Abstract:
An electrical distribution system having a load center for programmably and remotely controlling a plurality of circuit breakers, an expander unit coupled to the load center and a plurality of external switches for providing signals to the load center representative of the status of the switches. The load center contains a control module that continually receives inputs from the expander unit via an interface module. It also contains a keyboard and display for programming instructions for closing and opening the individual circuit breakers and for displaying the status of the circuit breakers. The interface module, coupled to the control module, causes the circuit breakers to open and close according to programmed instructions received from the control module or another external device. The expander unit contains a plurality of input circuits coupled to external switches. An expander circuit having a microprocessor receives signals from the input circuits, which are representative of the status of the external switches, and continually provides signals representative of the status of the switches to the load center for the load center to cause the circuit breakers to open and close as a function of the status of the external switches. The expander circuit also continually receives information from the load center about the status of the individual circuit breakers and provides, to a plurality of output terminals, signals representative of the status of the circuit breakers. The output terminals are coupled to a display device for displaying the status of individual circuit breakers. The output terminal also may be used to activate other devices.
Abstract:
For use within an electrical distribution system, a circuit arrangement is provided which includes a multitude of circuit breakers, each of which is operable by remote control in at least open and closed circuit positions. A circuit breaker control circuit is included and has a termination circuit which interprets circuit breaker control signals from an external switch device, a circuit breaker driver board which controls and monitors the multitude of circuit breakers, input means and a data path for receiving manual input instructions, a data port and a data path for receiving programming data from an external device, and a switch input data path, coupled to the termination circuit, for carrying circuit breaker switch instructions from the termination circuit. The control circuit responds to the manual input instructions, programming data and circuit breaker switch instructions according to a prioritization scheme.
Abstract:
In an electrical distribution system for controlling current paths through a plurality of associated circuit breakers, a programmable circuit arrangement operates the circuit breakers by remote control in at least the open and closed circuit positions. The circuit arrangement includes an array of termination points which are used in sets, such that each set includes a plurality of termination points, wherein each set receives a remotely generated control signal for commanding the circuit breakers to open or close. A control circuit includes a microcomputer, which is coupled to the array of termination points and responsive to the remotely generated control signal, for controlling the circuit breakers between the open and closed circuit positions. The microcomputer reads the termination points, via an X-Y grid, by polling the X axis and reading the Y axis.
Abstract:
In a panelboard for controlling current paths through a plurality of associated circuit breakers, a panelboard enclosure includes circuit breakers which each have a side facing a front side of the enclosure and including a multi-sectioned user interface circuit, that is configured to communicate with at least one of the circuit breakers. The interface circuit includes a first circuit section and a second circuit section. The first circuit section is located adjacent the back wall of the enclosure and behind the second circuit section, and the second circuit section includes communication means for allowing an operator at the front of the enclosure to communicate with the circuit breakers. This arrangement minimizes heat in the back of the enclosure, provides control and monitoring functions at the front of the enclosure and allows room for additional circuitry in the back of the enclosure. An automatic interpreter may be included in the enclosure for interpreting a coded message which provides the operator access to control the circuit breakers. Preferably, the coded message is received on a coded key card.
Abstract:
Apparatus and systems and methods are described herein that provide a controlled circuit breaker that selectively interrupts a flow current associated with a first electrical phase and an uncontrolled circuit breaker that selectively interrupts current associated with a second electrical phase. The controlled circuit breaker and uncontrolled circuit breaker are coupled to one another and configured to be installed in adjacent slots in a circuit breaker panel.
Abstract:
A modular sensor array has a housing at least one current sensor in the housing responsive to a current in an electrical conductor for developing a corresponding current signal and at least one voltage signal producing circuit in the housing for developing a voltage signal corresponding to a voltage present on an electrical conductor. A connector mounted on housing is configured for engagement with a mating connector of an external measurement device. A circuit delivers the current and voltage signals to the connector. A metering module has a housing, a metering circuit in the housing for receiving and processing at least one signal corresponding to an electrical quantity, and developing an output signal. A connector mounted to the said housing is coupled to the metering circuit, and configured for engagement with a mating connector at least one of a sensor array module and a mounting and connection base. Mounting structure is provided on the housing for removably mounting the housing to at least one of a sensor array module and a mounting and connection base. A mounting and connection base for a measurement device has a housing, first connectors on the housing for receiving a signal from a current sensor corresponding to a current in an electrical conductor and second connectors means on the housing for receiving a signal from a voltage sensor corresponding to a voltage in an electrical conductor. A circuit in the housing delivers voltage and current signals received at the first and second connectors to a further connector mounted on the housing. First and second mounting structures are provided for mounting the housing to a surface and for mounting a removable metering module.
Abstract:
An energy management loadpanel arrangement includes a loadpanel enclosure having a plurality of circuit breakers, each of which opens and closes in response to a control signal so as to interrupt an associated current path. A microcomputer generates the control signals to control the position of the circuit breakers and their associated current paths. The circuit breakers include a digital code circuit which is manually set to indicate the type of circuit breaker, for example, a one, two or three pole circuit breaker.
Abstract:
In an electrical distribution system for controlling current paths through a plurality of associated circuit breakers, a programmable circuit arrangement operates the circuit breakers by remote control in at least the open and closed circuit positions. The circuit arrangement includes a termination circuit for receiving different kinds of remote control signals, each of which is associated with one of the circuit breakers for commanding that each of the circuit breakers open or close its associated current path. The arrangement also includes a programmable controller, which responds to each of the different kinds of remote control signals and to a user-defined program indicating the kind of remote control signal which commands the associated circuit breaker, for generating control signals. An interface circuit then responds to the generated control signals by controlling the circuit breakers between the open and closed positions. The programmable controller may also include a display for indicating the status of the circuit breakers locally and/or remotely.
Abstract:
A lighting control system for a space equipped with lamps for illuminating the space comprises a power circuit for supplying power to the lamps, a controllable switch in the power circuit for turning the lamps on and off, an occupancy sensor for detecting motion within the space and generating a motion-detected control signal in response to the detection of such motion, and a timer for measuring a time-out interval following the generation of the motion-detected control signal by the occupancy sensor and producing a time-out control signal in response to completion of the measurement of the time-out interval. A processor receives the control signals from the occupancy sensor and the timer and produces a switch-off control signal for the controllable switch to turn the lamps off in response to the time-out control signal, modifies the time-out interval by a time-out offset value in response to preselected events, counts the number of times the switch-off control signal is produced, without the receipt of the motion-detected control signal, within a predetermined time following the end of the time-out interval, and decrements the time-out interval by the offset value in response to the count reaching a predetermined value.
Abstract:
A lighting control system is provided for a space that is equipped with multiple lamps for illuminating the space and multiple power circuits for supplying power to different groups of the lamps. The control system stores information relating to the past illumination of the lamps in each of the different groups. The system detects conditions or events that indicate that increased illumination of the space by the lamps is needed, and produces a control signal in response to the detection of a condition or event that indicates that increased illumination of the space by the lamps is needed. In response to the control signal, the system supplies power to at least one of the power circuits, which is selected on the basis of the stored information, to turn ON the group of lamps receiving electrical power from that power circuit.