Title :
Reduction of power system magnetic field by configuration twist
Author :
Pettersson, Per ; Schonborg, Niclas
Author_Institution :
Vattenfall Utveckling AB, Stockholm, Sweden
fDate :
10/1/1997 12:00:00 AM
Abstract :
The low-frequency magnetic field in the vicinity of helical three-conductor arrangements carrying symmetric three-phase alternating current is studied by analytical numerical and experimental methods. New approximate and simple closed-form expressions are derived for all three components of the three-dimensional field vector as function of current, distance, pitch and conductor spacing. Comparison is made with numerical results. Measurements on an experimental helical arrangement have also been performed for verification
Keywords :
magnetic fields; power cable testing; power system measurement; closed-form expressions; configuration twist; helical three-conductor arrangement; low-frequency magnetic field; magnetic field reduction; power system; symmetric three-phase alternating current; three-dimensional field vector; Closed-form solution; Conductors; Engine cylinders; Magnetic analysis; Magnetic field measurement; Magnetic fields; Power cables; Power measurement; Power system analysis computing; Power systems;
Journal_Title :
Power Delivery, IEEE Transactions on
