scholarly journals DECREASING THE EXTREMELY LOW-FREQUENCY ELECTRIC FIELD EXPOSURE WITH A FARADAY CAGE DURING WORK TASKS FROM A MAN HOIST AT A 400 KV SUBSTATION

2016 ◽  
Vol 48 ◽  
pp. 55-66 ◽  
Author(s):  
Herkko Pirkkalainen ◽  
Jarmo Elovaara ◽  
Leena Korpinen
Keyword(s):  
Electric Field ◽  
Low Frequency ◽  
Field Exposure ◽  
Faraday Cage ◽  
Extremely Low Frequency ◽  
Work Tasks ◽  
Frequency Electric Field

Real-Time Suppression Technology Research on Shaft-Rate Electric Field

2014 ◽  
Vol 602-605 ◽  
pp. 2649-2653
Author(s):  
Jun Zhong Sun ◽  
Hai Long Jiang ◽  
Zhen Sheng Xia ◽  
Kuo Ting Wang
Keyword(s):  
Electrical Properties ◽  
Electric Field ◽  
Real Time ◽  
Low Frequency ◽  
Equivalent Model ◽  
Technology Research ◽  
Close Loop System ◽  
Extremely Low Frequency ◽  
Frequency Electric Field ◽  
The Impact

To reduce the impact of shaft-rate electric field (SRE) on the concealment of the ship, the SRE related ship electrical equivalent model is established, and the electrical properties are studied based on the analysis of the mechanism of SRE of the ship in this paper. The ship SRE real-time suppression is proposed based on the compensated negative potential and the real-time close-loop system for the ship SRE suppression is designed. The extremely low frequency electric field strength is reduced greatly, and the shaft-rate and its harmonics field are eliminated ultimately. Experimental results show that the ship SRE can be suppressed effectively by the system, and the concealment of the ship is enhanced.

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