Abb Technology Ag

Abb Power Td & Company

Abb Inc.

Elster Electricity, LLC

Abb Automation Gmbh

Quality Aero Technology, Inc.

David Crawford Lawrence

Kenneth C Shuey

Douglas A Voda

Arnold W Bragg

Wei Huang

Khoi Nguyen

Robert T Mason

Sean Michael Scoggins

Harshavardhan M Karandikar

Stuart Laval

Eugene Wilson Hodges, Iv

Kathryn J Smith

Edward John Beroset

Sergei V Udin

John Chalmers Sutton, Iii

Steven L Grant

John W Giles, Jr

Kathyrn J Smith

Stuart S Laval

Among other things, one or more techniques and/or systems are provided for maintaining an electrical network model describing an electrical network. A fault detection, fault isolation, and load restoration (FDIR) component, a voltage/var control (VVC) component, and/or other components may be provided with access to the electrical network model so that the components may have access to relatively up-to-date and/or accurate information describing the electrical network when executing functionality for the electrical network. For example, the FDIR component and the VVC component may be synchronized based upon the electrical network model so that the FDIR component may have notice of network changes by the VCC component, and/or the VCC component have may have notice of network changes by the FDIR component.

Electrical network model synchronization

Among other things, one or more techniques and/or systems are provided for monitoring an operating condition of an electrical component, such as electrical switchgear. In one example, temperatures associated with an electrical conductor connection within the electrical component may be evaluated against one or more expected temperatures curves derived from a linear regression model to determine whether the electrical conductor connection has failed or is starting to fail. In another example, temperature readings may be monitored to determine whether a temperature reading at one location is out of sync with temperature readings at other locations. An electrical conductor connection associated with a location of the out of sync temperature may be determined as faulty. In another example, a Euclidean distance model and/or a correlation coefficient model may be used to identify a faulty electrical conductor connection. In this way, failure and/or potential failure of the electrical component may be predicted.

Monitoring operating condition of electrical component

A system and method for developing, deploying and implementing computer applications for a power system has an open software framework for developing mobile applications. The mobile applications are developed by combining predefined modules having functionality to monitor a power system, change configuration settings within devices installed on the power system and allow utility personnel to quickly respond to events occurring on the power system.

System and method for developing, deploying and implementing power system computer applications

An automated meter reading system is provided. The system includes a host server interfaced to a plurality of nodes where each node communicates with a number of utility meters. The system selects a group of noninterfering nodes and uses an RF broadcast from the host server to initiate the reading of meters and the uploading of meter data provided by those meters to the nodes and, ultimately, to the host server. The system also has a number of gateways that communicate with a plurality of nodes, grouped to form sets of noninterfering gateways. In this embodiment, the system selects a set of noninterfering gateways and uses an RF broadcast from the host server to initiate the reading of meters and the uploading of meter data provided by those meters to the nodes and, ultimately, through the gateways to the host server. A method for using an outbound RF channel to automatically read meters is also provided.

Automatic meter reading system employing common broadcast command channel

An interface layer and method is provided that permits applications, without modification, to operate with any type of meter. The interface comprises an abstraction layer and library or repository of descriptions specific to each meter type. The abstraction layer provides the capability to communicate with any meter through a variety of applications. Upon receiving an application request, the abstraction layer retrieves the description for the particular meter type from the repository and processes the request. In this manner, only one data representation is needed for applications to communicate with a wide variety of meters.

Architecture neutral device abstraction layer for interfacing devices and applications

A solid state electrical meter incorporates the ability to support two-way radio, dialback telephone and CEBus personal LAN. These three communications media require different protocols to meet their respective requirements. Embedding multiple protocols within the meter controller makes the device extremely flexible for current and future applications.

Energy meter with multiple protocols for communication with local and

A slip ring assembly having a rotatable chamber including a shaft rotatably mounted therein. A plurality of slip rings are provided within a ring section of the rotatable chamber and are mounted to the shaft for rotation therewith. The plurality of slip rings for a group of preselected pairs of slip rings. An electrical conductor is connected to each slip ring with each electrical conductor being twisted to at least one adjacent electrical conductor through a central core in the shaft to thereby cancel alternating current due to self-generated voltages. The slip ring assembly also includes a brush assembly having at least one brush support associated with each slip ring with each brush support having brushes extending therefrom in contact with its corresponding slip ring at at least two brush contacts. The brush contacts for each slip are orientated approximately 180 degrees apart. Furthermore, brush contacts for each preselected pair of adjacent slip rings are orientated at an offset of approximately 90 degrees.

Low-noise slip ring assembly

Growing community of inventors

Raleigh, NC, United States of America

David Crawford Lawrence