Residual current detecting (RCD) and ground impedance monitoring transformer and control methods

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United States of America Patent

PATENT NO 9964574
SERIAL NO

15614059

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Abstract

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Systems, devices, and methods for a transformer including: a first drive winding (206) wound on a first core; a second drive winding wound on a second core; a sense winding wound across the first and second cores; and a compensation winding wound across the first and second cores; where one or more utility lines are threaded through a middle of the first and second cores, a common mode current in the one or more utility lines causes one or more pulses to appear on the sense winding, a current on the compensation winding is adjusted until the one or more pulses on the sense winding are cancelled out, and the common mode current on the one or more utility lines is the adjusted current on the compensation winding multiplied by a turn ratio between the compensation winding and the sense winding.

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Patent Owner(s)

Patent OwnerAddress
WEBASTO CHARGING SYSTEMS INC900 ENCHANTED WAY (INNOVATORS WAY) SIMI VALLEY CA 93065

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Berman, Scott Los Angeles, US 6 82
Flack, Albert Joseph Garden Grove, US 24 443
Gabrielsson, Peter Sierra Madre, US 8 8

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