SE8803262D0 - SHIELDING OF MAGNETIC FIELD FROM POWER PIPES - Google Patents

SHIELDING OF MAGNETIC FIELD FROM POWER PIPES

Info

Publication number
SE8803262D0
SE8803262D0 SE8803262A SE8803262A SE8803262D0 SE 8803262 D0 SE8803262 D0 SE 8803262D0 SE 8803262 A SE8803262 A SE 8803262A SE 8803262 A SE8803262 A SE 8803262A SE 8803262 D0 SE8803262 D0 SE 8803262D0
Authority
SE
Sweden
Prior art keywords
magnetic field
line
phase
currents
screen line
Prior art date
Application number
SE8803262A
Other languages
Swedish (sv)
Other versions
SE460447B (en
Inventor
U Jonsson
Original Assignee
Statens Vattenfallsverk
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Statens Vattenfallsverk filed Critical Statens Vattenfallsverk
Priority to SE8803262A priority Critical patent/SE460447B/en
Publication of SE8803262D0 publication Critical patent/SE8803262D0/en
Publication of SE460447B publication Critical patent/SE460447B/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/20—Spatial arrangements or dispositions of lines or cables on poles, posts or towers

Landscapes

  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

The lines acting as screens (8,9,10) are suspended outside each phase line (R,S,T), and connected into a circuit so that the magnetic field from currents induced into them counteracts the magnetic field from the currents in the phase lines. Capacitors are provided to act on the amplitude and phase of the screen line currents to increase the compensating effect in their magnetic field on that of the phase lines. The screen line suspension is such that they form the corner points of an equilateral triangle, and the screen line (10) located beneath the lowest phase linem (T) is inserted in the ground. Connected to each screen line is a voltage source which drives a current through the line which, together with the induction current flowing :, forms a resultant current providing the required compensated magnetic field. A monitor is provided for the power line magnetic field, and controls for regulating the voltage sources.
SE8803262A 1988-09-15 1988-09-15 Electric power line screening method for magnetic fields SE460447B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8803262A SE460447B (en) 1988-09-15 1988-09-15 Electric power line screening method for magnetic fields

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8803262A SE460447B (en) 1988-09-15 1988-09-15 Electric power line screening method for magnetic fields

Publications (2)

Publication Number Publication Date
SE8803262D0 true SE8803262D0 (en) 1988-09-15
SE460447B SE460447B (en) 1989-10-09

Family

ID=20373340

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8803262A SE460447B (en) 1988-09-15 1988-09-15 Electric power line screening method for magnetic fields

Country Status (1)

Country Link
SE (1) SE460447B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1128513A1 (en) * 2000-02-21 2001-08-29 ABB T&D Technology Ltd. Supporting tower
NL1027605C2 (en) * 2004-11-26 2006-05-29 Laszlo Imre Vakar High voltage pylon, energy transport system, energy transport method and assembly method.
ITTO20080176A1 (en) 2008-03-07 2009-09-08 Aldo Canova SHINY AND CONDUCTIVE PASSIVE SHIELDING SYSTEM WITH HIGH MAGNETIC COUPLING
CH713619A1 (en) * 2017-03-24 2018-09-28 Axpo Power AG Conversion process or production method for overhead power pylons and overhead line mast.

Also Published As

Publication number Publication date
SE460447B (en) 1989-10-09

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