Abstract: A panel meter including an energy test pulse device that enables the panel meter to be used for revenue applications and eliminates the need for two separate meters, one for panel indication, and the other for energy and revenue applications. The electrical panel meter including at least one sensor configured for measuring an electrical parameter; at least one analog-to-digital converter coupled to the at least one sensor for converting the measured electrical parameter to a digital signal; a display for continuously displaying at least one electrical parameter; a processor configured to receive the digital signal and calculate an amount of energy consumed; and a test pulse circuit configured to receive the calculated amount and generate a plurality of pulses equal to the calculated amount, wherein each of the plurality of pulses is equal to a predetermined amount of energy.

Abstract: An intelligent electronic device having a terminal assembly for coupling the IED, e.g., a revenue meter, to a meter mounting socket. The assembly includes a housing including a generally planar, rigid base, the base including at least one opening and at least one circuit board having at least one electrically conducting terminal surface mounted thereon, the at least one electrically conducting terminal extending through the at least one opening of the base to mate with at least one matching jaw of a detachable meter mounting device coupled to the electrical circuit.

Abstract: A panel meter including an energy test pulse device that enables the panel meter to be used for revenue applications and eliminates the need for two separate meters, one for panel indication, and the other for energy and revenue applications. The electrical panel meter including at least one sensor configured for measuring an electrical parameter; at least one analog-to-digital converter coupled to the at least one sensor for converting the measured electrical parameter to a digital signal; a display for continuously displaying at least one electrical parameter; a processor configured to receive the digital signal and calculate an amount of energy consumed; and a test pulse circuit configured to receive the calculated amount and generate a plurality of pulses equal to the calculated amount, wherein each of the plurality of pulses is equal to a predetermined amount of energy.

Abstract: According to an aspect of the present disclosure, an electrical power meter, is disclosed. The electrical power meter includes a housing for containing electrical circuitry therein, the housing including at least one of voltage and current inputs, the housing including passages extending entirely therethrough, wherein the passages are configured to receive a CT lead therethrough, and wherein the CT leads are not electrically connected to the electrical circuitry therein; and a face plate operatively supported on a surface of the housing, wherein the face plate includes at least one of displays, indicators and buttons. It is envisioned that the through passages are located along a side of the housing.

Abstract: According to an aspect of the present disclosure, an electrical power meter, is disclosed. The electrical power meter includes a housing for containing electrical circuitry therein, the housing including at least one of voltage and current inputs, the housing including passages extending entirely therethrough, wherein the passages are configured to receive a CT lead therethrough, and wherein the CT leads are not electrically connected to the electrical circuitry therein; and a face plate operatively supported on a surface of the housing, wherein the face plate includes at least one of displays, indicators and buttons. It is envisioned that the through passages are located along a side of the housing.

Abstract: A panel meter including an energy test pulse device that enables the panel meter to be used for revenue applications and eliminates the need for two separate meters, one for panel indication, and the other for energy and revenue applications. The electrical panel meter including at least one sensor configured for measuring an electrical parameter; at least one analog-to-digital converter coupled to the at least one sensor for converting the measured electrical parameter to a digital signal; a display for continuously displaying at least one electrical parameter; a processor configured to receive the digital signal and calculate an amount of energy consumed; and a test pulse circuit configured to receive the calculated amount and generate a plurality of pulses equal to the calculated amount, wherein each of the plurality of pulses is equal to a predetermined amount of energy.

Abstract: According to an aspect of the present disclosure, an electrical power meter, is disclosed. The electrical power meter includes a housing for containing electrical circuitry therein, the housing including at least one of voltage and current inputs, the housing including passages extending entirely therethrough, wherein the passages are configured to receive a CT lead therethrough, and wherein the CT leads are not electrically connected to the electrical circuitry therein; and a face plate operatively supported on a surface of the housing, wherein the face plate includes at least one of displays, indicators and buttons. It is envisioned that the through passages are located along a side of the housing.

Abstract: A panel meter including an energy test pulse device that enables the panel meter to be used for revenue applications and eliminates the need for two separate meters, one for panel indication, and the other for energy and revenue applications. The electrical panel meter including at least one sensor configured for measuring an electrical parameter; at least one analog-to-digital converter coupled to the at least one sensor for converting the measured electrical parameter to a digital signal; a display for continuously displaying at least one electrical parameter; a processor configured to receive the digital signal and calculate an amount of energy consumed; and a test pulse circuit configured to receive the calculated amount and generate a plurality of pulses equal to the calculated amount, wherein each of the plurality of pulses is equal to a predetermined amount of energy.

Abstract: An intelligent electronic device (IED), e.g., an electrical power meter, having circuitry for reducing the burden placed on at least one current sensor of the device resulting in a highly accurate measurement by the at least one current sensor is provided. The circuitry of the present disclosure reduces the burden on the current sensor while providing amplification, e.g., gain control, to the input signal. The circuitry includes at least one current sensor outputting a signal to an operational amplifier (op amp) having a controlled variable feedback resistance. By employing an operational amplifier in the circuitry, the output of the current sensor will be at a near zero volts condition at all times thus reducing the burden on the current sensor.

Abstract: According to an aspect of the present disclosure, an electrical power meter, is disclosed. The electrical power meter includes a housing for containing electrical circuitry therein, the housing including at least one of voltage and current inputs, the housing including passages extending entirely therethrough, wherein the passages are configured to receive a CT lead therethrough, and wherein the CT leads are not electrically connected to the electrical circuitry therein; and a face plate operatively supported on a surface of the housing, wherein the face plate includes at least one of displays, indicators and buttons. It is envisioned that the through passages are located along a side of the housing.

Abstract: A system and method for communicating between serially connected electrical devices of a network is provided. The network includes a series of electrical devices, and fiber optic connectors between electrical devices of the series of electrical devices forming a closed communication ring in which output of each electrical device is communicatively connected to input of a subsequent electrical device of the series of electrical devices.

Abstract: A digital electrical power and energy meter integrates a primary processing module and a user interface module onto a single printed circuit board to reduce overall meter size, assembly time, and cost.

Abstract: A method and apparatus provides improved resolution in an analog signal, relative to the resolution of a digital-to-analog converter producing the signal. In one embodiment, a digital electrical power and energy meter varies a digital input to a digital-to-analog converter such that an average of the output of the digital-to-analog converter indicates a value with greater resolution than the instantaneous resolution of the digital-to-analog converter.

Abstract: A method and apparatus measures electrical power usage and quality, while mitigating the effects of noise on measured signals or parameters. Specifically, a digital electrical power and energy meter employs a method in which a processor averages a parameter, such as voltage or current, over a plurality of cycles of a time-varying signal, such as an AC electrical signal. The method employed by the meter samples a parameter over the plurality of cycles and computes the average of the samples corresponding to the same phase angle of the signal to produce an average signal.

Abstract: An intelligent electronic device (IED) having a gain control unit adapted to selectively regulate operating ranges of output signals of a sensing circuit of the device is described. In one embodiment, the IED is a digital electric power and energy meter, which operating ranges for supply voltages and supply currents of electrical services may be adjusted to match pre-determined ranges for input signals of a data acquisition system or a data processing module of the meter.

Abstract: A method and apparatus provides high-accuracy measurements of an electrical parameter across a broad range of parameter input values. In one embodiment, an intelligent electronic device (IED), e.g., a digital electrical power and energy meter, with a plurality of independently-adjustable gain factors measures a parameter, and calculates and stores calibration factors associated with known values of the measured parameter. The IED or meter applies the stored calibration factors when measuring unknown values of the measured parameter, to improve the accuracy of the measurement.

Abstract: A system and method for communicating between serially connected electrical devices of a network is provided. The network includes a series of electrical devices, and fiber optic connectors between electrical devices of the series of electrical devices forming a closed communication ring in which output of each electrical device is communicatively connected to input of a subsequent electrical device of the series of electrical devices.

Abstract: According to an aspect of the present disclosure, an electrical power meter, is disclosed. The electrical power meter includes a housing for containing electrical circuitry therein, the housing including at least one of voltage and current inputs, the housing including passages extending entirely therethrough, wherein the passages are configured to receive a CT lead therethrough, and wherein the CT leads are not electrically connected to the electrical circuitry therein; and a face plate operatively supported on a surface of the housing, wherein the face plate includes at least one of displays, indicators and buttons. It is envisioned that the through passages are located along a side of the housing.

Abstract: According to an aspect of the present disclosure, an electrical power meter, is disclosed. The electrical power meter includes a housing for containing electrical circuitry therein, the housing including at least one of voltage and current inputs, the housing including passages extending entirely therethrough, wherein the passages are configured to receive a CT lead therethrough, and wherein the CT leads are not electrically connected to the electrical circuitry therein; and a face plate operatively supported on a surface of the housing, wherein the face plate includes at least one of displays, indicators and buttons. It is envisioned that the through passages are located along a side of the housing.

Abstract: A panel meter including an energy test pulse device that enables the panel meter to be used for revenue applications and eliminates the need for two separate meters, one for panel indication, and the other for energy and revenue applications. The electrical panel meter including at least one sensor configured for measuring an electrical parameter; at least one analog-to-digital converter coupled to the at least one sensor for converting the measured electrical parameter to a digital signal; a display for continuously displaying at least one electrical parameter; a processor configured to receive the digital signal and calculate an amount of energy consumed; and a test pulse circuit configured to receive the calculated amount and generate a plurality of pulses equal to the calculated amount, wherein each of the plurality of pulses is equal to a predetermined amount of energy.