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Title: Digital Data Acquisition And Control System For Gas Dispatch
Author: Paul J. Ziegler
Source: American Gas Association 1982
Year Published: 1982
Abstract: In 1981 CG&E completed the final phase of a five year program to modernize its Gas Control system. New equipment, using current technology provides continuous gas flow and pressure information for operating an entire tri-state gas system. In addition, the equipment permits transfer of remote control functions from two satellite control centers to a central control center. Additional benefits include the furnishing of automatically calculated corrected flow data and logging information, both of which were formerly accomplished manually. The system presently monitors a total of 300 gas Hows and gas pressures at 90 different locations and 80 status points, such as valve position indication. System data can be continuously observed on the color screens of the computer terminal. Alarms are sounded and logged when gas flows or pressures exceed present high or low limits at any one of the 300 points.

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