VOLTAGE LIMITER
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United States of America Patent
Stats
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N/A
Issued Date -
Dec 29, 2016
app pub date -
Jul 10, 2014
filing date -
Jul 19, 2013
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A voltage limiter includes first and second DC terminals connectable to a DC power transmission medium and ground, respectively. The voltage limiter further includes: (1) a current transmission path including two portions connected in series between the terminals and each including a non-linear resistive element; (2) a current bypass limb connected in parallel with the second portion and including at least one switching element; and (3) a control unit configured to control switching of the or each switching element to selectively switch the current bypass limb, during a fault condition, from a first mode to a second mode. In the first mode, current flows through the current bypass limb and bypasses the second current transmission path portion. In the second mode, current between the DC terminals is inhibited from flowing through the current bypass limb and thereby permits the current to flow through the second portion.
First Claim
Other Claims data not available