Abstract: A circuit breaker system and method having zone selective interlock features is provided. The system and method include the transmission of a selective interlock signal from a downstream circuit breaker to an upstream circuit breaker in the event a first or second fault condition is detected. The upstream circuit breaker upon receipt of this signal changes the response of the second circuit breaker depending on whether the first or second fault condition has been detected.

Abstract: A circuit breaker system and method having zone selective interlock features is provided. The system and method include the transmission of a selective interlock signal from a downstream circuit breaker to an upstream circuit breaker in the event a first or second fault condition is detected. The upstream circuit breaker upon receipt of this signal changes the response of the second circuit breaker depending on whether the first or second fault condition has been detected.

Abstract: A circuit breaker system and method having zone selective interlock features is provided. The system and method include the transmission of a selective interlock signal from a downstream circuit breaker to an upstream circuit breaker in the event a first or second fault condition is detected. The upstream circuit breaker upon receipt of this signal changes the response of the second circuit breaker depending on whether the first or second fault condition has been detected.

Abstract: A circuit breaker apparatus is provided and includes a trip mechanism which is coupled to an electrical circuit and which is configured to interrupt an operation of the electrical circuit when the trip mechanism is actuated, an electronic trip unit in signal communication with and configured to actuate the trip mechanism when pre-selected conditions are satisfied, and a rating plug coupled to the electronic trip unit and configured to operate in a first mode in response to a receipt of a transmitted control signal at the rating plug, and to otherwise operate in a second mode, the first and second modes being respectively associated with first and second ones of the pre-selected conditions to be correspondingly transmitted to the electronic trip unit by which the electronic trip unit determines whether to actuate the trip mechanism.

Abstract: A circuit breaker system and method having zone selective interlock features with separate restrained and unrestrained setting capability is provided. The system and method include the transmission of a selective interlock signal from a downstream circuit breaker to an upstream circuit breaker in the event of a fault condition. The upstream circuit breaker upon receipt of this signal changes the tripping response of the second circuit breaker to a restrained mode. The circuit breakers include features enabling the user to modify and adjust both the restrained and unrestrained trip curves associated with both the restrained and unrestrained modes of operation.

Abstract: A method and apparatus providing automatic circuit breaker identification to an electronic trip unit includes a processor and a configuration module comprising configuration data identifying the particulars of a circuit breaker and that is in operable communication with the processor.

Abstract: A circuit breaker apparatus is provided and includes a trip mechanism which is coupled to an electrical circuit and which is configured to interrupt an operation of the electrical circuit when the trip mechanism is actuated, an electronic trip unit in signal communication with and configured to actuate the trip mechanism when pre-selected conditions are satisfied, and a rating plug coupled to the electronic trip unit and configured to operate in a first mode in response to a receipt of a transmitted control signal at the rating plug, and to otherwise operate in a second mode, the first and second modes being respectively associated with first and second ones of the pre-selected conditions to be correspondingly transmitted to the electronic trip unit by which the electronic trip unit determines whether to actuate the trip mechanism.

Abstract: An electrical protection system includes a household electronic device and an electrical protection unit permanently interfaced therewith. The household electronic device is configured for detachable electric connection to an external household source and to utilize electrical power received from the household source. The electronic device operates according to an electrical power waveform, e.g., the device exhibits the electrical power waveform during operation. The electrical protection unit is configured to allow electrical power to pass from the household source to the electronic device if the power waveform is within a waveform profile, and to prevent electrical power from passing from the household source to the electronic device if the power waveform is outside a fault deviation of the waveform profile. The waveform profile is indicative of normal electrical operation of the electronic device, across its entire operational range.

Abstract: A circuit breaker system and method having zone selective interlock features with separate restrained and unrestrained setting capability is provided. The system and method include the transmission of a selective interlock signal from a downstream circuit breaker to an upstream circuit breaker in the event of a fault condition. The upstream circuit breaker upon receipt of this signal changes the tripping response of the second circuit breaker to a restrained mode. The circuit breakers include features enabling the user to modify and adjust both the restrained and unrestrained trip curves associated with both the restrained and unrestrained modes of operation.

Abstract: A circuit breaker system and method having zone selective interlock features is provided. The system and method include the transmission of a selective interlock signal from a downstream circuit breaker to an upstream circuit breaker in the event a first or second fault condition is detected. The upstream circuit breaker upon receipt of this signal changes the response of the second circuit breaker depending on whether the first or second fault condition has been detected.

Abstract: A method and apparatus providing automatic circuit breaker identification to an electronic trip unit includes a processor and a configuration module comprising configuration data identifying the particulars of a circuit breaker and that is in operable communication with the processor.

Abstract: A combined current and voltage sensor includes: a combined sensor shell; a current sensor located in the combined sensor shell, the current sensor disposed proximate to said first load strap; and a first voltage sensor located in the combined sensor shell, the first voltage sensor disposed proximate to the first load strap. A circuit breaker includes: a first load strap in electrical communication with an electronic trip unit; a breaker in electrical communication with the electronic trip unit; a current sensor disposed at the first load strap; and a first voltage sensor disposed proximate the current sensor.

Abstract: A trip unit is provided with a microcontroller and non-volatile memory, such as EEPROM (Electrically Erasable Programmable Read Only Memory) or Flash memory, for storing trip setting values, including initializing parameters, boot code, and operational parameters being capable of analog or digital programming depending on a switching instruction. This configuration enables one to change the trip unit's trip setting values after it is manufactured either remotely or locally. The present invention provides thus increased functionality to trip units by enabling upgrades and servicing of the trip unit by downloading replacement trip setting values to it and having multiple operational parameters (trip setting values) available.

Abstract: A circuit monitoring system for performing synchronized waveform capture. A waveform capture trigger communication network interconnects a plurality of monitoring devices. The system provides direct device to device trigger communication between monitoring devices in a synchronized group. Power system waveform data is stored in the monitoring device memory of all members of the synchronized group in response to a trigger event initiated by any monitoring device in the synchronized group. High speed trigger communication results in substantially simultaneous waveform capture among the members of the synchronized group.

Abstract: A current sensing system including a carrier strip, the carrier strip disposed so as to be associated with a current carrying conductor, wherein when an electrical current flows through the conductor, the electrical current flowing through the conductor creates a magnetic field having a magnetic flux, wherein the magnetic flux is responsive to the electrical current flow, a Hall effect sensor disposed relative to the carrier strip such that the Hall effect sensor is communicated with the magnetic field, wherein the Hall effect sensor generates an electrical signal responsive to the magnetic flux and a metering device in communication with the Hall effect sensor, wherein the metering device processes the electrical signal so as to create a processed signal responsive to the electrical current flow.

Abstract: A trip unit is provided with a microcontroller and non-volatile memory, such as EEPROM (Electrically Erasable Programmable Read Only Memory) or Flash memory, for storing trip setting values, including initializing parameters, boot code, and operational parameters being capable of analog or digital programming depending on a switching instruction. This configuration enables one to change the trip unit's trip setting values after it is manufactured either remotely or locally. The present invention provides thus increased functionality to trip units by enabling upgrades and servicing of the trip unit by downloading replacement trip setting values to it and having multiple operational parameters (trip setting values) available.

Abstract: A combined current and voltage sensor includes: a combined sensor shell; a current sensor located in the combined sensor shell, the current sensor disposed proximate to said first load strap; and a first voltage sensor located in the combined sensor shell, the first voltage sensor disposed proximate to the first load strap. A circuit breaker includes: a first load strap in electrical communication with an electronic trip unit; a breaker in electrical communication with the electronic trip unit; a current sensor disposed at the first load strap; and a first voltage sensor disposed proximate the current sensor.

Abstract: A circuit monitoring system for performing synchronized waveform capture. A waveform capture trigger communication network interconnects a plurality of monitoring devices. The system provides direct device to device trigger communication between monitoring devices in a synchronized group. Power system waveform data is stored in the monitoring device memory of all members of the synchronized group in response to a trigger event initiated by any monitoring device in the synchronized group. High speed trigger communication results in substantially simultaneous waveform capture among the members of the synchronized group.