Abstract: In various implementations, a housing for a battery tester may include a body with a first side and an opposing second side. The first side may include a presentation member, such as a screen and an input member. The screen may include a touch screen and/or the input member may include a keypad, such as a keypad with arrows. The second side may be magnetic such that the battery tester can be coupled to a magnetic surface. The second side may, in some implementations, include holster(s) that allows clamps to be stored in the holster. The holster(s) may be removable.

Abstract: Accessories are removably received by a non-contact electrical detector for measuring an electrical characteristic without galvanic contact between the accessory and a non-contact sensor in the non-contact electrical detector. In some embodiments, an accessory is positioned in a gap between first and second extensions of the non-contact electrical detector. In some embodiments, an accessory includes first and second recesses on opposite sides of the accessory. First and second clamp arms of a non-contact electrical detector are inserted within the first and second recesses to removably hold the accessory. An external conductive prong of the accessory is electrically coupled, or is selectively electrically coupleable, with an internal conductive prong of the accessory. The external conductive prong is configured to be inserted into a receptacle of an electrical outlet.

Abstract: A clamp sensor includes: a pair of clamp arms that construct a ring-shaped sensor in a closed state and rotate about a rotational shaft provided near base ends of the clamp arms so that other ends of the clamp arms come in to contact and move apart; and a pair of operating arms that extend from the base ends of the clamp arms and are capable, by rotating about the rotational shaft so as to approach each other, of shifting the clamp arms into an open state. The operating arms are formed in arc shapes where, when looking along an axial direction of the rotational shaft, an outer edge of one operating arm and an outer edge of the other operating arm are curved in a same direction.

Abstract: An electrical machine includes an interconnection assembly that creates contact for a stator of the electrical machine, a busbar that creates contact for the interconnection assembly, a measurement printed circuit board that is arranged perpendicularly to an axis of rotation of the electrical machine, on a side of the interconnection assembly that is averted from the stator, wherein a field sensor is arranged on the measurement printed circuit board, and a flux concentrator that engages around the busbar and the field sensor.

Abstract: The present technology relates to an information terminal, an information processing device, and a program that make it possible to find out that an installation status has changed. The information terminal transmits information at predetermined time intervals. The information terminal causes information that is to be transmitted in a normal state of installation to be transmitted in a case where, after a return from a sleep state, a flag indicating whether or not an abnormal state of the installation has been detected indicates that the abnormal state has not been detected, and causes information different from the information that is to be transmitted in the normal state to be transmitted in a case where, after the return from the sleep state, the flag indicates that the abnormal state has been detected. The present technology can be applied to a home communication system.

Abstract: The invention relates to a method for operating an electric synchronous machine, having the steps of: —generating centered pulse-width-modulated switching signals for switching elements (T1 . . . T6) of half-bridges, wherein two switching elements (T1 . . . T6) are connected to a respective half-bridge in each case; second switching elements (T4 . . . T6) of each half-bridge are actuated in a complementary manner to the first switching elements (T1 . . . T3) of each half-bridge if a sufficient minimum measurement duration (TM) is thereby provided during which the switching signals of switching elements (T1 . . . T6) of two half-bridges lie at different potentials; —otherwise: —generating pulse-width-modulated switching signals for the switching elements (T1 . . . T6) of the half-bridges, said switching signals deviating from the center at least to such a degree that a sufficient minimum measurement duration (TM) is provided, wherein —the switching signals of the switching elements (T1 . . .

Abstract: An electric utility meter pedestal with provision for providing pre-construction power from underground service comprising an elongate support for a double compartment meter housing the upper portion of which accommodates a standard utility meter and the lower portion of which provides secure access to a pre-construction 110-volt duplex outlet and a breaker switch for that outlet. Access to the duplex outlet is made secure by virtue of an outer cover panel which can be put in place to fully cover and limit access to the outlet after the construction of the building has been complete. The 20 amp duplex outlet therefore provides 110 volt 20 amp service to workmen using tools during the construction phase as well as a convenient outdoor outlet for the homeowner after construction is complete.

Abstract: A meter collar includes a connection path to form an electrical connection between a distributed energy resource (DER) meter and line voltage wirings of an electric distribution system and a second connection path to form an electrical connection between the DER meter and neutral wires of the electric distribution system, a DER device, and a load. Further, the meter collar includes a third connection path within the meter collar to form an electrical connection between the DER meter and output voltage wirings of the DER device. Furthermore, the meter collar includes mating connectors electrically connected to a first end of a corresponding connection path to accept mating connectors of the DER meter. The meter collar also includes mating connectors electrically connected to a second end of the corresponding connection path to mate with the line voltage wirings, the neutral wires, and the output voltage wirings.

Abstract: Interconnection meter socket adapters are provided. An interconnection meter socket adapter comprises a housing enclosing a set of electrical connections. The interconnection meter socket adapter may be configured to be coupled to a standard distribution panel and a standard electric meter, thereby establishing connections between a distribution panel and a user such that electrical power may be delivered to the user while an electrical meter measures the power consumption of the user. A power regulation module is disposed between the interconnection meter socket adapter, and configured to selectively connect one or more energy sources or energy sinks.

Abstract: A meter casing can include a metal shield, and an outer casing that includes a display screen cavity that maintains a display screen, an optical port cavity that houses an optical port sensor assembly including a dongle, and a seal button cavity that houses a seal button and a sealing element. The seal button cavity can include one or more recess cavities formed in the communications module cover. The optical port cavity can include a circular port to securely mount the dongle. In addition, snap joints can be provided, which can hold an optical port cover that covers the optical port with respect to the optical port cavity.

Abstract: A measuring device with at least one sensor and at least one transmitter housing, the transmitter housing having at least one terminal space and an electronics space adjacent to the terminal space and connected via a partition wall, wherein at least a first electronic device for connecting supply and/or I/O lines is arranged in the terminal space and at least a second electronic device is arranged in the electronics space with electronics for controlling the sensor. The first and second electronic devices are electrically conductively connected to one another via a contacting unit. The second electronic device has a terminal unit which is connected to the contacting unit via a plug connection hat has a joining direction. The terminal unit is fixedly arranged in the joining direction and to float perpendicular to the joining direction such that it adapts to the position of the contacting unit when connecting to the contacting unit.

Abstract: An electricity meter assembly includes a meter and a module assembly. The meter includes a meter cavity, at least one electrical component within the meter cavity, and a module compartment having a module cavity. The module compartment is within the meter cavity and the meter cavity is isolated from the module cavity. The module assembly includes at least one supplemental board configured to supplement the at least one electrical component. The module assembly is removably positioned within the module cavity such that the module assembly is field-removable, and wherein the module assembly is hot pluggable with the meter.

Abstract: A method for configuring an electronic relay for an electric power distribution grid.

Abstract: A collapsible shield for shielding an electromagnetic field (“EMF”) shield has a tubular configuration with an open top and a ground connection to shunt away internally generated EMF's. The device further comprises an internal spring frame that enables the device to expand or contract.

Abstract: A noncontact voltage measurement apparatus includes a sensing electrode to which a voltage corresponding to an alternating current voltage is applied, a feedback electrode, a conductive movable body that is supported so as to be displaceable in accordance with the Coulomb force generated between the movable body and the sensing electrode and the Coulomb force generated between the movable body and the feedback electrode, an elastic force for causing the movable body to return to a predetermined neutral position acting on the movable body, a displacement detection unit configured to detect a displacement of the movable body, a voltage applying unit configured to apply an alternating current voltage to the feedback electrode, and a control unit configured to control the voltage to be output from the voltage applying unit such that a detection result of the displacement from the displacement detection unit approaches a predetermined reference value.

Abstract: An electricity meter assembly includes a meter and a module assembly. The meter includes a meter cavity, at least one electrical component within the meter cavity, and a module compartment having a module cavity. The module compartment is within the meter cavity and the meter cavity is isolated from the module cavity. The module assembly includes at least one supplemental board configured to supplement the at least one electrical component. The module assembly is removably positioned within the module cavity such that the module assembly is field-removable, and wherein the module assembly is hot pluggable with the meter.

Abstract: A power distribution system for providing a desired value of voltage regulation is presented. The system includes at least one power source, at least one sink, a distribution feeder configured to couple the at least one power source to the at least one sink. The system includes a plurality of modular voltage regulation units coupled to the distribution feeder, where each of the plurality of modular voltage regulation units includes a transformer including a primary winding having a first end and a second end and a secondary winding having a first end and a second end; and at least one switch coupled to the primary winding of the transformer, where the first end of the secondary winding is coupled to at least one of the first and second ends of the primary winding via the at least one switch. A method of operating a power distribution system is also presented.

Abstract: There is described a test block intended to be implanted in the circuit connecting an apparatus to be tested such as an electricity meter or a protective relay and a power source supplying the apparatus to be tested such as an intensity sensor and/or a voltage sensor, the test block comprising a base including a plurality of inner electric circuits capable of allowing the transmission of information from the power source to the apparatus to be tested and a protective cover intended to be removably assembled with the base in order to form a closed enclosure in which the inner electric circuits are housed. The base and the protective cover are configured such that the removal of the protective cover gives access to a receiving site delimited by the base and capable of receiving, by plugging, a test plug independent of the test block and electrically linked to a test equipment, in particular a voltmeter and/or an ammeter and/or a dummy current source.

Abstract: The invention relates to a test block intended to be implanted in the circuit connecting an apparatus to be tested such as an electricity meter or a protective relay and a power source supplying the apparatus to be tested such as an intensity sensor and/or a voltage sensor. The test block comprises a base including a plurality of inner electric circuits capable of allowing the transmission of information from the power source to the apparatus to be tested and a protective cover intended to be assembled in a dismountable manner with the base in order to form a closed enclosure in which the inner electric circuits are housed. The base and the protective cover are configured such that the removal of the protective cover gives access to a receiving site delimited by the base and capable of receiving by plugging a test plug independent of the test block and electrically linked to a test equipment, in particular a voltmeter and/or an ammeter and/or a dummy current source. A test appliance is also described.

Abstract: Interconnection meter socket adapters are provided. An interconnection meter socket adapter comprises a housing enclosing a set of electrical connections. The interconnection meter socket adapter may be configured to be coupled to a standard distribution panel and a standard electric meter, thereby establishing connections between a distribution panel and a user such that electrical power may be delivered to the user while an electrical meter measures the power consumption of the user. An interconnection meter socket adapter may be configured to be coupled to a DC-AC inverter, which may be coupled to various energy sources. As such, the energy sources are coupled to an electrical power system. In addition, a connector such as a flexible cable or flexible conduit containing insulated wires can be provided for connecting various energy sources and/or sinks.

Abstract: Bypass systems can be used to connect alternative energy sources to existing distribution panels without the need to replace or upgrade the distribution panel. Some such bypass systems may be integrated directly into an electric meter, while others can be connected to the meter but located laterally or otherwise away from the electric meter. The bypass busbars and breakers may in some devices be interchangeable, allowing for greater flexibility and capacity of the bypass systems.

Abstract: In at least one embodiment, a mobile measurement system includes a handheld device, a measurement device, and an optical sensing device. The measurement device and the optical sensing device are communicatively coupled to the handheld device. The handheld device receives measurement data that comprises at least one measured electrical parameter corresponding to a physical property of an external system. The measurement device generates measurement data that corresponds to a period of time. The measurement device communicates the generated measurement data to the handheld device. The optical sensing device generates optical data corresponding to an interface of the measurement device and the external system where the measurement data is being generated. The generated optical data corresponds to a particular time within the measurement period of time. The mobile measurement system associates and stores the generated optical data for the particular time with measurement data corresponding to the period of time.

Abstract: An interface between a sensor unit and an explosion resistant housing, wherein arranged in the explosion resistant housing is a measurement amplifier. In the interface, which is simply manufacturable and, despite that, meets the requirements of explosion protection, the measurement amplifier is arranged on a plug unit formed in the sensor unit and preferably protruding inwardly into the explosion resistant housing.

Abstract: A current tester includes: a probe, a computing device for converting a voltage drop across a component to a current, and an output device for signaling a presence or non-presence of current. The computing device stores a pre-determined voltage drop/current relationship for the component. A method for detecting current in a circuit includes: connecting a current tester to the component, measuring a voltage drop across the component, converting the voltage drop to a current via the current tester, and producing a signal by the current tester indicating a presence or non-presence of current in the circuit. A method for detecting current in a circuit may also comprises: connecting probes of a testing device to a component in the circuit; determining via whether the probes are properly connected to the component; and determining a voltage drop across the component to determine the presence or non-presence of current.

Abstract: A voltage measurement device includes an insulating body, for the use in medium- or high-voltage equipment or switchgears The insulating body includes an impedance divider having at least one high voltage impedance and at least one low voltage impedance in series, and with shielding electrodes. In order to optimize the circuit design for voltage measurement design in a given application and prevent the risk of malfunction when the same device it is used in multiple applications or at severe environmental or operating conditions, the device includes at least one high-voltage shielding electrode and/or at least one low-voltage shielding electrode which dimensions together establish a physical length of the impedance divider. The shielding electrodes surround the high and/or low voltage impedances, which provide a specified voltage division ratio and which are located inside or outside of the insulating body. An output of the impedance divider is connected to a shielded cable.

Abstract: A sensor assembly includes an outer housing and at least one high-impedance sensing device positioned within the outer housing. The sensor assembly also includes a buffering circuit having at least one wide bandgap semiconductor device positioned within the outer housing. The buffering circuit is operatively coupled to the at least one high-impedance sensing device.

Abstract: Disclosed is a hall sensor cover comprising: mag-mate terminal portions each having a mag-mate terminal having a coil insertion slit formed thereon and a power terminal pin extended toward one side direction of the mag-mate terminal; and a power connector portion having a base having mag-mate terminal insertion slots formed to insert the mag-mate terminal portions thereinto and power terminal insertion portions each adapted to insert the power terminal pin thereinto, wherein the power connector portion is coupled to the end portions of teeth of an insulator.

Abstract: A measuring device (1) with a housing (2) and two electronic devices (3, 4). To provide a measuring device whose electronics are modular, enabling easy adaptation to self-protection, the measuring device is provided with at least one encapsulated contact element (5) that is designed separately from the electronic units (3, 4) and the housing (2) and is arranged between the two electronic units (3, 4). Furthermore, the contact element (5) has at least one electronic transmission element (6) for creating an electric connection between the two electronic units (3, 4).

Abstract: A motor actuator includes a housing, and a plurality of output mechanisms accommodated in the housing. The housing includes a fastening unit that fastens a first case and a second case. Each of the plurality of output mechanisms includes a motor and a plurality of deceleration gears. The motor is supported by the housing. A final state deceleration gear is rotatably supported by the housing. The fastening unit is arranged in a first fastening unit formation range. The first fastening unit formation range is a range formed by connecting contours of a plurality of motors and contours of a plurality of final state deceleration gears, and is a range that surrounds the plurality of motors and the plurality of final stage deceleration gears.

Abstract: A shield for protecting a current transducer from noise may include a first annular ring that may be disposed adjacent to a first side of a current sensor. The shield may also include a second annular ring that may be disposed adjacent to a second side of the current sensor opposite the first side, such that the first and second annular rings each include magnetically permeable material.

Abstract: A current sensor for measuring a current supplied to a conductor includes a case which accommodates an electrical parts therein, and a cover attached to the case. A groove part is provided on an outer surface of at least one of the case and the cover to allow the conductor to pass through the groove part. When the cover is attached to the case, the conductor arranged on the groove part is sandwiched between the case and the cover. A width of the groove part becomes narrower toward an interior side thereof.

Abstract: A low fault current isolation arrangement senses a loss of voltage and automatically isolates and de-energizes a down live primary wire if overcurrent protection devices have not cleared the high impedance fault in an electric power distribution network. Incorporating an operator selectable time delay response, the low fault current isolation arrangement permits overcurrent protection devices to attempt to detect and shut down the affected conductor, and then isolates and shuts down the low current fault if the overcurrent devices are not successful. The isolation arrangement continuously monitors AC voltage as remotely provided by smart meters even after a fault location is de-energized, and serves as a back up, and not as a replacement, for existing overcurrent protection schemes. A host computer operates in conjunction with plural smart meters each coupled to an associated customer distribution transformer in conjunction with the fault isolator to detect and shut down high impedance faults.

Abstract: A sensor unit comprising a sensor, a sensor electronic connected to the sensor, and a first connection unit, which is connected to the sensor electronic, with the sensor, the sensor electronic, and the first connection unit being arranged in a tubular housing, and with the first connection electronic being able to contact a second connection unit embodied in a corresponding fashion, with a formed part with an internal contour being arranged in the housing in a torque-proof fashion, with the internal contour and an external contour of the first connection unit and/or the second connection unit being embodied at least sectionally corresponding to each other, and the internal contour comprising at least one fastening section, which is embodied such that any distortion of the first and/or second connection unit is prevented in reference to the formed part.

Abstract: An electricity meter is provided. The electricity meter includes a body and a cover including at least one mount for coupling the cover to the body. The at least one mount includes a receiving portion on an exterior surface of the cover and having an aperture extending therethrough, the receiving portion including a top, a bottom, and at least one cutout extending from the top towards the bottom.

Abstract: In a current detecting apparatus, a container member includes a substrate fixing portion, a core inner-edge positioning portions, and a lid member. The substrate fixing portion is a portion formed at a position outside an outer edge of a magnetic core, and to which a first portion of a circuit board is fixed. Two of the core inner-edge positioning portions come into contact with the magnetic core, and come into contact with the circuit board. The first portion, the second portion, and the third portion surround a magnetoelectric device, such as a Hall element, that detects a magnetic flux in a gap portion of the magnetic core. The lid-side substrate holding portion, with the container-side substrate holding portion, holds the circuit board tightly.

Abstract: An electricity meter comprising a box defining a terminal block for connection to cables and a removable cover covering the terminal block at least in part, wherein the meter includes fastener means arranged to hold said cover on a front face of the box while uncovering the terminal block and while leaving visible an inside face of the cover including means for explaining its electrical connection.

Abstract: An ultra-slim sensor device, comprising: a sensor element; lead wires (or lead frames) connected to the sensor element; a support for protecting the sensor element and the lead wires disposed therein; and upper and lower films disposed on upper and lower sides of the sensor element, the lead wires and the support to insulate them, wherein a thickness of the support is greater than that of the sensor element in order to protect the sensor element and the lead wires from external shocks, and the support gradually becomes thin toward the end thereof such that the upper and lower films come into contact with each other in order to remove a space between the upper and lower films.

Abstract: A current sensor includes: a housing that holds a busbar to which a current is applied and a core arranged around the busbar; a circuit board fixed to the housing in the state of being arranged to face the housing; and a detection element for detecting the current; wherein the detection element has an element main body held in the housing and plural connection terminals fixed in through-holes in the circuit board, and a plate-like member provided with guide holes in which the connection terminals are inserted and which have a diameter reduced from the side of the housing toward the side of the circuit board is provided on a surface facing the housing, of two surfaces of the circuit board.

Abstract: The invention relates to a display device (54) for an actuator having at least one mechanical display element (10, 11) and a variable speed gear unit, particularly a signal gear unit designed as a variable speed gear unit, having at least two gears with differing transmission ratios, wherein there is a mechanical switching arrangement with which the different gears and/or transmission ratios of the variable speed gear unit can be selected and/or switched even when the display device is mounted operationally ready in a housing without intervention into the housing and without opening the housing from outside, and/or wherein the resolution of the display device (54) and/or the movement of the at least one display element (10, 11) on the actuating path to be displayed of a respective actuator and/or a respective armature can be selectively adjusted. The invention furthermore relates to an actuator having a said type of display device (54).

Abstract: An arrangement is proposed for electrically conductively connecting an electrical component which is mounted in a housing containing oil, to an electrical unit, and mounted in which between the component and the unit at least two cores are arranged which consist of an electrical conductor and an insulation surrounding the conductor. The housing includes an opening which in the position of use is closed in an oil-tight moisture-tight manner which has at least one passage hole (9) for passing the cores (4,5) therethrough. For the cores (4,5) is provided a core for each in which material impermeable to oil is mounted between the conductor and its insulation, in such a way that all hollow spaces existing within the space surrounded by the insulation. The cores (4,5) are guided through at least one sealing plug which tightly surrounds the cores, and the sealing plug is in the position of use mounted in a passage hole (9) of the passage (7) in an oil-tight and moisture-tight manner.

Abstract: Systems and methods for detecting the removal of a meter cover are provided. For example, a tamper-detect energy meter may include metering circuitry, a processor, a tamper detect switch, and a cover with a switch interface surface. The tamper detect switch may be triggered from an open circuit state to a closed circuit state as the switch interface surface of the cover contacts the tamper detect switch during removal.

Abstract: The invention provides a sensor device comprising a nanowire electrode and a faradic shield, said faradic shield is adapted to prevent unwanted capacitive charging current in said sensor. The nanoelectrode device design with a metallic Faradic Shield layer significantly reduces the noise levels, increase the sensitivity of the sensors and allow measurements to be undertaken in less than 1 second.

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 battery terminal includes a housing, a bus bar, a first connector, a second connector and a current detector. The housing is made by resin. The bus bar is integrally provided with the housing. The first connector is provided on the bus bar and is adapted to be connected with a battery. The current detector is provided on the bus bar. The second connector is provided on the bus bar. The second connector is adapted to be connected with a harness, and is disposed at a position offset from a straight line passing the first connector and the current detector.

Abstract: The invention provides a method of determining a parameter of a measured electronic device for purposes of programming the device or determining its functionality. A stored reference profile of a reference electronic device includes a respective frequency at each of a plurality of respective temperatures. Heat is simultaneously transferring heat to or from the reference and measured electronic devices while recording a frequency provided by the reference electronic device and a corresponding frequency provided by the measured electronic device at each of a plurality of instances in time. A temperature of the reference electronic device is determined based on the frequency detected for the reference electronic device and the corresponding temperature within the reference profile. The frequency detected from the measured electronic device is then correlated with a temperature the reference electronic device used as the temperature of the measured electronic device.

Abstract: A detachable current and voltage sensor provides an isolated and convenient device to measure current passing through a conductor such as an AC branch circuit wire, as well as providing an indication of an electrostatic potential on the wire, which can be used to indicate the phase of the voltage on the wire, and optionally a magnitude of the voltage. The device includes a housing that contains the current and voltage sensors, which may be a ferrite cylinder with a hall effect sensor disposed in a gap along the circumference to measure current, or alternative a winding provided through the cylinder along its axis and a capacitive plate or wire disposed adjacent to, or within, the ferrite cylinder to provide the indication of the voltage.

Abstract: A utility meter cover and complementary base are disclosed, the cover including a window section and a shroud. The shroud is for covering a complementary portion of a meter base, and includes: a radially extending base portion; an axial extension extending from the base portion, the axial extension for obstructing access to the complementary portion of the meter base; and a key member extending axially from the base portion, the key member having a bidirectional tab for engaging a slot in the complementary portion of the meter base.

Abstract: An apparatus (100) adapted to measure Alternating Current flowing through an electricity supply distribution unit (204) having a plurality of distribution cables (202). The apparatus (100) includes a plurality of current measuring devices (102), each of the current measuring devices (102), in use, measuring current flowing through one of the distribution cables (202), at least some of the current measuring devices (102) being mounted on a rigid/semi-rigid body (104), and a device configured to store and/or transfer information representing current measured by at least one of the current measuring devices (102).

Abstract: An implementation of a system, device and method for projecting a visual indicator against a surface is provided. A display projection system in a handheld sensor device (e.g. a handheld wall scanner) projects a static or computer-controlled dynamic pattern of light onto a surface being scanned to indicate a specific feature, such as existence of solid structures of wood, metal or plastic, electric or magnetic fields, or a disturbance of a field. The projected light may be controlled by a computer via an aperture to allow flexibility in what is projected, such as icons, lines, graphics, characters and colors.

Abstract: A multi-meter for a test probe includes a main body, two test probes and a clamping means. The test probe includes a test pin, a connecting portion, and a lead electrically connected between the test pin and the connecting portion. The connecting portion is inserted into the main body and electrically thereto. The clamping means comprises a liftable cover and a clamping portion formed on the liftable cover. One end of the liftable cover is pivotally connected to the main body. The clamping portion is configured to clamp the test pin. By this structure, the test pin is clamped by the camping portion to help a user carrying out the measurement.