Electricity: electrical systems and devices – Safety and protection of systems and devices – Arc suppression at switching point
Patent
1979-08-28
1981-12-22
Salce, Patrick R.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Arc suppression at switching point
361 3, H02H 722
Patent
active
043074286
ABSTRACT:
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.
REFERENCES:
patent: 2610231 (1952-09-01), Wettstein
patent: 3475620 (1969-10-01), Murray et al.
patent: 4172270 (1979-10-01), Kiyokuni et al.
Panel Session On "Prospects for Multiterminal H.V.D.C. Transmission Status of DC Interrupting Devices", by Breuer, et al., General Electric Co., 1977, Summer Meeting, Mexico City.
Nishiwaki Susumu
Tamagawa Toru
Yanabu Satoru
Salce Patrick R.
Tokyo Shibaura Denki Kabushiki Kaisha
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