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US 2023/0147123 A1Published application
Method and system to determine electrical faults
AssigneeE.S.P. S.R.L.
InventorMoshe COHEN GADOL
Life of this patent
Estimating the term…
Abstract
Methods and systems provide an indication that a loose connection and/or fault occurred in a breaker box or other electrical connecting device. The method includes calculating normal resistance for circuits within a breaker box when a current drawing load is present, and monitoring increases in voltage drop of the circuits to detect whether the increase is due to increased current flow or a faulty connection.
Claims19
A method comprising:
- sampling a voltage drop between an input point and an output point within a breaker box for at least one of circuit;
- detecting one said circuit with an increased voltage drop from a threshold value;
- sampling an input current at an input point of a breaker box, said input point connected to a same phase as said increased voltage drop;
- and
- when said input current increases above a threshold value and comprises a sufficiently similar phase angle and time synchronization as said increased voltage drop:
- calculating a loaded resistance of said detected circuit by dividing said detected voltage by said increased voltage current.
3 more elements
A method comprising:
- sampling a voltage drop within a breaker box for at least one circuit;
- detecting a circuit among said at least one circuits with an increased voltage drop between an input point and an output point of said breaker box, said voltage drop above a threshold value in a specific electrical phase;
- sampling an input current to said breaker box of said same phase as said increased voltage drop;
- and
- if no increased current occurred corresponding in both time synchronization and phase angle to said increased voltage drop:
- generating an alarm.
3 more elements
A system detecting faults in a breaker box comprising:
- a processor comprising a CPU, communications interface, and a memory;
- a voltage sampling interface connected to entry points and exit points of circuits within said breaker box;
- a voltage comparator for calculating a voltage drop from said entry point and exit point voltages;
- a current sampling interface;
- and
- said processor programmed with executable instructions to receive time series of current data and corresponding voltage drop data for said at least one circuit, and to calculate a loaded resistance of said at least one circuit;
3 more elements
Dependencies are inferred from the claim text.