Abstract: An intelligent electronic device (IED) includes a base module having a power monitoring circuit operative to monitor a parameter of a portion of a power distribution system and generate an analog signal representative thereof. The base module also includes a processor coupled with the power monitoring circuit, the processor having an analog to digital converter operative to convert the analog signal to a digital signal representative thereof. The processor operates to implement a first power management functionality and generate first power management data. At least one of a display and a communications interface couple with the processor and communicate the first power management data external to the IED. A first interface couples with the processor and the communications interface. The first interface operates to receive a first external function module.

Abstract: A system and method of specifying built and configured to order intelligent electronic devices (“IED's”) is disclosed. A customer interacts with an order processing interface to specify the type and model of IED they wish to purchase, any hardware options they wish installed and custom software to be loaded on the IED prior to shipment. The custom software includes object oriented frameworks which are functional applications custom developed by the customer. Once produced according to the customer's specifications, an IED is delivered to the customer which is capable of being used within the customer's specific application without further configuration by the customer.

Abstract: A revenue meter includes electronics for measuring the delivery of electrical energy from an energy supplier to a consumer through an electric circuit. An interface link connects to the revenue meter. An I/O and communications device connects through the interface link to the revenue meter. The I/O and communications device may also connect to a second electric circuit. The I/O and communications device uses a serial interface to communicate with the revenue meter. The I/O and communications device provides one or more of analog inputs and outputs, digital inputs and outputs, and communications ports.

Abstract: An intelligent electronic device (IED) for monitoring at least one power parameter in a power system is disclosed. The IED comprises at least one voltage input operative to be coupled with at least one power line in the power system and operative to sense at least one voltage in the power system. The IED further comprises at least one current input operative to be coupled with the at least one power line and operative to sense a current flowing through the at least one power line. The IED further comprises at least one analog to digital converter coupled to the voltage input and the current input and operative to produce digital samples indicative of the voltage and current. The IED further comprises a processor coupled with the at least one analog to digital converter and operative to calculate the at least one power parameter. The IED further comprises a power supply operative to supply power to the IED.

Abstract: An intelligent electronic device (IED) includes a power monitoring circuit operative to monitor a parameter of a portion of a power distribution system and generate an analog signal representative thereof. An analog to digital converter couples with the power monitoring circuit and operates to convert the analog signal to a digital signal representative thereof. A processor couples with the analog to digital converter and operates to implement power management functionality and generate power management data. The IED also includes a first non-volatile memory operative to store first program code for execution by the processor. The processor operates to access a second non-volatile memory in the external function module via the interface. The second non-volatile memory includes a second program code and operates to replace the first program code in the first non-volatile memory with the second program code.

Abstract: A revenue meter includes electronics for measuring the delivery of electrical energy from an energy supplier to a consumer through an electric circuit. A meter cover encloses the revenue meter. A keypad is located on the meter cover, and connects to the revenue meter to access the revenue meter without requiring removal of the meter cover.

Abstract: An intelligent electronic device (IED) is disclosed for managing, measuring and controlling the distribution of electric power. The IED includes an enclosure. The enclosure houses electrical circuitry and a transformer that includes windings. A resin is set within the enclosure. The resin electrically isolates the windings of the transformer from analog circuitry. A central processing unit is housed within the enclosure. The central processing unit is coupled to the analog circuitry and operative to calculate at least one power management function. At least one of a display and a communications interface is housed within the enclosure and coupled to the central processing unit.

Abstract: An apparatus for sensing the current in a power line of a power system and systems incorporating the apparatus are disclosed. The apparatus may comprise an enclosure providing a window operable to permit the passage of the power line therethrough. The apparatus may further comprise an active current transformer set within the enclosure and operative to produce a scaled version of the current. The apparatus may further comprise an amplifier coupled with the active current transformer and operative to reduce the phase shift and ratio error between the current and the scaled version of the current. The apparatus may further comprise a powering current transformer set within the enclosure and operative to receive power from the power line on a primary winding and deliver power on a secondary winding.

Abstract: A power management architecture for an electrical power distribution system, or portion thereof, is disclosed. The architecture includes intelligent electronic devices (“IED's”) with the capability to monitor and control attached slave devices, and provide capability to communicate between multiple devices in a variety of communication protocols. A master IED in the master/slave architecture performs power management functions on the data received from the slave IED's. Further, the IED's with master functionality provide web server capabilities, allowing a user to view processed data over an open Internet protocol, such as HTTP (“Hyper Text Transfer Protocol”).

Abstract: Power quality detection, monitoring, reporting, recording and communication in a revenue accuracy electrical power meter is disclosed. Transient events are detected by monitoring the wave shape of the electrical power and comparing deviations to a known threshold. Sags and Swells are detected by computing root mean square value over a rolling window and comparing the computed value with a known threshold. Harmonic frequencies and symmetrical components are quantified by a known algorithm and compared with a known threshold. Incoming waveforms are stored to memory. All recorded and computed data is moved to non-volatile storage via direct memory access transfer in the event that a power quality event jeopardizes the operating power of the meter. Further, the meter provides a power supply utilizing high and low capacitive storage banks to supply sufficient energy to survive short duration power quality events which jeopardize the meter's operating power.

Abstract: A power management integrated circuit for monitoring a parameter of a power system is disclosed. The integrated circuit comprises an analog front end operative to receive and at least one of amplify, attenuate and filter analog signals representative of at least one of voltage and current in a power system to produce modified analog signals. The integrated circuit further comprises an analog to digital converter coupled with the analog front end. The analog to digital converter is operative to produce digital signals representative of the modified analog signals. The integrated circuit further comprises logic coupled with the analog to digital converter, operative to receive the digital signals and produce a power parameter. The comprises a processor core. The integrated circuit further comprises a random access memory coupled with the logic and operative to store the power parameter. The logic is operative to implement a setpoint to detect when the power parameter is outside a determined range.

Abstract: A power management architecture for an electrical power distribution system, or portion thereof, is disclosed. The architecture includes intelligent electronic devices (“IED's”) with the capability to monitor and control attached slave devices, and provide capability to communicate between multiple devices in a variety of communication protocols. A master IED in the master/slave architecture performs power management functions on the data received from the slave IED's. Further, the IED's with master functionality provide web server capabilities, allowing a user to view processed data over an open Internet protocol, such as HTTP (“Hyper Text Transfer Protocol”).

Abstract: A power management architecture for an electrical power distribution system, or portion thereof, is disclosed. The architecture includes multiple intelligent electronic devices (“IED's”) distributed throughout the power distribution system to manage the flow and consumption of power from the system using real time communications. Power management application software and/or hardware components operate on the IED's and the back-end servers and inter-operate via the network to implement a power management application. The architecture provides a scalable and cost effective framework of hardware and software upon which such power management applications can operate to manage the distribution and consumption of electrical power by one or more utilities/suppliers and/or customers which provide and utilize the power distribution system.

Abstract: A power management architecture for an electrical power distribution system, or portion thereof, is disclosed. The architecture includes multiple intelligent electronic devices (“IED's”) distributed throughout the power distribution system to manage the flow and consumption of power from the system. The IED's are linked via a network to back-end servers. Power management application software and/or hardware components operate on the IED's and the back-end servers and inter-operate via the network to implement a power management application. The architecture provides a scalable and cost effective framework of hardware and software upon which such power management applications can operate to manage the distribution and consumption of electrical power by one or more utilities/suppliers and/or customers which provide and utilize the power distribution system.

Abstract: A power management architecture for an electrical power distribution system, or portion thereof, is disclosed. The architecture includes multiple intelligent electronic devices (“IED's”) distributed throughout the power distribution system to manage the flow and consumption of power from the system. The IED's are linked via a network to back-end servers. Power management application software and/or hardware components operate on the IED's and the back-end servers and inter-operate via the network to implement a power management application. The communications between the IED's and the back-end servers are facilitated through network security devices such as firewalls.

Abstract: An IED includes a power monitoring circuit operative to monitor a parameter of a portion of a power distribution system and generate an analog signal representative thereof. A processor couples with the power monitoring circuit and operates to receive the analog signal and at least one of quantify and report the monitored parameter. The processor further includes an integrated circuit, the integrated circuit having a non-volatile memory operative to store program code for the processor. A digital processing core couples with the non-volatile memory and operates to execute the stored program code to implement the quantifying and reporting functions. A volatile memory couples with the processing core and operates to store working data code for the digital processing core during execution of the stored program code.

Abstract: A cover for use on an electric meter is disclosed which includes an optical port which aids in transmission of optical signals from an optical transmitter, such as a light emitting diode, to an optical receiver, such as a photodiode or similar. The optical port further includes lenses located in the optical transmission path to focus the optical signal, either convergently or divergently, proximate to the optical receiver thereby improving signal reception.

Abstract: A revenue meter includes electronics for measuring the delivery of electrical energy from an energy supplier to a consumer through an electric circuit, a display and a cover. The electronics includes at least transducers, an analog to digital converter and logic. A meter cover encloses the revenue meter. An input device is located on the meter cover, and couples to the revenue meter. The function of the input device may be dependent on the information shown on the display. The display may be operable to generate information in graphical form.

Abstract: A phasor monitoring system and apparatus for use with a distribution system for electricity wherein periodic three phase electricity is distributed in a plurality of circuits. The phasor monitoring apparatus comprises a phasor transducer that has an input that receives analog signals representative of parameters of electricity in a circuit of the distribution system, an analog to digital converter that receives the analog signals and outputs a digital data signal representative of the analog signals, a processor coupled to the analog to digital converter to receive the digital data signal output from the analog to digital converter, programming on the processor that computes phasor data representative of the electricity in the circuit based on the digital data received from the analog to digital converter and provides a digital output representative of the phasor data, and a network-compatible port coupled to the processor to transmit the phasor data onto a data network coupled thereto.

Abstract: Power quality detection, monitoring, reporting, recording and communication in a revenue accuracy electrical power meter is disclosed. All recorded and computed data is moved to non-volatile storage via direct memory access transfer in the event that a power quality event jeopardizes the operating power of the meter. The meter provides a power supply utilizing high and low capacitive storage banks to supply sufficient energy to survive short duration power quality events which jeopardize the meter's operating power. The power supply also enables the meter to initiate and complete a shut-down routine allowing the storage of he recorded and computed data. Further, a separate power supply utilizing a capacitive storage bank is utilized to operate a communications device when the operating power is lost.