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AssigneeTokyo Shibaura Denki Kabushiki Kaisha
InventorsSatoru Yanabu, Toru Tamagawa, Susumu Nishiwaki
Estimating the term…
A circuit breaker apparatus of high voltage direct currents is connected in series with an external circuit comprising an AC-DC converting device connected to an AC power supply and a DC reactor connected to the AC-DC converting device, and comprises a circuit breaker connected in series with the external circuit, a disconnecting switch connected to the circuit breaker, and a series circuit connected in parallel with the circuit breaker and constituted of a blocking capacitor and a primary winding in a transformer. A charge storage capacitor is connected to a secondary winding of the transformer through a starting switch and polarity changeover switch, and an AC power supply for charging is connected through a diode to the charge storage capacitor.
A circuit breaker apparatus of high voltage direct currents which is connected to an external circuit comprised of AC-DC converting means connected to an AC power supply and a DC reactor connected to said converting means, comprising a circuit breaker connected in series with said external circuit, a transformer, a series circuit connected in parallel with the circuit breaker and comprising a blocking capacitor and a primary winding of said transformer, and a secondary winding circuit comprising a secondary winding in said transformer, a charge storage capacitor connected to a charge storage power supply and a starting switch connected between said secondary winding and said charge storage capacitor.
Dependencies are inferred from the claim text.