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7640120 |
Method and device for detecting arcs
An arc detection means for detecting arcs in a plasma process includes at least one comparator to which an evaluation signal such as an output signal or an internal signal of an AC generator...
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7636616 |
Protection system for power distribution systems
There is disclosed a protection system for a power distribution system. The system has a processor, a breaker; a network coupled to the processor, a first module coupled to the network and the...
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7613548 |
Systems and methods for controlling a ramp rate of a wind farm
A method for controlling a ramp rate of a wind farm is described. The method includes predicting an initial predicted power to be output by a wind farm including a wind turbine.
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7599161 |
Relay device and corresponding method
A method of operating a relay device, in an electrical circuit comprising first and second main circuit breakers, and a bus tie circuit breaker connecting the first and second main circuit...
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7583487 |
System and method for managing fault in a power system
A power control system comprises a plurality of power control groups, with each group comprising a plurality of individual point-of-load regulators each adapted to provide respective regulated...
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7579963 |
Electronic protection devices for circuit-breakers and corresponding programming method
A protection device for circuit-breakers that comprises a wireless communication system for transmitting locally, to a dedicated computerized device, information corresponding to measurements of...
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7576963 |
Circuit protection system
A protection system for a power distribution system with one or more zones that includes at least one power-switching device connected to a power or current sensing device and a communications...
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7570471 |
Circuit breaker trip unit with zone selective interlock and system monitoring
A zone-selective-interlocking system for an electrical power distribution system that has at least one upstream breaker and at least one downstream breaker is provided. Each breaker in the power...
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7570469 |
Dynamically configurable relay element and related methods
A dynamically configurable relay element configured to protect an electrical system, including a dynamically calculated relay operating quantity, a dynamically calculated relay pickup setting, a...
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7561393 |
Circuit protection system
A method of protecting a circuit having power switching devices that includes communicating a current in at least one secondary switching device to at least one master switching device and...
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7561392 |
Intrinsically safe data transmission device
A process control system ( 1 ) comprises at least one process control computer ( 2 ) and field units ( 4 ) connected thereto via a bus system. An, in particular, intrinsically safe data...
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7552367 |
Fault recording and sequence of events recording device capable of recording communication-based signals related to electrical power systems
A method for recording analog signals and digitally encoded information associated with primary and secondary devices of an electric power system includes: receiving a plurality of analog output...
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7542256 |
Relay device and corresponding method
A method of operating a relay device, the method comprising the steps of: providing main circuit-breakers and a bus-tie-breaker connecting the main-circuit-breakers; defining a...
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7536284 |
Electrical wire interconnect system risk assessment tool
A system, method, and computer program product for assessing risk to an aircraft electrical wire interconnect system (EWIS). Information describing an aircraft EWIS, historical failure information,...
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7485807 |
Gas-insulated bus bar component comprising outdoor bushings
The invention relates to a gas-insulated bus bar component comprising a grounded housing that is filled with protective gas and at least one bus bar conductor, which extends in the longitudinal...
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7477501 |
System and method of mounting current transducers in proximity to circuit breakers
The present disclosure provides a method and system for mounting a current transformer in proximity to a circuit breaker of an electrical system. Generally, a sensor assembly contains a plurality...
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7477500 |
Method and system for signal and power distribution in a building housing a manufacturing process
A power and signal distribution system is adaptable to existing building areas and provides a shielded, low resistance and low inductance grounding structure. The distribution system comprises two...
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7460346 |
Arc fault detection and confirmation using voltage and current analysis
An arc fault in an electrical circuit is detected by recording phase plane plot data of current versus voltage for at least one electrical cycle of an alternating current signal, and applying a...
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7460347 |
Systems and methods for performing a redundancy check using intelligent electronic devices in an electric power system
Provided is an intelligent electronic device-to-intelligent electronic device direct communication system in a power system, for performing a power system data redundancy check therebetween. The...
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7457088 |
Systems and methods for protection of electrical networks
A system and method for accomplishing power swing blocking and unstable power swing tripping schemes during disturbances of electrical networks is disclosed. The disclosed system and method...
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7453677 |
Power and safety control hub
A power and safety control hub, integrating fault tolerant power disconnect control, software monitoring of disconnect and multi-voltage power distribution and disconnect with non-hazardous power...
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7415072 |
Drive control for an electric drive with a secure electrical separation of power element and control element
The invention relates to a drive control for an electric drive with a secure electrical separation of power element and control element. The aim of the invention is to reduce the number of...
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7394632 |
Line interface module
A power processing module for supplying power to a motion control device from a power source such as a utility power line, and related method of operation, are disclosed. The power processing...
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7375941 |
Protective relay capable of protection applications without protection settings
The current differential relay operates without adjustable settings, and includes a phase current differential element with a predetermined threshold, responsive to local phase current values and...
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7372682 |
System and method for managing fault in a power system
A power control system comprises a plurality of power control groups, with each group comprising a plurality of individual point-of-load regulators each adapted to provide respective regulated...
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7372808 |
Redundant transmission of protection commands between remote tripping devices
In a method and a device for redundant transmission of protection commands between remote tripping devices ( 1, 8 ), useful information which represents a protection command or a rest signal is...
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7369380 |
Highly available dual serial bus architecture
In a highly available storage system, an enclosure includes first and second power supplies, and first and second controller boards. Each of the first and second controller boards includes first...
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7352549 |
Method of automatically recognizing an electrical system
The subject matter of the present invention is a method of automatically recognizing an electrical system by which both the voltage of an electrical system ( 2 ) and the phase angle between phases...
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7352550 |
Method of detecting run-dry conditions in fuel systems
Systems, methods, and apparatus for fault detection and interruption in power lines are provided. Circuitry is implemented via software and hardware that is configured to sense an operational...
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7342758 |
Method and system for detecting stand-alone operation of a distributed generating system
A method and a system for detecting stand-alone operation of a distributed generating system having a generating source connected in shunt with an independent power distribution system via a first...
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7336461 |
Method for determining the moment of closure of a circuit breaker on a high voltage line
A method for determining the reclose time of a circuit breaker on a three-phase high-voltage electric network after separation of contacts 7 A, 8 A, 7 B, 8 B, 7 C, 8 C in the presence of a...
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7337081 |
Metering device with control functionality and method thereof
A metering device of a power substation and method are provided for operating on a secondary analog waveform output by a transformer assembly receiving a primary waveform. The method includes...
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7324006 |
Remote display ammeter for power plug or power strip
A power strip is providing including a housing coupled to a first end portion of a power supply cord, the housing having an electrical receptacle mounted thereto and connected to the power supply...
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7304826 |
Fault management of high temperture superconductor cable
A method and system for providing protection for a superconducting electrical cable located in a utility power network includes detecting a fault current on the superconducting electric cable,...
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7305282 |
Very short term load prediction in an energy management system
A method and system is provided for optimizing the performance of a power generation and distribution system by forecasting very short term load forecasts through the use of historical load data,...
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7292422 |
Occupancy-based circuit breaker control
A method and occupancy-based control device in a trip unit of a main circuit breaker, with the circuit breaker coupled to an electrical distribution system including at least one feeder circuit...
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7265957 |
Restoring electrical load to distribution feeder circuits
Automatically de-energizing and re-energizing a section of a distribution feeder circuit includes detecting, using a module of a protective device, whether a section of a distribution feeder...
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7265960 |
Trip coil drive circuit and electrical switching apparatus including the same
A drive circuit, such as an electronic trip device, is for a shunt trip coil of a network protector. The drive circuit includes an alternating current input adapted to receive an alternating...
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7262943 |
Configuration unit and methods for configuring centrally controlled power distribution systems
A configuration unit for a centrally controlled power distribution system is provided. The configuration unit includes a non-volatile memory device and a communications connection. The non-volatile...
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7236338 |
System and method for remotely detecting and locating faults in a power system
A system and method are provided for remotely detecting and locating faults in a power system. The system includes at least one slave controller and at least one supplemental protection module. The...
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7235898 |
Vehicle power distribution node with redundant power supply
A system and method for providing power redundancy to certain devices of a vehicle that are typically controlled by means of a power distribution and control node. Power is delivered to the node by...
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7230808 |
Grounding of electrical structures
Placement of a conductive polymer composition grounding material at frequent points in an integrated electric transmission and distribution system to minimize transmission of harmonics and the...
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7230809 |
System for checking synchronization of AC voltage sources before closing a power circuit breaker
A system for checking synchronization of AC voltage sources before closing a power circuit breaker is provided comprising two power circuit breakers connected by a power transmission line, such as...
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7206885 |
Variable field bus coupling with long coupling length, particular for mobile operator control and monitoring devices
The invention relates to a system for coupling a mobile data input unit to a field bus, whereby a coupling unit is connected to the field bus via a spur line and a line driver and the signals at...
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7199991 |
Electrical bus protection method & apparatus
A protection relay for a power line system that employs current transformers for detecting current on a bus is provided with a fault trip scheme that includes transformer current saturation...
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7193338 |
Method for tapping a high voltage transmission line and substation using the same
A method of tapping a high voltage transmission line for input into a power distribution substation is disclosed. The method comprises the steps of dividing the transmission line and attaching the...
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7187090 |
Mobile high voltage network
A mobile high voltage network supplies electrical consumer units connected via a plug-in connector and can be switched on and off by means of mechanical switches, with a fuse responding in the...
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7180717 |
Electrical network protection system
Protection systems for electrical systems are described, where the electrical systems may include spot networks and/or grid networks. The various protection systems may be designed and used to...
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7173800 |
Time-optimum reception of protection commands in a remote tripping device
In a method and a detector ( 7 ) for time-optimum reception of protection commands in a remote tripping device, at least two detector elements ( 1, 2 ) are operated, which are all designed for a...
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7170730 |
Multiple suite audio line isolator
A method for isolating suites includes the steps of isolating the suites when an alarm is initiated, setting a timer during isolation creating a window of time to clear a short circuit, clearing...
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