Abstract: An elongated, flexible composite gasket member having a knitted wire mesh rope at least partly impregnated with a soft, tacky, flowable, pre-cured polyurethane gel for use in a stuffing tube assembly. The stuffing tube assembly is used in a deck or bulkhead of a ship. The stuffing tube comprises a cable having insulation on a surface thereof, a metallic shielding jacket, and conductors therein, the cable having an exposed section of metallic shielding and non-exposed section; a metallic stuffing tube with an inner cable channel and an at least partly threaded gland nut receiver space, and a constriction between the gland nut receiver space and the inner channel; a gland nut adapted to threadably engage the gland nut receiver space; and a; wherein the cable passes through the gland nut and stuffing tube with the exposed section substantially wrapped in the elongated flexible composite gasket member the gland nut above the elongated flexible composite material and the constriction below.

Abstract: A self-wrapping nonwoven sleeve for routing and protecting elongate members and method of construction thereof is provided. The sleeve includes a non-woven wall having a thickness extending between inner and outer sides. The wall has opposite edges extending along a length of the sleeve between opposite ends. The opposite edges are biased into a self-wrapped configuration by heat-set material of the nonwoven wall to define a tubular cavity. The non-woven wall includes first and second portions extending between the opposite edges. The first portion and second portion have respective first and second thicknesses extending between the inner and outer sides, wherein the first thickness is greater than the second thickness and wherein the first portion provides flexibility to the wall and the second portion is heat set to bias the wall into its self-wrapped configuration.

Abstract: A feedthrough device (10) for an explosion-proof housing constructed as a “flameproof enclosure” of the flame protection type. The feedthrough device (10) is arranged in a wall opening of the housing and forms a flameproof gap therein. A rigid component (11) is arranged through said gap to be displaced in its direction of extension relative to the wall. The feedthrough device (10) has a clamping body unit (20), a sleeve (21), a cap (22) and a thrust collar (23). The sleeve (21) and the cap (22) can be screwed together. Axial forces are transmitted between the clamping body unit (20) and the cap (22) via the thrust collar (23). The sleeve (21) exerts a radial clamping force on the clamping body unit (20), which is fully penetrated by a conduit (25) along a longitudinal axis (L), in which conduit a longitudinal section of a component (11) is arranged.

Abstract: An outdoor electrical device cover includes a lid having top, bottom and side walls with a laterally projecting flange having a peripheral skirt. A continuous channel is formed between the skirt and an inner rail of the lid flange. The lid is hinged to a base which includes top, bottom and side walls having a peripheral flange with a continuous channel. When the lid is closed, an inner rail of the lid flange seats in the base channel and an outer rail of the base flange seats in the lid channel to seal the electrical device from water penetration. At least one frangible panel provided in a wall of the lid is broken away to open a portal for an electric cord passageway into the interior of the cover when the lid is closed. A canopy arch flange overlies the passageway to shield against water entering through the open passageway.

Abstract: An electrical box location indicator system for use when installing a wall panel over a mounted electrical box. An electrical box is fixedly attached to a structural wall member such that a portion of a box sidewall is directly touching a member side face orthogonal to a member front face. A first tab and a second tab project outwardly and away from a box front lip such that both tabs are coplanar with the box sidewall and orthogonal to the member front face. The first tab and the second tab push against a rear panel surface of the wall panel to create a bow in the wall panel that indicates the location of the electrical box. The first tab and the second tab are snapped or cut off after processing of the wall panel is completed.

Abstract: A mounting tray for a supporting and electrical component relative to an opening in a wall can include a rear wall that defines an opening. A sidewall can extend outwardly from the rear wall and collectively define a pocket with the rear wall. The sidewall can have an outer lip. An outer flange can extend around the sidewall at a position intermediate to the outer lip and the rear wall from a first location at the sidewall to a second location at an outer perimeter. The outer perimeter of the outer flange is offset inboard of the opening in the wall in an installed position.

Abstract: One aspect is a method of coupling an insulator to a surrounding ferrule in an implantable medical device. An insulator is provided having a plurality of conducting elements extending therethrough. The insulator is placed with conducting elements within a ferrule having a frame-like shape surrounding the insulator along an interface. The insulator is heated with a first laser until raising the temperature of insulator to a first temperature level. The ferrule is welded to the insulator along the interface with a second laser once the insulator has reached the first temperature.

Abstract: A mounting plate and a security device using the same are provided. The mounting plate is for being fixed to a surface, wherein a mounting device is hanged up on the mounting plate, and the mounting plate comprises a first conductive sheet and a second conductive sheet electrically connected to a first electrode of an exterior power and a second electrode of the exterior power respectively. When the mounting device is hanged up on the mounting plate, the exterior power is electrically connected to the mounting device through the first conductive sheet and the second conductive sheet.

Abstract: The present invention related to an iron bus bar coated with copper and a method of manufacturing the same. The present invention provides an iron bus bar including an iron core and a copper layer applied on the iron core, and a method of manufacturing the same. According to the present invention, an iron bus bar having high strength and durability as well as excellent electrical conductivity can be manufactured at low cost.

Abstract: An electrical power line tower which is resistant to wind induced vibration damage supports vertically spaced apart electrical conductor-mounting cross arms extending from the tower, each cross arm having a mounting bracket welded to the tower end of the arm and the mounting bracket being attached to the tower via bolts. First clamping brackets on each conductor supporting arm are positioned between the tower and conductor, the first clamping brackets including cross arm-engaging bolts preventing bracket sliding along the arms and bracing poles extending diagonally upwardly between the first clamping brackets on each conductor supporting arm and a bolt securing the mounting bracket of the next higher arm along the tower. The length of the bracing poles is adjustable for providing the desired bracing support to the conductor support arms to which the bracing poles are attached.

Abstract: A cord reel including a body having two side walls on opposing sides for receiving a cord therebetween, at least one hole within the body extending inward from each of the side walls, and wherein the body is adjustable to increase or decrease a distance between the two end walls.

Abstract: A multiple cable strain relief and electronic assembly having such multiple cable strain relief includes a body, a plurality of cable cutouts and a compression member. The body has at least two spaced apart sidewalls thereby defining a cavity between the sidewalls. The plurality of cable cutouts are in each of the sidewalls. Each cable cutout in one of the sidewalls is aligned with a cable cutout in the other of sidewalls thereby defining a cable cutout pair. The compression member has a retention position that is at least partially extending into the cavity. With the compression member in the retention position a cable extending though a cable cutout pair is deflected in the cavity to retain that cable between the sidewalls and the compression member.

Abstract: A cryogenic electrical power feed-through assembly includes a contact header assembly. The contact header assembly includes a feed-through body forming a feed-through body cavity disposed therethrough extending between a first opening end to a second opening end. A first contactor plate assembly is disposed at and hermetically seals the first opening end of the feed-through body with a first electron beam weld formed between the first contactor plate and the first opening end. A second contactor plate assembly is disposed at and hermetically seals the second opening end of the feed-through body with a second electron beam weld formed between the second contactor plate and the second opening end. Each contactor plate assembly includes a contactor plate, a plurality of insulative bushings hermetically sealed to and extending through the contactor plate, and a plurality of contact pins hermetically sealed to and extending through the plurality of insulative bushings.

Abstract: A protection relay is provided for protection of an electric network. The protection relay measures an electric signal in the network, converts the measured signal to a frequency domain representation of the measured signal, and generates a measuring phasor based on the frequency domain representation, where the phase rotation of the measuring phasor is dependent on one or more frequency components present in the measured electric signal. The protection relay compares the measuring phasor to the reference phasor, where the phase rotation of the reference phasor is based on either a nominal or a measured frequency of the electric network, and launches protection if the comparison of the of the measuring phasor and the reference phasor fulfils a predetermined criterion.

Abstract: A method and apparatus for managing DC arc faults. At least a portion of the method is performed by a controller comprising at least one processor. In one embodiment, the method comprises identifying, based on a first signature of a power converter, an arc fault; determining, based on the first signature, a type of the arc fault; and performing an action on the power converter based on the type of the arc fault.

Abstract: A method for detecting a short circuit on a multiphase electrical energy supply network line includes recording current and voltage sampled values and generating a fault signal upon a fault evaluation performed by an electrical protection device indicating a short circuit. Instantaneous reference voltage values are calculated from instantaneous current and voltage sampled values recorded before the short, and instantaneous comparative voltage values are calculated from instantaneous current and voltage sampled values recorded before the short and instantaneous current and voltage sampled values recorded during the short, to generate a fault signal quickly. Then a rectified reference voltage value is calculated from consecutive instantaneous reference voltage values, and a rectified comparative voltage value is calculated from consecutive instantaneous comparative voltage values.

Abstract: A method for operating a ground fault circuit interrupter. In accordance with an embodiment, an operating parameter of the ground fault circuit interrupter can be adjusted in response to an alternating current line signal and a reference signal. In accordance with another embodiment a plurality of indicator signals are generated in response to an alternating current signal. The indicator signals are used to generate one or more control signals and at least one of the control signals is used to control a control a ground fault circuit interrupter.

Abstract: Methods and apparatuses for providing a solution for incompatibility between nonsinusoidal waveform uninterruptible power supply (UPS) systems and active power factor correction (PFC) loads are disclosed. An embodiment of the invention includes generating a nonsinusoidal signal waveform (e.g., a voltage waveform), to be delivered to the load, with a pulse width modulation (PWM) duty width, sampling the nonsinusoidal signal waveform to collect output signal samples, and adjusting the duty width to control the nonsinusoidal signal waveform as a function of the output signal samples to deliver a desired signal characteristic (e.g., RMS signal level) to the load. In embodiments of the invention, the output duty width is adjusted differently in cases of rising and falling power consumption, respectively, by the load.

Abstract: A power cord apparatus for remotely detecting excessive operational parameters in an alternating current (AC) powered machine (e.g., dehumidifiers, air conditioners, refrigerators, and Computer Numerically Controlled (CNC) machines) is provided. The power cord apparatus includes a cooperative remote parametric sensing device (e.g., heat sensing, vibration transducer) in the vicinity of the electrically powered machine.

Abstract: According to one embodiment, an over-voltage prevention device is provided between a secondary-winding side of a wound-rotor induction machine and a frequency converter configured to excite the secondary-winding side of the wound-rotor induction machine through a three-phase excitation power supply line. The over-voltage prevention device includes a first short-circuit device having a function of short-circuiting between phases of the excitation power supply line, and a second short-circuit device having a function of short-circuiting between phases of the excitation power supply line with a short-circuit impedance greater than a short-circuit impedance of the first short-circuit device.

Abstract: An exemplary method and system are disclosed for coordinated transfer of control in a substation system having IED or logical devices/servers using GOOSE messages with preconfigured data models with logical nodes containing one or more data objects including private data objects (DO) connected in the substation communication network. The method for transfer of control can be illustrated for hot-standby device management and for other applications such as logical isolation of merging unit in a substation and load sharing between IEDs. The method can be used for devices that do not have MMS stack.

Abstract: A DC voltage circuit breaker includes a first to fourth nodes, a first interrupter disposed between the first node and the fourth node, a second interrupter disposed between the fourth node and the third node, a pulse generator circuit disposed between the fourth node and the second node, the pulse generator circuit having a capacitor connected in parallel with a series circuit of an inductor and a switch, and a first energy absorber disposed between the third node and the second node.

Abstract: A protection circuit is connected between a power supply for providing a working voltage and a load. The protection circuit comprises an interface, a detecting module connected to the interface, a control module, and a switch module. The control module generates a plus width modulation (PWM) signal with a predetermined duty cycle when the interface interconnects with the load. The switch module periodically turns on and turns off based on the PWM signal with the predetermined duty cycle.

Abstract: Provided is a circuit protection device including a plurality of sheets selectively formed with at least one coil pattern, at least one withdrawal electrode, at least one hole filled with a conductive material, and at least one capacitor electrode and at least two inductors and at least two capacitors, in which the at least one coil pattern forms one inductor and a capacitor is formed between the capacitor electrode and the coil pattern.

Abstract: Overcurrent protection devices and methods for electronic modules. In some embodiments, an overcurrent protection system can be implemented for an electronic circuit. The system can include a detection unit configured to detect an overcurrent condition associated with the electronic circuit and generate an overcurrent signal indicative of the overcurrent condition. The system can further include a consumption system in communication with the detection unit. The consumption system can be configured to consume and thereby reduce a current in a path associated with the electronic circuit upon receipt of the overcurrent signal. The consumption system can be further configured to not consume the current when the overcurrent signal ceases.

Abstract: A method includes: detecting one of a short-to-ground condition and a short-to-supply condition at an output node; after a delay, selectively activating a feedback control transistor according to the detecting; detecting a first current passing through a first transistor using a second transistor sized to be smaller than the first transistor; mirroring the detected current using a plurality of transistors to form a feedback current; and providing the feedback current to a gate electrode of the first transistor according to the selectively activating the feedback control transistor.

Abstract: In an embodiment, an electrostatic discharge (ESD) circuit for providing protection between a first node and a second node includes a first MOS device having a first source/drain coupled to a first node, and a second source/drain coupled to an intermediate node. The ESD circuit also includes a first capacitor coupled between a gate of the first MOS device and the first node, a first resistor coupled between the gate of the first MOS device the intermediate node, a second MOS device having a first source/drain coupled to the intermediate node, and a second source/drain coupled to the second node, a second capacitor coupled between a gate of the second MOS device and the first node, and a second resistor coupled between the gate of the second MOS device and the second node.

Abstract: System for balancing an association in series of elements for generating and/or storing electrical energy has full bridge inverters (OPC1, OPC2, OPCN), with two inverter arms connected in parallel between two end ports and with two switches (Th1, Tb1; Th2, Tb2) connected in series by a median point (P11, P12) of the arm; a plurality of connectors for connecting the two end ports of each full bridge inverter to a respective element (CA1, CA2, CAN, PV1, PV2, PVN) of said association in series; and a magnetic coupler (NM) formed by a magnetic core on which a plurality of windings (W1, W2, WN) is formed, each winding connected to the median points of the arms of one of said inverters. A series of elements (CA1, CA2, CAN) for electrochemical storage of electrical energy and a series of photovoltaic cells (PV1, PV2, PVN) provided with such a balancing system are also disclosed.

Abstract: A battery system includes at least one battery unit, and a first battery management system that is operable to control the at least one battery unit. The first battery management system includes a first identification setup that is manually adjustable and is visible on an outside of the first battery management system, and the first battery management system is enabled to effect communication based on the first identification setup.

Abstract: A power control system includes an event data bus configured to carry event information. Several power supply managers are coupled to the same event bus. Each power supply manager has one or more point of load (POL) regulators assigned to it. Each power supply manager communicates event information with other POL power supply managers over the event data bus.

Abstract: This disclosure describes techniques for operating a corded electronic device in which a battery and a power control unit manage power draw from an external power source electrically coupled to the corded electronic device using a physical cord, such as a universal serial bus (USB) cable. The power control unit automatically supplements an electrical current continuously drawn by the corded electronic device from the external power source with an electrical current from the battery, when needed. Moreover, the power control unit operates to limit the current drawn from the external power source and the physical cord so as to ensure the current does not exceed any limitations or requirements associated with the external power source or the physical cord.

Abstract: An electrically programmable load having an impedance value dependent on a received control word. The electrically programmable load has several parallel load units. Each load unit has one or more load unit element who receive a control word component of the control word and have a load unit element impedance value which depends on a control word component value of the control word component, where the control word component value is one of three or more different biasing values.

Abstract: A method of providing electrical power using a split bus configuration includes receiving a first direct current at a positive bus of a split bus, where the first direct current originates from a first fuel cell segment. A second direct current is received at a negative bus of the split bus, where the second direct current originates from a second fuel cell segment. A third direct current is also received at the split bus such that a combined direct current is formed including the first direct current, the second direct current, and the third direct current. The third direct current originates from an alternative direct current (DC) source. The combined direct current is provided to an inverter such that an alternating current is generated for a load.

Abstract: A load leveling system and a method for a power system are capable of attaining load leveling in a distribution substation unit. The load leveling system is for a power system with a controller having a major customer and lower transforming apparatus, and with a customer connected to the lower transforming apparatus via a low-voltage line. The system also has a communication unit between the customer and its own system, and control use time zones of devices within the customer, as well as an electric demand prediction unit, and a first load leveling processing unit. By employing such a system, it becomes possible to provide a load leveling system for a power system that is capable of realizing load leveling of both a distribution substation unit and a pole transformer unit.

Abstract: A wind turbine (8) for controlling power oscillations on a grid of a power system (28). The wind turbine (8) comprises rotor blades (12) for turning by the wind, an electric generator (20) rotatably coupled to the rotor blades (12), a power converter (24) responsive to electricity generated by the electric generator (20), the power converter (24) for converting the generated electricity to a frequency and voltage suitable for supply to the power grid (28), and the power converter for regulating voltage on the grid supplemented by modulating real power for damping the power oscillations.

Abstract: An electrical appliance configured to receive power and a power consumption signal from an electrical power distribution system comprises an energy storage device and a controller. The energy storage device includes a heat storage medium and a heater. The heater is configured to heat the heat storage medium at a heating rate. The controller adjusts the heating rate based on the power consumption signal.

Abstract: A power converter circuit includes output terminals configured to receive an external voltage. A series circuit includes a number of converter units, each including input terminals configured to be coupled to a DC power source and output terminals configured to provide an output current. The series circuit is connected between the output terminals of the power converter circuit. A synchronization circuit is configured to generate a synchronization signal. The power converter circuit can be operated in a normal operation mode. In the normal operation mode, the synchronization circuit is configured to generate the synchronization signal dependent on the external voltage. In the normal operation mode, at least one converter unit of the plurality of converter units is configured to receive the synchronization signal and to regulate a generation of the output current such that a frequency and/or a phase of the output current is dependent on the synchronization signal.

Abstract: Energy storage devices, servers, and methods for controlling the same are disclosed. The energy storage device can include at least one battery pack, a network interface configured to exchange data with a server, and a connector that receives alternating current (AC) power from an internal power network or outputs AC power to the internal power network. Energy storage device can also include a power converter configured to convert the AC power from the internal power network into direct current (DC) power based on the information about the power to store when information about power to store is received from the server, or, convert DC power stored in the battery pack into AC power based on the information about the power to output when information about power to output to the internal power network is received from the server. Accordingly, energy may be more efficiently stored.

Abstract: An inductive power transfer system operable in a plurality of modes comprising an inductive power transmitter capable of providing power to the inductive power receiver over an extended region. The system may be switchable between the various modes by means of a mode selector operable to activate various features as required, such as: an alignment mechanism a resonance tuner, an auxiliary coil arrangement or a resonance seeking arrangement. Associated methods are taught.

Abstract: A power transmitting unit-side resonance circuit including a resonance capacitor connected in series to a power transmitting coil and a power receiving unit-side resonance circuit including a resonance capacitor connected in series to a power receiving coil are caused to resonate with each other so that each resonance circuit resonates. With this, power is transmitted between the power transmitting coil and the power receiving unit making use of magnetic field resonance coupling and electric field resonance coupling. By making use of resonance, only effective power is transmitted from the power transmitting unit side to the power receiving unit side, while reactive power that is reflected is reserved as resonance energy in each resonance circuit.

Abstract: The present invention relates to the manufacture of a high capacity electrode by synthesizing an excellent Li2MnO3-based composite material Li(LixNiyCozMnwO2) to improve the characteristics of an inactive Li2MnO3 material with a specific capacity of about 460 mAh/g. Here, a manufacturing method of a cathode material for a lithium secondary battery uses a Li2MnO3-based composite material Li(LixNiyCozMnwO2) by reacting a starting material wherein a nickel nitrate solution, a manganese nitrate solution and a cobalt nitrate solution are mixed, with a complex agent by co-precipitation.

Abstract: The solution relates to the field of electrical engineering and can be used for producing high-voltage batteries of electrical energy storage devices for transport and power engineering requirements.

Abstract: An ECU outputs, when it determines that there is a battery cell which needs charging, address information to a battery monitor AFE 6. The battery monitor AFE 6 turns ON a transistor specified by the address information and outputs an active ON/OFF signal to a balancing circuit 4. To the balancing circuit 4, a DC converter 30 to which each of battery cells 2a are connected is provided, and selectively charges the battery cells by operating the DC converter 30. When the ON/OFF signal is active, the DC converter 30 is formed of a magnetic-amplifier type forward converter and selectively charges the battery cells having a low cell voltage when the voltage of the battery cells is about lower than 4.2 V, and eventually maintains the cell voltage at about 4.2 V to prevent overcharging to the battery cells 2a.

Abstract: A battery cell unit includes a battery cell and a monitoring and actuation unit for monitoring the function state of the battery cell. A coupling unit is provided in the battery cell unit, in which coupling unit two half-bridges forming a full-bridge are arranged, which half-bridges each comprise a first power semiconductor coupled to a positive pole of the battery cell, a second power semiconductor coupled to a negative pole of the battery cell and a central connection and are connected to a respective other output terminal of the battery cell unit via the respective central connection. The battery cell is configured to operate, in the normal operating mode, the power semiconductors of the half-bridges in such a way that a battery cell voltage of the battery cell is present at the output terminals of the battery cell unit optionally with a positive or negative orientation.

Abstract: An electronic device may comprise audio processing circuitry and a first connector having a first contact and a second contact. In a first mode of operation, the audio processing circuitry is configured to output one or more audio signals carrying music and/or voice via the first contact and the second contact. In a second mode of operation, the audio processing circuitry is configured to output a signal for delivering supply current via the first contact and the second contact. While the electronic device is in the first mode of operation, a gain and/or volume limit of the audio processing circuitry may be set to a first level, and while the electronic device is in the second mode of operation, the gain and/or volume limit of the audio processing circuitry may be set to a second level that is higher than the first level.

Abstract: A device including a housing, a rechargeable battery disposed within the housing, a micro-USB receptacle positioned in the housing, a recharger disposed within the housing and configured to recharge the rechargeable battery, wherein the recharger is configured to be powered through the micro-USB receptacle, wherein the micro-USB receptacle is configured to be waterproof, and includes a metal shell having an exterior surface and a front face extending forwardly from the exterior surface of the metal shell, a layer of plastic overmolded onto the exterior surface of the metal shell, a front face in the layer of plastic that extends around a periphery of the front face of the metal shell, and a seal positioned between the front face of the layer of plastic and an inner surface of the housing.

Abstract: A mobile electronic system including a mobile electronic device and a charging accessory is provided. The mobile electronic device includes a first connector and a battery. The charging accessory includes a second connector. The first connector and the second connector are configured to couple the mobile electronic device and the charging accessory. When the charging accessory is coupled to an alternating-current voltage and the mobile electronic device, the charging accessory converts the alternating-current voltage into a direct-current voltage, detects an instantaneous voltage of the battery, determines the value of the direct-current voltage according to the instantaneous voltage, and outputs the direct-current voltage to charge the battery.

Abstract: There is provided a battery pack including a mixed cell and a power device including the same. The mixed cell may include a first cell and a second cell having different electrical characteristics. The electrical characteristics may include at least one of an open circuit voltage characteristic corresponding to a state of charge, an internal resistance, an operation voltage, or a capacity.

Abstract: A regulator draws power from a battery or power delivery system and supplies regulated power to a load according to alternating modes of operation. In a voltage control mode, the regulator supplies power with a nominal voltage level and a fluctuating current level that is allowed to float according to the current demands of the load. When the load demands an amount of current that could potentially cause damage, the regulator transitions to a current control mode. In the current control mode, the regulator supplies power with a fluctuating voltage level and a maximum current level. The regulator transitions between voltage control mode and current control mode in order to supply a maximum power level to the load without exceeding the maximum current level. The regulator is also configured to limit the power drawn from the battery by decreasing the maximum output current, potentially avoiding voltage droop.

Abstract: Battery pack circuits are provided. In one embodiment, the invention relates to a battery pack including a rechargeable battery including a first battery terminal and a second battery terminal coupled to a common terminal, a discharge control switch coupled between the first battery terminal and a first discharging terminal, a charge control switch coupled between the first discharging terminal and a first charging terminal, wherein the battery pack is configured to provide a current to a load coupled between the first discharging terminal and the common terminal, and a processing circuitry configured to charge and discharge the battery by controlling the discharge control switch and the charge control switch.