Matches 1 - 50 out of 336 1 2 3 4 5 6 7 >
Match Document Document Title
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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,...
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,...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
7154723 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...
7154722 Loop control for distribution systems  
The invention contemplates a technique for providing loop control on a faulted overhead or underground loop system, while preventing restored current from being fed or back fed into the fault. In...
7133921 Portable devices for different control interfaces  
A communications interface system and method for a plasma generator is provided. The communications interface system includes a power delivery system component that has a standard POD interface for...
7130172 Switchgear and receiving transformation apparatus using the same  
A switchgear having a primary circuit breaker and a secondary circuit breaker respectively arranged on the primary side and secondary side of a load switch or a voltage and current transformer for...
7130171 Apparatus for fail-safely disconnecting an electrical load; in particular in industrial production plants  
An apparatus for failsafe disconnection of an electrical load has a first and at least one second safety switching device. The first safety switching device has a first evaluation and control unit,...
7123459 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...
7117105 Method and apparatus for ground fault protection  
A method and apparatus for monitoring a centrally controlled power distribution system is provided. The method includes sampling an electrical current flow in the centrally controlled power...
7106564 Devices and methods for detecting islanding operation of a static power source  
Devices and methods for detecting islanding operation of a static power source involve injection of a non-harmonic error on the phase angle of the static power source in regular steps to introduce...
7079367 Electric plant and method and use in connection with such plant  
An electric plant with a safety device, a method for remedying faults in a switchgear installation, and the use of a closing contact to provide security against faults. The plant includes a...
7058459 Method and device for operating a decentralized control system  
A method of and a device for operating a decentralized control system, at least two control units are provided to control at least one actuating element each. In this control, different operating...
7057869 Method for protecting at least one consumer against overvoltage tages and device for carrying out the method  
A method and a device for protecting at least one consumer against overvoltages when working with a method for non-contact transmission of electric power from one or more medium-frequency current...
7050280 High speed transfer system  
A High Speed Transfer System which comprises three Protection and Control devices. A first and a second of said Protection and Control devices are used for failure detection on the feeder bus-bar;...
7042690 Power-line, differential, isolation loss detector  
In one embodiment, an integrated differential isolation loss detector is disclosed that generates a first temperature that is a function of a high side current and a second temperature that is a...
7027896 Integrated protection and control system for a power system substation  
The substation control system, being responsive to a plurality of status input signals from various power system assemblies includes a plurality of input/output modules, each having a fiber-optic...
7016793 Method and apparatus for anti-islanding protection of distributed generations  
An apparatus for anti-islanding protection of a distributed generation with respect to a feeder connected to an electrical grid is disclosed. The apparatus includes a sensor adapted to generate a...
6958897 Electrical load drive control apparatus and electrical load drive control method  
An electrical load drive control apparatus includes: a plurality of drive units, each of which drives one of a plurality of electrical loads; an instruction unit that issues a drive switch...
6954345 Generator for producing high voltages  
A generator for producing high voltages and having at least one generator winding ( 12 ) is connected via a generator circuit ( 10 ) to a network ( 19 ), which generator circuit has means ( 15, . ....
6944004 Arrangements to detect and respond to disturbances in electrical power systems  
A control arrangement and method is provided for detecting and responding to disturbances in electrical power systems. In a preferred arrangement, an integration is initiated that is based on a...
6944002 Automatic transfer switch and protection device  
An automatic transfer switch and protection device is provided. The device includes a contact, a drive assembly, and a controller. The contact is movable among a first position, a second position,...
6940702 Electrical protection system  
Protection systems for electrical systems such as substation power dividers are described. The protection systems may be designed and used to detect and clear faults that may occur within the...
6937134 Reception of protection commands in a remote tripping device  
In order to receive protection commands in a remote tripping device, one or more signals is or are received, protection commands and combinations of protection commands are coded by means of an...
Matches 1 - 50 out of 336 1 2 3 4 5 6 7 >