Self-powered automatic switching and closing high-voltage control system
The invention discloses a self-powered automatic switching and closing high-voltage control system, which comprises a main power supply, a spare power supply and a high-voltage cabinet control circuit, wherein a self-powered device is arranged between the main power supply and the spare power supply...
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| Hauptverfasser: | , , , |
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| Format: | Patent |
| Sprache: | chi ; eng |
| Schlagworte: | |
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| Zusammenfassung: | The invention discloses a self-powered automatic switching and closing high-voltage control system, which comprises a main power supply, a spare power supply and a high-voltage cabinet control circuit, wherein a self-powered device is arranged between the main power supply and the spare power supply, and the self-powered device comprises main and spare direct-current power supply branches; the main and spare direct-current power supply branches comprise main and spare voltage transformers connected in parallel with the wire inlet ends of the main and spare power supplies respectively, the output ends of the main and spare voltage transformers are connected with main and spare middle isolating transformers respectively, the output end of the main middle isolating transformer is connected in parallel with coils of a main rectifying electric bridge and a direct-direct switching relay at the same time, the output end of the spare middle isolating transformer is connected with a spare rectifying electric bridge, a |
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