CIRCUIT BREAKER
First Claim
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1. A current limiter comprising:
- first and second mechanical switches connected in series with each other; and
a diode or a parallel circuit of a diode and a snubber circuit, the diode or the parallel circuit being connected across both ends of at least one of the first and second mechanical switches.
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Abstract
Disclosed is a current-limiting circuit breaker including first and second mechanical switches connected in series with each other, a first diode, and a first snubber circuit, each connected in parallel across both ends of the first mechanical switch, and a second diode, and a second snubber circuit, each connected in parallel across both ends of the second mechanical switch.
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Citations
26 Claims
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1. A current limiter comprising:
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first and second mechanical switches connected in series with each other; and a diode or a parallel circuit of a diode and a snubber circuit, the diode or the parallel circuit being connected across both ends of at least one of the first and second mechanical switches. - View Dependent Claims (2, 3, 4, 5, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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6. A circuit breaker comprising:
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first and second mechanical switches connected in series with each other; a first diode or a parallel circuit of a first diode and a first snubber circuit;
the first diode or the parallel circuit being connected in parallel across both ends of the first mechanical switch; anda second diode or a parallel circuit of a second diode and a second snubber circuit;
the second diode or the parallel circuit being connected in parallel across both ends of the second mechanical switch;the first and second diodes having anodes connected together or having cathodes connected together;
an anode connection point or a cathode connection point of the first and second diodes being connected to a connection point of the first and second mechanical switches,the first mechanical switch being opened when the current direction is the direction of the forward current of the first diode;
the second mechanical switch being subsequently opened after reversion of the current direction, andthe second mechanical switch being opened when the current direction is the direction of the forward current of the second diode;
the first mechanical switch being subsequently opened after reversion of the current direction. - View Dependent Claims (7, 8)
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9. A circuit breaker comprising:
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first and second mechanical switches connected in series with each other; a first diode or a parallel circuit of a first diode and a first snubber circuit;
the first diode or the parallel circuit being connected in parallel across both ends of the first mechanical switch;a second diode or a parallel circuit of a second diode and a second snubber circuit;
the second diode or the parallel circuit being connected in parallel across both ends of the second mechanical switch,the first and second diodes having anodes connected together or having cathodes connected together, an anode connection point or a cathode connection point of the first and second diodes being connected to a connection point of the first and second mechanical switches; and a series circuit of a switch and a superconducting fault current limiter (SC FCL), the series circuit being connected in parallel with the series connection of the first and second mechanical switches.
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Specification