Detection of loss of neutral or phase
AssigneeSagemcom Energy & Telecom SAS
InventorsPierre Lhuillier, Sébastien Saint-Leger
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Abstract
A method for monitoring a polyphase network includes the steps, repeated regularly, of: acquiring voltage measurements taken by voltage sensors of an item of electrical equipment, and producing current values of electrical parameters; accessing a reference table comprising a list of connection configurations each associated with a distinct combination of reference values of said electrical parameters, the list of connection configurations comprising configurations each corresponding to a combination of connection states for each phase (P1, P2, P3) and for the neutral (N); implementing an exploratory algorithm intended to explore the reference table to identify the current connection configuration.
Claims16
A method for monitoring a polyphase electricity network, implemented at least partially in a processing unit of an item of electrical equipment connected to the polyphase electricity network, and comprising the steps, repeated regularly, of:
- acquiring voltage measurements taken by voltage sensors (R1A, R1B, R2A, R2B, R3A, R3B) of the item of electrical equipment that are connected to the polyphase electricity network;
- producing current values of electrical parameters from the voltage measurements;
- accessing a reference table that comprises a list of connection configurations each associated with a distinct combination of reference values of said electrical parameters, the list of connection configurations comprising first connection configurations each corresponding to a distinct combination of connection or disconnection states for each phase (P1, P2, P3) and for the neutral (N);
- implementing an exploratory algorithm intended to explore the reference table to identify the connection configuration associated with the current values of the electrical parameters.
Dependencies are inferred from the claim text.