Product category:
Plantwide control
News Release from: Invensys Foxboro
Edited by the Engineeringtalk Editorial
Team on 19 April 2004
Scada system to control San Antonio gas
source
City Public Service has selected Invensys to implement an advanced Foxboro gas distribution Scada system in a new primary control centre now under construction in San Antonio, Texas.
City Public Service (CPS), the USA's largest municipally owned energy company providing both natural gas and electric service, has selected Invensys to implement an advanced Foxboro gas distribution Scada (supervisory control and data acquisition) system in a new state-of-the-art primary control centre (PCC) now under construction in San Antonio, Texas "From an operational standpoint, cutting-edge technical systems will enable the CPS Primary Control Centre to achieve a remarkable 99.99% operational availability, allowing CPS to better monitor its service area with more precision and to automatically correct system interruptions", said Milton Lee, CPS General Manager and CEO, at the March 2003 groundbreaking ceremony for the new, 6700m2 Primary Control Centre, which will serve as the high-tech "nerve centre" for the municipality
This article was originally published on Engineeringtalk on 3 Oct 2002 at 8.00am (UK)
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The new Foxboro gas distribution Scada system will replace an ageing system with the latest open system architecture that facilitates easy integration of third-party applications, devices, and toolsets.
To achieve City Public Service's 99.99% availability target, the new Foxboro Scada system will utilise a robust, Unix-based dual-redundant master station in the Primary Control Centre, plus an offsite emergency backup system.
The system will provide a comprehensive Scada toolset plus Foxboro's advanced Scada applications for gas scheduling, real-time and historical gas flow tracking, gas accounting, line pack analysis, AGA calculations, closed-loop flow and pressure control, and over/under pressure analysis.
Support for the ICCP (Inter Control Centre Protocol) will facilitate data exchange with other ICCP-enabled control systems.
The Foxboro Scada master station will support communications with EFM (electronic flow measurement) devices as well as a large number of legacy RTUs (remote terminal units) located throughout the 7110km of gas pipelines in the network.
In addition to the primary and backup Scada systems, Invensys is also providing a dedicated development system.
"We're very excited about the new Foxboro gas distribution Scada system", said Bill Woosley, Gas Control Manager at CPS.
"In addition to providing the high level of availability we require to help ensure superior customer service, the new system will provide our operators with much better and more timely information than was previously available".
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