high-voltage circuit has no direct contact, so it is very suitable for the partial discharge site inspection in the high-voltage switchgear. 3 APPLICATION OF HIGH-FREQUENCY PULSE CURRENT SENSOR IN THE WAIST STATION FOR 35 KV SWITCH CABINET A 220 KV waist station is located on a hill, which is far from about 2 km to the north of Yang street , 4 DATA DETECTION AND ANALYSIS OF Lufeng town, Lufeng country of Chuxiong city , alti-SWITCHGEAR HIGH FREQUENCY FOR tude 1923 km, which covers an area of 22876 m PARTIAL DISCHARGE and put into production on December 25, 2009. It is one of the most important substation of Chuxiong During the 2-month testing for the Chuxiong waist Lufeng area. The main power source is supplied by station , we selected the data from April 23 to May 220 KV and 500 KV peace waist I changed back 25 in 2014 for effective analysis, and found that the line, 220 kV and waist II loop power. current data of the eight high-frequency pulse cur-rent sensor is normal, so we selected three sensor

2015 ◽  
pp. 71-73
Keyword(s):  
High Voltage ◽  
High Frequency ◽  
Direct Contact ◽  
Pulse Current ◽  
Partial Discharge ◽  
Current Data ◽  
Data Detection ◽  
The North ◽  
Effective Analysis ◽  
Frequency Pulse

scholarly journals Development of Low Spatter CO2 Arc Welding Process with High Frequency Pulse Current

2007 ◽  
Vol 25 (4) ◽  
pp. 480-485 ◽  
Author(s):  
Tokihiko KATAOKA ◽  
Rinsei IKEDA ◽  
Koichi YASUDA ◽  
Yoshinori HIRATA
Keyword(s):  
High Frequency ◽  
Arc Welding ◽  
Pulse Current ◽  
Welding Process ◽  
Arc Welding Process ◽  
Frequency Pulse

Study on Pulse Effect of Electrochemical Machining of Conductive Material

2011 ◽  
Vol 230-232 ◽  
pp. 1216-1220
Author(s):  
Xia Yu ◽  
Yong Yan ◽  
Lin Bo Wei ◽  
Shu Ping Li ◽  
Xian Li
Keyword(s):  
High Frequency ◽  
Pulse Current ◽  
Electrochemical Machining ◽  
Microscopic Mechanism ◽  
Conductive Material ◽  
Ultra High Frequency ◽  
Pulse Effect ◽  
Frequency Group ◽  
Power Frequency ◽  
Frequency Pulse

The paper mainly discussed about the development of the electrochemical machining, from early direct-current ECM (DECM) to pulse current ECM (PECM), high frequency pulse current ECM (HPECM) and ultra-high frequency pulse current ECM (UHPECM). Microscopic mechanism of the machining results were discussed in the paper. We studied the influence of power frequency to the result, effects of pulse effect on the finishing result were also researched. Besides, high-frequency group pulse and ultra-high-frequency group pulse ECM were researched in the paper, comparing the two machining methods, some important conclusions are showed as follows.

scholarly journals Case Analysis on Partial Discharge Signal of XLPE Cable T-Joint by Using High-Frequency Pulse Current Method

2017 ◽  
Vol 141 ◽  
pp. 545-550 ◽  
Author(s):  
Zhang Hao ◽  
Duan Yubing ◽  
Wang Bin ◽  
Liu Hui ◽  
Lin Ying ◽  
...  
Keyword(s):  
High Frequency ◽  
Pulse Current ◽  
Partial Discharge ◽  
Case Analysis ◽  
Current Method ◽  
Xlpe Cable ◽  
Frequency Pulse

scholarly journals Experimental study on a 20W/80K high frequency pulse tube cryocooler

2020 ◽  
Vol 755 ◽  
pp. 012038
Author(s):  
Xuming Liu ◽  
Liubiao Chen ◽  
Xianlin Wu ◽  
Jue Wang ◽  
Yuan Zhou ◽  
...  
Keyword(s):  
Experimental Study ◽  
High Frequency ◽  
Pulse Tube ◽  
Pulse Tube Cryocooler ◽  
Frequency Pulse
Sign in / Sign up

Export Citation Format

Share Document