Power Measurement Ltd.

Bradford J Forth

Simon H Lightbody

Martin A Hancock

Michael Edward Teachman

Peter C Cowan

Colin N Gunn

Jeffrey W Yeo

John C Van Gorp

Piotr Przydatek

Geoffrey T Hyatt

Ronald G Hart

Andrew W Blackett

David W Giles

Bryan J Gilbert

Chuen Shan Simon Ki

Jason Sheppard

Marc A Ricci

Darrin Marr

A power management architecture for an electrical power distribution system, or portion thereof, is disclosed. The architecture includes multiple intelligent electronic devices ('IED's') distributed throughout the power distribution system to manage the flow and consumption of power from the system. The IED's are linked via a network to back-end servers. Power management application software and/or hardware components operate on the IED's and the back-end servers and inter-operate via the network to implement a power management application. The architecture provides a scalable and cost effective framework of hardware and software upon which such power management applications can operate to manage the distribution and consumption of electrical power by one or more utilities/suppliers and/or customers which provide and utilize the power distribution system.

Intra-device communications architecture for managing electrical power distribution and consumption

A power management architecture for an electrical power distribution system, or portion thereof, is disclosed. The architecture includes multiple intelligent electronic devices ('IED's') distributed throughout the power distribution system to manage the flow and consumption of power from the system using real time communications. Power management application software and/or hardware components operate on the IED's and the back-end servers and inter-operate via the network to implement a power management application. The architecture provides a scalable and cost effective framework of hardware and software upon which such power management applications can operate to manage the distribution and consumption of electrical power by one or more utilities/suppliers and/or customers which provide and utilize the power distribution system. Autonomous communication on the network between IED's, back-end servers and other entities is facilitated by the use of an instant message protocol and server and associated applications, which offer reliable and determinate message delivery.

Communications architecture for intelligent electronic devices

An intelligent electronic device for measuring various power parameters from a electrical power distribution system is disclosed. The device is capable of measuring and reporting the reliability of the electrical power distribution system as the number of consecutive 9's digits appearing in the computed percentage of system downtime versus system uptime. The number of 9's is computed in a manner which does not incur inaccuracies at high resolutions due to digital floating point mathematical computation methods.

Apparatus and method for measuring and reporting the reliability of a power distribution system with improved accuracy

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Victoria, Canada

Bradford J Forth