Three-power-supply switching device

The utility model discloses a three-power-supply switching device, which comprises a programmable logic controller, a first automatic transfer switching device and a second automatic transfer switching device, and is characterized in that two wire inlet ends of the first automatic transfer switching...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	GAO SHUANGSONG, LU ZHENGGUO, DING JIANFENG, WANG YALI, LIN PENG, HUANG TINGTING, CHEN LIANGLIANG, RUI YATING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	The utility model discloses a three-power-supply switching device, which comprises a programmable logic controller, a first automatic transfer switching device and a second automatic transfer switching device, and is characterized in that two wire inlet ends of the first automatic transfer switching device are respectively connected with a first generator set power supply and a second generator set power supply; a second wire inlet end of the second automatic transfer switching equipment is connected with an output power supply of the first automatic transfer switching equipment, and a first wire inlet end is connected with a mains supply; and the programmable logic controller monitors a mains supply voltage signal, a first generator set power supply voltage signal and a second generator set power supply voltage signal, performs power supply switching control on the first automatic transfer switching equipment and the second automatic transfer switching equipment, and performs start-stop control on a first ge