Abstract: Disclosed herein are embodiments of systems and methods for determining the state of health of a generator battery set and its ability to supply generator starter motor with start-up energy by capturing a profile of voltage across terminals of the battery during a supply of electrical energy from the battery to the starter and comparing the captured voltage profile to a reference voltage profile to determine if a difference between the captured voltage profile and reference voltage profile exceeds an acceptable amount.

Abstract: Disclosed herein are embodiments of systems and methods for determining the state of health of a generator battery set and its ability to supply generator starter motor with start-up energy by capturing a profile of voltage across terminals of the battery during a supply of electrical energy from the battery to the starter and comparing the captured voltage profile to a reference voltage profile to determine if a difference between the captured voltage profile and reference voltage profile exceeds an acceptable amount.

Abstract: Methods and devices for mounting a sensor are presented herein. A temperature sensor assembly for a capacitor bank is disclosed that includes two opposing substrates, and a plurality of contact temperature sensors attached to each substrate. Each temperature sensor is configured to directly contact a surface of one of the capacitor cans in the capacitor bank and therefrom generate a signal indicative of the temperature of the capacitor can. A biasing member attaches the two substrates together. The biasing member is configured to selectively contract, such that the width of the sensor assembly is less than the gap distance between adjacent sets of tandem capacitor cans and the sensor assembly can insert between the sets of capacitor cans, and expand, such that the width of the sensor assembly is greater than the gap distance and the sensor assembly is tensioned against and thereby secured between the sets of capacitor cans.

Abstract: A method, system and device for synchronizing a time period over which energy measurements are accumulated for an energy monitoring system including a plurality of energy monitoring devices is described. The method comprises transmitting a first radio frequency packet from a time reference device via at least a first and a second of the plurality of energy monitoring devices to a third of the plurality of energy monitoring devices. The method further comprises adjusting a time register within the third energy monitoring device based on the reception of the packet. The method further comprises accumulating a measure of energy consumption by the third energy monitoring device of a load coupled with the third energy monitoring device. The method further comprises transmitting the measure of energy consumption from the third energy monitoring device via at least a fourth and a fifth of the plurality of energy monitoring devices to a data aggregation device.

Abstract: Methods and devices for mounting a sensor are presented herein. A temperature sensor assembly for a capacitor bank is disclosed that includes two opposing substrates, and a plurality of contact temperature sensors attached to each substrate. Each temperature sensor is configured to directly contact a surface of one of the capacitor cans in the capacitor bank and therefrom generate a signal indicative of the temperature of the capacitor can. A biasing member attaches the two substrates together. The biasing member is configured to selectively contract, such that the width of the sensor assembly is less than the gap distance between adjacent sets of tandem capacitor cans and the sensor assembly can insert between the sets of capacitor cans, and expand, such that the width of the sensor assembly is greater than the gap distance and the sensor assembly is tensioned against and thereby secured between the sets of capacitor cans.

Abstract: A system and method for detecting and responding to device tampering in an Energy Management (“EM”) device is disclosed. The EM device is provided with mechanisms to detect and indicate unauthorized tampering with the device. Further, in response to detected unauthorized tampering, the device may take actions to protect the integrity of data generated by the device as well as protect any confidential data stored within the device. Such actions may include preventing further device operation, generating warnings to the device owner/user, marking subsequently generated data as suspect, destroying stored confidential data, etc.

Abstract: A sensor apparatus for measuring power parameters on a power conductor, such as a high voltage transmission line may include a corona structure, an electronics assembly and a conductor mountable device. The corona structure may define an outer boundary surrounding the electronics assembly and the conductor mountable device. The corona structure may shield the electronic assembly and conductor mountable device from a corona produceable with the power conductor. The conductor mountable device may be a power parameter measurement device, such as a current sensor assembly. The current sensor assembly may be a split-core design that includes multiple transformer cores. The electronics assembly and the conductor mountable device may powered from a line voltage suppliable on the power conductor. Data may be wirelessly transmitted and received with the sensor apparatus.

Abstract: Systems and methods are disclosed for accurately measuring delivered or supplied electrical energy over an extended range of values. In one embodiment, a meter for monitoring the energy at a remote site includes a current sensor for measuring the current supplied to or from the site, and a microprocessor that generates output readings with an enhanced accuracy over a wide range of outputs in response to digital samples received from the sensor. In a one implementation, the meter is configured to provide readings with an accuracy that satisfies the standards IEC 60687 1A 0.5S, IEC 60687 5A 0.5S, ANSI C12.20 Class 20 0.5, and ANSI C12.20 Class 2/10 0.5. In another implementation, the meter is configured to provide readings with an accuracy that satisfies the standards IEC 60687 1A 0.2S, IEC 60687 5A 0.2S, ANSI C12.20 Class 20 0.2, and ANSI C12.20 Class 2/10 0.2.

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 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 is disclosed for mounting or dismounting a device on a mounting surface, for example, the mounting surface of a rail, a molded clip or the like. The apparatus includes a body. To accommodate attachment of the apparatus to the rail, at least a portion of the body can be movably positioned adjacent to the mounting surface. The apparatus also includes a locating feature connected with the body. The locating feature includes a first position that maintains a position of the body during a manufacturing operation and a second position that allows the body to move between an open position and a closed position, for example, after the manufacturing operation has been completed.