Differential protection device and protection system for monitoring objects to be protected in a power supply network

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United States of America Patent

PATENT NO 11909194
APP PUB NO 20220311232A1
SERIAL NO

17701900

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Abstract

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A differential protection device monitors a first object to be protected in an electrical energy supply network. The differential protection device has a measuring unit configured to acquire measurement values at one end of the first object to be protected, a communication unit configured to exchange measurement values with a differential protection device arranged at another end of the first object to be protected, the communication unit has a physical interface for transmitting and receiving the measurement values, and an evaluation unit configured to form a differential value and to generate a fault signal indicating a fault with regard to the first object to be protected if the differential value exceeds a predefined threshold value. Ideally, the differential protection device is configured to monitor further objects to be protected and to exchange respective further measurement values with regard to each further object to be protected.

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Patent Owner(s)

Patent OwnerAddress
SIEMENS AKTIENGESELLSCHAFTWERNER-VON-SIEMENS-STRASSE 1 80333 MÜNCHEN MÜNCHEN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gross, Matthias Berlin, DE 3 8
Kerger, Torsten Schoenwalde-Glien, DE 6 13
Krueger-Gramatte, Sven Berlin, DE 1 0
Matussek, Robert Berlin, DE 4 7
Regenbrecht, Andreas Berlin, DE 1 0
Schumacher, Torsten Berlin, DE 3 209

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