Abb Research Ltd.

Abb Schweiz Ag

Abb Technology Ltd

Hitachi Energy Ltd

Abb Technology Ag

Bernhard Deck

Vijay Shah

Vishal H Shah

Franz Zurfluh

Michael Stanimirov

Zhao Wang

James Stoupis

Mirrasoul Mousavi

Dmitry Ishchenko

Michele Luvisotto

Mario Crevatin

Abhisek Ukil

Niraj Suthar

Jianping Wang

Lutz Niemeyer

Krister Landernäs

Stephan Gerspach

Paul Rudolf

Mallikarjun Kande

Rolf Disselnkötter

Thomas Von Hoff

Joris Pascal

Richard Bloch

Tobias Gentzell

Lennart Balgard

Bruno Sabbattini

Hariram Satheesh

Klaus-Dieter Weltmann

Vivek Gopalakrishnan

Callisto Gatti

Josef Lehmann

Nayan Shah

Kornel Scherrer

Indresh Ishwarlal Bhatia

Lorenzo Gulli

Jukka Kinnunen

Raphael Eidenbenz

Walter Rueegg

Naman Maheshkumar Raval

Marco Egman

Hans-Peter Züger

Sanjeev Koul

Jatin Parmar

Oddleif Westby

Stefan Ramseier

Ralf-Dieter Pietsch

Catherine Körbächer

Hans-Peter Zueger

Bernhard Loher

Ernst Johansen

Maulik Vyas

Werner Vogt

Sasi Kumar S R

Thomas Küng

Gn Krishnamoorthy

Florian Straub

Paul Rudolph

Marco Tellarini

Indresh Bhatia

Sasi Kumar SR

Naman Raval

Giorgio Magoni

Zeineb Rejiba

Andrei-Marian Dan

A monitoring system for an electrical transmission and/or distribution network is disclosed. The system comprises a short-range wireless transceiver arranged at a predetermined position relative to an equipment device and configured to receive a signal from a portable device, and a controller configured to determine a location of the portable device based at least partially on the received signal. The controller is further configured to verify if the determined location is within a predetermined alert zone at least partly surrounding the equipment device, and to generate an alert signal in case the determined location is verified to be within the alert zone.

Monitoring system for an electrical transmission and/or distribution network

A method for positioning a virtual object in an image of a scene including a real object is disclosed. The method comprises receiving a signal from a short-range wireless transmitter arranged at a predetermined position relative to the real object and determining a location and orientation of the portable device relative to the short-range wireless transmitter based on the received signal. The image of the scene is displayed with the virtual object, wherein the position of the virtual object in the image is based on the determined location and orientation of the portable device relative to the short-range wireless transmitter and on the predetermined position of the short-range wireless transmitter relative to the real object. A system, a portable device and a computer program product is also disclosed.

Portable display device with overlaid virtual information

An intelligent fuse provides the operational status of the power network upon which the fuse is installed to a mobile device of a remote user. A fuse electronic circuit embedded in the fuse holder of the fuse captures the characteristic values of the power network and transmits the data to the mobile device. The mobile device has an application installed thereon to calculate the distance to fault location from the recording fuse using the fuse electronic circuit-captured data. The fuse electronic circuit-captured data is further used to visualize the data collected at the measurement points of the electrical system upon which the fuse is installed.

System and method for locating faults and communicating network operational status to a utility crew using an intelligent fuse

A protection relay is disclosed that generates a trip signal to operate a circuit breaker in case of a fault condition. A first module provides measurement and analysis of power parameters of the power line connecting the power equipment that is being protected, the protection being provided by generating a first trip signal for operating a circuit breaker connected in the power line. One or more second modules can boost performance of the protection relay by measurement and analysis of power parameters-to generate a second trip signal for operating a circuit breaker connected in the power line. The first trip signal and the second trip signal are logically combined to generate a trip signal that operates the circuit breaker.

Self supplied protection relay with a module to boost performance

A design of a protection relay, and interface with an operator of a protection relay, are disclosed. The protection relay can include a base relay for measurement of line current and for generation of a trip signal, a base Human Machine Interface (HMI) for user specifying of a base setting of an operating parameter of the protection relay, and an optionally active Human Machine Interface (HMI) unit having a processing unit to manage plural activities with controlled power consumption.

Human-machine interface for a self-supplied relay

Exemplary embodiments for updating a controller of a primary device of a power substation. An actual time is received from a time server via a cell phone communication network with a mobile device and the actual time is sent with the mobile device via a local wireless communication network to the controller.

Updating data of a controller of a primary device of a power substation

An exemplary method and apparatus are directed to distributed waveform recording for fault monitoring and analysis of a fault condition in a power distribution system. One or more instrument transformers along with merging units and a plurality of Intelligent Electronic Devices (IEDs) distributed in a plurality of hierarchical levels. The distributed waveform recording corresponds to a fault event at different levels in the power distribution system data is carried out by at least two devices configured to detect an event for recording and perform waveform recording. The data used for waveform recording and the data for detection of the event are based on a single stream of the sampled measured value data and are thereby are time synchronized.

Method for distributed waveform recording in a power distribution system

An exemplary method for calibrating a current transducer of the Rogowski type including a Rogowski coil sensor and an electronic device is performed by determining and correcting the sensitivity of the current transducer of the Rogowski type through the measurement of the self-inductance Lof the coil using the electronic device.

Method for calibrating a current transducer of the rogowski type

A system for transmitting product information of a product is described. The system contains a product with an electronic controller for acquiring and/or storing product information, wherein the product information comprises standard information about the product and current product information, a barcode generating component for generating a barcode for representing the product information, wherein the barcode generating means is connected to the product for data transfer or is integrated into the product, and a barcode updating device for updating the barcode on the basis of the standard information about the product and current product information. There is furthermore an acquisition module for the information acquisition of the product information from the barcode by means of an image recording device.

Automatic device registration system with barcode identification and maintenance information generation

A method of determining a fault direction parameter of a fault on an AC transmission line of a power distribution system relative to a measurement location of the transmission line. The method includes measuring a time-dependent AC current of the transmission line at the measurement location to obtain time-domain current data indicative of the measured current, obtaining a time of the fault on the transmission line, identifying first and second times by identifying a periodically re-occurring feature of the current data, such that the fault time is between the first and second times, extracting, from the current data, an offset indicative parameter indicative of a time offset of the current at the fault time and between the first and second times, calculating an offset direction parameter by comparing the offset indicative parameter to a non-offset indicative parameter, and establishing the fault direction parameter based on the offset direction parameter.

Fault direction parameter indicator device and related methods

A method of determining a fault parameter of a fault on an AC transmission lineof a power distribution systemrelative to a measurement locationof the transmission linecomprising: measuring a time-dependent current of the transmission lineat the measurement location; transmitting a current signal indicative of the measured current to a decision logic section, the current signal comprising a plurality of pre-fault current values and a plurality of post-fault current values; determining, by the decision logic section, a plurality of phase difference values indicative of respective phase differences between respective pre-fault current values and respective post-fault current values; accumulating the plurality of phase difference values into an accumulated phase difference parameter; obtaining the fault parameter by comparing the accumulated phase difference parameter to a threshold value; and outputting the determined fault parameter.

Fault parameter indicator device and related methods

The invention provides a communication system for a power distribution network, which comprises at least two distribution domains, each of the domains includes one management device and at least one electrical device. The management device is configured as connected with the electrical devices within its domain, and is further configured as capable of collect information from the electrical devices. The system also comprises a communication link, which is arranged for the management devices of different domains, and the management devices are configured as capable of directly exchanging information through the link.

Communication method and apparatus of network management system

This specification discloses an intelligent and digitalized process level interface which is referred to herein as an Intelligent Process Interface (IPI). The input of the IPI includes both analog and digital channels and therefore the IPI can be used for substations in transition or retrofit stages with both conventional and non-conventional primary devices. The IPI acts not only as a digitalized interface, but also as an intelligent supervisory and control unit for switching functions. The architecture of the IPI is flexible and allows for the functionality to be distributed to several devices.

Intelligent process interface and substation automation system

The disclosure relates to a process of configuring a standalone self-supplied numeric controlled relay for providing phase and earth over current protection to electrical systems by accurate current measurement. The arrangement for current measurement with control algorithms is provided for power control by providing amplified and conditioned current for optimization between the current to power an electronic circuit and the fidelity of a measured current waveform so that they both are at the acceptable levels at the same time. This disclosure describes the current sensing and associated algorithm for power control in a truly self-powered relay.

Standalone self-supplied numeric controlled relay

Growing community of inventors

Weilheim, Germany

Bernhard Deck