Programmable mMicroprocessors in Local Control of Hydro Power Plants
The main purpose of the control equipment is to provide the generator with means for operation of the power station equipment. There is a need for status information on the generating...
Grand Coulee SCADA System Procurement
Purchasing a quality Supervisory Control and Data Acquisition (SCADA) or Energy Control System (ECS) at a reasonable price for a particular installation can be a challenging undertaking....
The Design and Operating Experience of a Multiplexer Application in Conventional Hydro Powerhouse Control
The design of the Bonneville Second Powerhouse control system presented an opportunity to replace conventional cables with a multiplexer system that would provide a two-way data communication...
Capabilities of Automated Control System Employing Advanced Programmable Controllers
This paper details Voith Hydro's range of experience in the use of Programmable Logic Controllers (P. L. C. 's) in the automation of new hydro electric sites....
Integrated Automatic Hydroelectric Plant Control
The increased acceptance and employment of microcomputers to control specific functions in small hydroelectric plants has led to computerized integrated total control of hydropower generation....
Accelerated Life Testing of Generator Coils
This paper presents a step-by-step procedure for doing a 400 hour, 60 Hz, 90 degree C accelerated life test on generator coils. Test procedure is as follows: 1. Initial coil examination...
Upriver Dam Hydroelectric Project Rehabilitation After Failure, Part A: Failure Investigation and Lessons to be Learned
A lightning strike caused electrical failure at Spokane's two Upriver power plants, resulting in the river overtopping Project embankments, and causing nearly 11. 5 million...
Pyrites Hydroelectric Project, Canton, New York
This paper describes the Pyrites Hydroelectric Project in Canton, New York, an 8-MW project completed in December 1985. The key to its successful development was a team approach that included...
Landmarks in Civil Engineering
Historic American engineering projects sampled in this article represent those documented in
Sewage Plant Engineered for Value
The Camden County (NJ) Municipal Utilities Authority was formed in 1972 to cope with suburban growth that had overloaded 34 primary treatment plants. By the early 1990s, the Authority...
Karstic Foundation Problems Sunny Point Railroad
Active limestone sinkholes have been causing problems and affecting the operation of the access railroad to the Military Ocean Terminal, Sunny Point, North Carolina (MOTSU) since 1962....
Geotechnical Exploration and Site Preparation Techniques for Large Mall in Karst Terrain
A large commercial mall and secondary developments were planned for construction in a karst area near Clarksville, Tennessee. A geotechnical exploration was conducted to evaluate the occurence...
Treatment of Karst Along Tennessee Highways
The construction and maintenance of highways in karst areas of East Tennessee has resulted in the occurrence and treatment of induced sinkholes along the ditchlines of numerous highways....
Geosynthetics for Soil Improvement: A General Report and Keynote Address
The paper summarizes major developments in the field of geosynthetics since the previous symposium in 1980. The paper addresses the engineering functions of major types of geosynthetics,...
Highway Factors in Truck Wrecks
An examination is presented of highway factors as they interact with driver and vehicle factors in large truck accident causation. Examples of highway defects are discussed along with...
Accommodation of Large Trucks: Traffic Control Issues
The objective of this paper is to identify ways that large trucks can be accommodated safely and efficiently through traffic control. Traffic control is herein defined as encompassing...
Accommodating Larger Trucks at At-Grade Intersections
When a particular intersection serves a high volume of large truck traffic, design considerations should reflect the presence of those larger vehicles. This paper discusses three intersection...
A Reassessment of Codified Limit States Design
This paper examines the nature of design codes and their relation to engineering practice. It suggests that codes impose unjustifiable and, in the long term, destructive constraints on...
A Probabilistic 3-D Short-Term Slope Stability Model
A probabilistic model to analyze the three-dimensional stability of earth slopes under short-term conditions is presented. An actual failure case is studied to show the implementation...
STOCAL-II-An Instructional Software for Random Vibrations
STOCAL-II (Computer Assisted Learning of STOchastic methods) is an instructional software for teaching random vibrations and applied stochastic processes. It is based on and is an extension...
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