Relay protection device with novel ProfiBus interface

The utility model discloses a relay protection device with a novel ProfiBus interface, which comprises a central processing unit, a VPC3 integrated chip, an optical coupling assembly, an RS485 module and a ProfiBus terminal interface circuit, the ProfiBus terminal interface circuit comprises a Profi...

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Bibliographische Detailangaben
Hauptverfasser:	LIANG ZHENCHENG, CHEN YUHUA, XIE ZHIJIE, LI MINGDUO, XIE WENCHAO, WU GUOHUA, JIANG KONGRONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLYOR DISTRIBUTION OF ELECTRIC POWER 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 relay protection device with a novel ProfiBus interface, which comprises a central processing unit, a VPC3 integrated chip, an optical coupling assembly, an RS485 module and a ProfiBus terminal interface circuit, the ProfiBus terminal interface circuit comprises a ProfiBus terminal interface and a terminal resistance circuit, the central processing unit is sequentially connected with the VPC3 integrated chip, the optical coupling assembly, the RS485 module and the ProfiBus terminal interface, and the terminal resistance circuit is connected with the central processing unit. And the terminal resistance circuit is connected in parallel between the RS485 module and the ProfiBus terminal interface. According to the utility model, the RS485 terminal interface and the cable are adopted, the volume is small, the installation is easy, the drawer cabinet is convenient to push in and pull out, and the problems that in a low-voltage 400V drawer cabinet, a ProfiBus bus connector and a specia