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US 2016/0105014 A1Published application
Direct current circuit breaker and method using the same
AssigneeLsis Co., Ltd.
InventorsGyeong-Ho Lee, Jung-Wook Sim, Hae-Yong Park
Life of this patent
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Abstract
Disclosed is a direct current (DC) circuit breaker including a first line in which a first high-speed switch and a power semiconductor switch are connected in series; a second line in which a plurality of second high-speed switches, a plurality of pairs of a first non-linear resistor and a power fuse connected in parallel, and a resistor are connected in series; and a third line including a second non-linear resistor. The first line, the second line, and the third line are connected in parallel.
Claims16
A direct current (DC) circuit breaker comprising:
- a first line in which a first high-speed switch and a power semiconductor switch are connected in series;
- at least one second line in which a plurality of second high-speed switches, a plurality of pairs of a first non-linear resistor and a power fuse connected in parallel, and a resistor are connected in series;
- and
- a third line including a second non-linear resistor,
- wherein the first line, the second line, and the third line are connected in parallel.
2 more elements
A method of using a DC circuit breaker comprising:
- preparing a DC circuit breaker comprising a first line in which a first high-speed switch and a power semiconductor switch are connected in series;
- a second line in which a plurality of second high-speed switches, a plurality of pairs of a first non-linear resistor and a power fuse connected in parallel, and a resistor are connected in series;
- and a third line including a second non-linear resistor;
- opening the first high-speed switch and then turning off the power semiconductor switch after a predetermined time period, such that a current bypasses the first line to flow to the second line;
- interrupting the current flowing through the second line as the power fuse is melted, such the current flowing through the second line is led to flow to the third line;
- and
- reducing the current flowing through the third line by the second non-linear resistor.
4 more elements
Dependencies are inferred from the claim text.