Status of coal supply contracts for new electric generating units, 1976-1985 : staff report /

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Influence of Phase Connection and Terminal Conditions on Natural Frequencies of Three-Phase Transformer Windings

With the increasing use of extra high-voltage transmission in power system expansion, the manufacturers of power apparatus and the electric utilities are studying the nature of overvoltages in power systems due to lightning and, in particular, switching operations. For such analyses, knowledge of the natural frequencies of the windings of transformers under a wide variety of conditions is important. The work reported by the author in a previous paper is extended and equivalent circuits have been developed to represent several sets of terminal conditions. These equivalent circuits can be used to determine the natural frequencies and transient voltages in the windings. Comparison of the measured and the computed results obtained with a model transformer indicates that they are in good agreement. Hence, this method of analysis provides a satisfactory procedure for the estimation of natural frequencies and transient voltages in transformer windings.

Cost Heterogeneity and the Potential Savings from Market-Based Policies

Policy makers and analysts are often faced with situations where it is unclear whether market-based instruments hold real promise of reducing costs, relative to conventional uniform standards. We develop analytic expressions that can be employed with modest amounts of information to estimate the potential cost savings associated with market-based policies, with an application to the environmental policy realm. These simple formulae can identify instruments that merit more detailed investigation. We illustrate the use of these results with an application to nitrogen oxides control by electric utilities in the United States.

Fingertip Facts 2009

Santee Cooper annually published Fingertip Facts, which provides a snapshot of utility, including listings of leadership, comparative highlights, year in review, and description of their environmental stewardship.

Fingertip Facts 2010

Santee Cooper annually published Fingertip Facts, which provides a snapshot of utility, including listings of leadership, comparative highlights, year in review, and description of their environmental stewardship.

Fingertip Facts 2011

Santee Cooper annually published Fingertip Facts, which provides a snapshot of utility, including listings of leadership, comparative highlights, year in review, and description of their environmental stewardship.

Fingertip Facts 2012

Santee Cooper annually published Fingertip Facts, which provides a snapshot of utility, including listings of leadership, comparative highlights, year in review, and description of their environmental stewardship.

Fingertip Facts 2002

Santee Cooper annually published Fingertip Facts, which provides a snapshot of utility, including listings of leadership, comparative highlights, year in review, and description of their environmental stewardship.

Fingertip Facts 2003

Santee Cooper annually published Fingertip Facts, which provides a snapshot of utility, including listings of leadership, comparative highlights, year in review, and description of their environmental stewardship.

Fingertip Facts 2004

Santee Cooper annually published Fingertip Facts, which provides a snapshot of utility, including listings of leadership, comparative highlights, year in review, and description of their environmental stewardship.

Fingertip Facts 2005

Santee Cooper annually published Fingertip Facts, which provides a snapshot of utility, including listings of leadership, comparative highlights, year in review, and description of their environmental stewardship.

Fingertip Facts 2006

Santee Cooper annually published Fingertip Facts, which provides a snapshot of utility, including listings of leadership, comparative highlights, year in review, and description of their environmental stewardship.

Fingertip Facts 2007

Santee Cooper annually published Fingertip Facts, which provides a snapshot of utility, including listings of leadership, comparative highlights, year in review, and description of their environmental stewardship.

Fingertip Facts 2008

Santee Cooper annually published Fingertip Facts, which provides a snapshot of utility, including listings of leadership, comparative highlights, year in review, and description of their environmental stewardship.