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US 12,235,330 B2Granted
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.
Claims20
A method comprising:
- sampling a voltage drop between an input point and an output point within a breaker box for at least one circuit;
- detecting one said circuit with an increased voltage drop above a threshold value;
- sampling an input current at an input point of the breaker box, said input point connected to a same phase as said increased voltage drop;
- and
- when said input current increases and has 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 increased voltage drop by said increased current, and, generating an indication of the loaded resistance.
3 more elements
A method comprising:
- sampling a voltage drop within a breaker box for at least one circuit from a plurality of circuits;
- detecting a circuit among said at least one circuit 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 specific electrical 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 for detecting faults in a breaker box comprising:
- a processor comprising a CPU, a 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 measuring a voltage drop from said entry point and said exit point voltages;
- and
- a current sampling interface;
- wherein
- said processor being programmed with executable instructions to receive time series of current data, sampled at an input point of the breaker box, and corresponding voltage drop data, sampled between an input point and an output point within the breaker box, for said at least one circuit, to calculate a loaded resistance of said at least one circuit by dividing said voltage drop by said current data, and to generate an indication of the loaded resistance.
4 more elements
Dependencies are inferred from the claim text.