Title :
Principles in transmission line magnetic field reduction
Author_Institution :
Vattenfall Utveckling AB, Vallingby, Sweden
fDate :
7/1/1996 12:00:00 AM
Abstract :
The basic principles of transmission line magnetic field generation are addressed in order to enhance understanding when designing for low fields. For structured analysis, the B-field RMS-value is represented as a product of autonomous factors. The range of applicability spans phase-split arrangements, active shielding by impressed shield currents, and passive shielding using induced currents with and without series compensation of the shield-conductor loop. An innovative four-conductor scheme is presented
Keywords :
compensation; magnetic fields; magnetic shielding; power overhead lines; power transmission lines; B-field RMS-value; active shielding; four-conductor scheme; impressed shield currents; induced currents; magnetic field generation; magnetic field reduction; passive shielding; phase-split arrangements; series compensation; shield-conductor loop; structured analysis; transmission line; Conductors; Design engineering; Equations; Magnetic analysis; Magnetic fields; Magnetic shielding; Power & Energy Society; Samarium; Substations; Transmission lines;
Journal_Title :
Power Delivery, IEEE Transactions on
