A system of active protection from hazards of industrial frequency electro-magnetic field

Author

Beltzer, A. ; Schenkman, A. ; Sonkin, N.

Author_Institution

Center for Technol. Educ., Tel Aviv Univ., Israel

fYear

1999

Firstpage

58

Abstract

The method for active suppression of electromagnetic field of industrial frequency (EMF) was developed for two cases: large spaces, in which the EMF is created by single known source (like a power line, transformer or any other electric apparatus) and confined spaces in which EMF is created by several sources (around computers, houses, offices). The method is based on decomposing the total EMF vector into the three components and further suppression of each component. This is accomplished by means of creating anti-EMF using the system of windings of different forms. An automatic control system with negative feedback is used for this goal.

Keywords

electromagnetic fields; electromagnetic shielding; health hazards; safety; active protection system; active suppression method; anti-EMF creation; automatic control system; computers; electric apparatus; health hazards; industrial frequency electromagnetic fields; negative feedback; power line; total EMF vector decomposition; transformer; windings; Aerospace industry; Automatic control; Coils; Computer industry; Electrical equipment industry; Electromagnetic fields; Frequency; Hazards; Protection; Space technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Power Engineering, 1999. PowerTech Budapest 99. International Conference on

Conference_Location

Budapest, Hungary

Print_ISBN

0-7803-5836-8

Type

conf

DOI

10.1109/PTC.1999.826489

Filename

826489