A new saturable transformer measures direct current through conductors in the vicinity of large stray magnetic fields
Alfred Windsor, Lawrence Radiation Laboratory, University of California, Berkeley. Lawrence Radiation Laboratory
Lawrence Radiation Laboratory, 1960 - Science - 14 pages
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ac current transformer accuracy acting on behalf Alfred Windsor Lawrence ampere-turn balance amplitude is equal average of positive balance is maintained California Berkeley California October 17 Coercive current Commission constant ampere turn Conventional dc transformer core saturates current bus CURRENT THROUGH CONDUCTORS cycle employee or contractor established domain walls excess Volt-seconds FIELDS Alfred Windsor flux frequency is twice frequency response H loops interval of excess LARGE STRAY MAGNETIC Lawrence Radiation Laboratory MAGNETIC FIELDS Alfred material for core MEASURES DIRECT CURRENT Orthonol core material output person acting physics research positive and negative principle of operation process disclosed reset core ripple amplitude ripple is removed saturable reactor SATURABLE TRANSFORMER MEASURES saturated inductance Second harmonic ripple secondary source voltage stray magnetic fields TRANSFORMER MEASURES DIRECT transformer of Fig transverse field turn balance University of California VICINITY OF LARGE volt-second area Volt-seconds are absorbed wider hysteresis loop width Windsor Lawrence Radiation zero control current