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Power converter circuit with AC output
A power converter circuit includes output terminals configured to receive an external voltage. A series circuit includes a number of converter units, each...
Electrical appliance energy consumption control
An electrical appliance configured to receive power and a power consumption signal from an electrical power distribution system comprises an energy storage...
Power oscillation damping employing a full or partial conversion wind
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...
Load leveling system of power system
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...
Integrated fuel cell system with auxiliary power delivery
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...
Electrically programmable electronic load
An electrically programmable load having an impedance value dependent on a received control word. The electrically programmable load has several parallel load...
Current-limiting battery usage within a corded electronic device
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 supply system and method
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...
Battery system having identifiers and energy storage system including the
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...
System for balancing, by magnetic coupling, an association in series of
elements for generating or storing...
System for balancing an association in series of elements for generating and/or storing electrical energy has full bridge inverters (OPC.sub.1, OPC.sub.2,...
Semiconductor ESD circuit and method
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...
Short circuits and power limit protection circuits
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...
Overcurrent protection device and overcurrent protection method for
Overcurrent protection devices and methods for electronic modules. In some embodiments, an overcurrent protection system can be implemented for an electronic...
Circuit protection device
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...
Protection circuit and related method
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...
DC voltage circuit breaker
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...
Method for transfer of control between devices in a substation system and
a device thereof
An exemplary method and system are disclosed for coordinated transfer of control in a substation system having IED or logical devices/servers using GOOSE...
Over-voltage prevention device
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...
Power cord apparatus for remotely detecting excessive operational
parameters in an electrically powered machine
A power cord apparatus for remotely detecting excessive operational parameters in an alternating current (AC) powered machine (e.g., dehumidifiers, air...
Method and apparatus for providing a power factor correction (PFC)
compatible solution for electronic devices
Methods and apparatuses for providing a solution for incompatibility between nonsinusoidal waveform uninterruptible power supply (UPS) systems and active power...
Ground fault circuit interrupter and method
A method for operating a ground fault circuit interrupter. In accordance with an embodiment, an operating parameter of the ground fault circuit interrupter can...
Fast distance protection for energy supply networks
A method for detecting a short circuit on a multiphase electrical energy supply network line includes recording current and voltage sampled values and...
Method and apparatus for detection and control of DC arc faults
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...
Electric network protection
A protection relay is provided for protection of an electric network. The protection relay measures an electric signal in the network, converts the measured...
Cryogenic electrical feed-through
A cryogenic electrical power feed-through assembly includes a contact header assembly. The contact header assembly includes a feed-through body forming a...
Multiple cable strain relief
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...
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...
Method and apparatus for reducing wind induced vibration damage to
electrical power line towers
An electrical power line tower which is resistant to wind induced vibration damage supports vertically spaced apart electrical conductor-mounting cross arms...
Iron bus bar having copper layer, and method for manufacturing same
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...
Mounting plate and security device using the same
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...
Laser welding a feedthrough
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...
Flush mount electrical plate and method for installing same
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...
Electrical box location indicator system
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...
In use cover for outdoor electrical devices
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...
Feedthrough device for an explosion-proof housing
A feedthrough device (10) for an explosion-proof housing constructed as a "flameproof enclosure" of the flame protection type. The feedthrough device (10) is...
Self-curling non-woven sleeve and method of construction thereof
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...
Corrosion resistant EMI shielding assembly for a stuffing tube and a
method for making a gasket for use therewith
An elongated, flexible composite gasket member having a knitted wire mesh rope at least partly impregnated with a soft, tacky, flowable, pre-cured polyurethane...
Flexible electrical isolation device
An electrical isolator includes a flexible non-electrically conductive membrane and an inelastic flexible dielectric member journalled in the membrane and...
Method for treating internal arcs
Methods and systems for controlling and limiting the damage caused by arcs in electrical distribution equipment provide a cooling assembly that uses a filter or...
Integrated safety disconnects for power systems
Various embodiments provide safety disconnect systems for a power system. In one aspect, a safety disconnect system includes an enclosure operative to receive a...
Fusible meter stack apparatus, multi-unit power distribution apparatus,
and operational methods
A fusible meter socket apparatus is disclosed. The meter stack apparatus includes an enclosure having a first and second side, a meter section including a stack...
Ion generator mounting device
The present invention provides methods and systems for an ion generator mounting device for application of bipolar ionization to airflow within a conduit, the...
Plasma jet spark plug
A plasma jet plug has a cavity defined by a surface of a center electrode, an inner surface of an insulator, and a surface of a ground electrode. When a volume...
A spark plug is disclosed and includes a metal tube which interiorly defines an axis and is externally-threaded for engagement with an engine block. An...
Optoelectronic semiconductor body and method for producing an
optoelectronic semiconductor body
An optoelectronic semiconductor body has a substrate that includes a strained layer that is applied to the substrate in a first epitaxy step. The strained layer...
Semiconductor laser element and method of manufacturing semiconductor
A semiconductor laser element includes: a window region including a disordered portion formed by diffusion of a group-III vacancy, the diffusion promoted by...
A single pulse semiconductor laser operating in the gain-switching regime comprises a plane asymmetric waveguide and an active layer in the waveguide, the ratio...
Transistor laser optical switching and memory techniques and devices
A ring cavity light-emitting transistor device, including: a planar semiconductor structure of a semiconductor base layer of a first conductivity type between...
Optically pumped solid state laser device with self-aligning pump optics
The present invention relates to an optically pumped solid state laser device, comprising a solid state laser medium (300-302) in a laser resonator. Several...
Systems and methods for amplifying light
The invention relates to optical system including light sources that amplify light using a gain medium. Systems and method of the invention are provided for...