MULTIPLE COIL CONFIGURATION FOR FAULTED CIRCUIT INDICATOR
First Claim
1. A faulted circuit indicator (FCI) device, comprising:
- a fault alert module;
a sensor configured to measure a current flowing within a power line based on a first inductive coupling with the power line;
a power supply configured to provide at least one supply voltage based on a second inductive coupling with the power line; and
a detector/controller module coupled to the fault alert module, sensor, and power supply, wherein the detector/controller is configured to monitor measurements provided by the sensor and provide a warning signal to the fault alert module when a fault condition in the power line is detected.
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Accused Products
Abstract
A faulted circuit indicator (FCI) may use a multiple coil configuration to improve measurements of current flowing through a power line. The FCI may include a fault alert module and a sensor configured to measure a current flowing within a power line based on a first inductive coupling with the power line. The FCI may further include a power supply configured to provide at least one supply voltage based on a second inductive coupling with the power line. The FCI may include a detector/controller module coupled to the fault alert module, sensor, and power supply. The detector/controller may be configured to monitor measurements provided by the sensor, and provide a warning signal to the fault alert module when a fault condition in the power line is detected.
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Citations
22 Claims
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1. A faulted circuit indicator (FCI) device, comprising:
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a fault alert module; a sensor configured to measure a current flowing within a power line based on a first inductive coupling with the power line; a power supply configured to provide at least one supply voltage based on a second inductive coupling with the power line; and a detector/controller module coupled to the fault alert module, sensor, and power supply, wherein the detector/controller is configured to monitor measurements provided by the sensor and provide a warning signal to the fault alert module when a fault condition in the power line is detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A device for establishing an inductive coupling with a power line, comprising:
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a housing; a laminate structure fixed to the housing and configured to at least partially confine the power line in a dimension transverse to a direction of current flow therein; a power coil, wound around a fixed end of the laminate structure, enclosed within the housing; and a sensing coil, wound around a laminate core electrically insulated from the laminate structure, enclosed within the housing and fixed between the power coil and the power line. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for monitoring a current flowing within a power line, comprising:
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receiving a magnetic field generated by a current flowing through a power line; generating, at a sensing coil, a measurement voltage induced by the received magnetic field; generating, at a power coil, a supply voltage induced by the received magnetic field; determining measurements of the current flowing through the power line based on the measurement voltage; identifying variations in the determined measurements of current; determining whether the identified variations are indicative of a fault condition; and providing a warning signal upon determining that the identified variations are indicative of the fault condition.
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Specification