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CW 100MW microwave power transfer in space

Description: A proposal is made for high-power microwave transfer in space. The concept consists in a microwave power station integrating a multistage microwave free-electron laser and asymmetric dual-reflector system. Its use in space is discussed. 9 refs., 2 figs., 1 tab.
Date: January 1, 1991
Creator: Takayama, K. (Houston Univ., TX (United States). Inst. for Beam Particle Dynamics National Lab. for High Energy Physics, Tsukuba, Ibaraki (Japan) Texas Accelerator Center, The Woodlands, TX (United States)); Hiramatsu, S. (National Lab. for High Energy Physics, Tsukuba, Ibaraki (Japan)) & Shiho, M. (Japan Atomic Energy Research Inst., Naka, Ibaraki (Japan))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Dielectric strengths of new gases and gas mixtures

Description: It is emphasized that the most effective gaseous dielectrics are gas mixtures with components chosen on the basis of fundamental physicochemical knowledge, especially on low-energy electron-molecule interactions. On the basis of such lnowledge, especially on electron attachment and electron slowing down, a number of new gases and gas mixtures have been found with breakdown strengths superior to pure SF/sub 6/. These include the unitary gases c-C/sub 4/F/sub 8/ (perfluorocyclobutane), C/sub 4/F/… more
Date: January 1, 1978
Creator: James, D.R.; Christophorou, L.G.; Pai, R.Y.; Pace, M.O.; Mathis, R.A.; Sauers, I. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Wolf Point Substation, Roosevelt County, Montana

Description: The Western Area Power Administration (Western), an agency of the United States Department of Energy, is proposing to construct the 115-kV Wolf Point Substation near Wolf Point in Roosevelt County, Montana (Figure 1). As part of the construction project, Western's existing Wolf Point Substation would be taken out of service. The existing 115-kV Wolf Point Substation is located approximately 3 miles west of Wolf Point, Montana (Figure 2). The substation was constructed in 1949. The existing Wolf… more
Date: May 1, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Superconductivity: Past, present, and future

Description: This paper provides an overview of superconductor research and development activities, with emphasis on the potential of high-{Tc} materials for future applications. Superconductor applications are grouped under the following categories: electronics/instrumentation, bulk material/castings, research devices, industrial/commercial, electric power, and transportation/propulsion. Near-term applications are typically based on thin film and cast forms of high-{Tc} materials, while large-scale applica… more
Date: January 1, 1992
Creator: Uherka, K.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Study of electric field and ion effects on HVDC lines

Description: Progress is reported in research on the electric field and ion effects of bipolar HVDC transmission lines with voltages up to 1500 kV and on the space charge generation characteristics of different types of conductors for HVDC transmission. (LCL)
Date: January 1, 1980
Creator: Comber, M.G. & Johnson, G.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Economic assessment of the utilization of lead-acid batteries in electric utility systems. Final report

Description: Specific applications in which lead--acid batteries might be economically competitive on an electric utility system are identified. Particular attention is given to searching the Public Service Electric and Gas Company (PSE and G) system for installations of batteries which could defer or cancel costly transmission and/or distribution projects. Although the transmission and distribution data are based on specific applications on the PSE and G system, the generation data are based on a national … more
Date: April 1, 1977
Creator: Johnson, A.C.; Hynds, J.A.; Nevius, D.R.; Nunan, G.A. & Sweetman, N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Research for Electric Energy Systems

Description: This report documents the technical progress in investigations. The first investigation is concerned with the measurement of magnetic fields in support of epidemiogical and in vitro studies of biological field effects. NIST cohosted a workshop on exposure and biological parameters that should be considered during the vitro studies with extremely low frequency (ELF) magnetic and electric fields. Also, equations were developed to predict the magnetic field in a parallel plate magnetic field expos… more
Date: June 1, 1991
Creator: Anderson, W.E. (ed.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Superconducting fault current limiter. Sixth quarterly technical progress report, November 8, 1979-February 7, 1980

Description: Progress in developing an improved superconducting fault current limiter (SCFCL) is described. A mathematical model of the most promising SCFCL design was used for determining transient characteristics, thermal recovery characteristics, and for evaluating types of shunt resistors. Some experimental work was done on Nb/sub 3/Sn film properties. (LCL)
Date: January 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Liquid metal plasma valve development

Description: A program for the development of liquid-metal plasma valves (LMPVs) is discussed in detail. The program consisted of two tasks. The first was the development and testing of valves in the laboratory and the fabrication, instrumentation, testing and in-service operation of two valves at the Bonneville Power Administration (BPA) facilities of the Pacific Intertie HVDC Power Tansmission System at Celilo, Oregon. The second task was the design, development, fabrication, installation, and operation o… more
Date: June 1, 1978
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Draft 1992 : Operations, Maintenance, and Replacement 10-Year Plan.

Description: Two years ago, BPA released its first-ever Operations, Maintenance, and Replacement (OM R) 10-Year Plan. That effort broke new ground and was an extensive look at the condition of Operations, Maintenance, and Replacement on BPA's power system. This document -- the 1992 OM R 10-Year Plan -- uses that original plan as its foundation. It takes a look at how well BPA has accomplished the challenging task set out in the 1990 Plan. The 1992 Plan also introduces the Construction Program. Construction'… more
Date: May 1, 1992
Creator: United States. Bonneville Power Administration.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Field validation of cable monitoring and rating system (CMARS) laboratory model. Semi-annual report, 1 May 1979-31 December 1979

Description: One year of research on validating the performance of the Cable Monitoring and Rating System (CMARS) is reported. The performance testing was conducted on underground 230-kV and 345-kV pipe type cable circuits owned by the New Jersey Public Service Electric and Gas Co. Laser temperature monitoring systems and a data acquisition system were installed. Software installation and development is discussed. The CMARS testing program is described. (LCL)
Date: January 1, 1980
Creator: Englehardt, J.; Harris, H.; Kasny, E.; Orifice, D.; Patton, R. & Sottovia, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Wave propagation in a dc superconducting cable, Part I: analysis

Description: A dc superconducting cable design consisting of four concentric metallic cylinders, of which two carry the load current and two comprise the cryogenic enclosure, is considered. When a transient voltage is impressed across such a cable, the major dielectric may not be fully stressed to its design value, and unwanted voltage stresses may develop across other parts of the cable. The surge-voltage propagation characteristics of a four-conductor dc superconducting cable for a step-function input vol… more
Date: January 1, 1980
Creator: Chowdhuri, P. & Mahaffy, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Outages of electric power supply resulting from cable failures Boston Edison Company system

Description: Factual data are provided regarding 5 electric power supply interruptions that occurred in the Boston Metropolitan area during April to June, 1979. Common to all of these outages was the failure of an underground cable as the initiating event, followed by multiple equipment failures. There was significant variation in the voltage ratings and types of cables which failed. The investigation was unable to delineate a single specific Boston Edison design operating or maintenance practice that could… more
Date: July 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Assessment study of superconducting fault-current limiters operating at 77K

Description: The possible impact of nitrogen-cooled superconductors on the design and cost of superconducting fault-current limiters is assessed by considering the technical specifications such devices must meet and by comparing material properties of 77-K and 4-K superconductors. The main advantage of operating superconductors at 77 K is that the refrigeration operating cost is reduced by a factor of up to 25, and the refrigeration capital cost is reduced by a factor of up to 10. The heat capacity of 77 K … more
Date: January 1, 1992
Creator: Giese, R. F. & Runde, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development of an improved extruded dielectric cable rated 230 kV

Description: Work performed on developing an improved 230 kV extruded solid dielectric cable, the techniques of jointing such cables and the testing of terminations suitable for operation at that voltage level are described. Difficulties were encountered during manufacture in applying the semi-conducting extruded conductor shield. A new higher melt point compound solved the problem. A joint capable of operating at the 230 kV level was developed but showed a deficiency under voltage impulse testing while the… more
Date: May 1, 1977
Creator: Blais, L D; Traut, R T & Bolden, G N
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Improved vacuum surface flashover performance of polymer insulators by the use of unique triple junction designs

Description: Previous research and theories about surface flashover in vacuum indicate that the triple junction region plays a critical role in the insulator flashover process. To attempt to improve upon the performance of the standard 45-degree frustum insulator, three different insulator geometries with modified triple junction regions were investigated. Two samples of each geometry, each 2 cm thick, were tested to obtain the flashover voltage levels in a low 10{sup {minus}5} Torr vacuum using a 1.2-micro… more
Date: January 1, 1991
Creator: Smith, J. D.; Kahaian, D. J.; Honig, E. M.; Montoya, R. E.; Rosocha, L. A.; Allen, G. R. (Los Alamos National Lab., NM (United States)) et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Factors influencing electric utility expansion. Volume II

Description: This report, Vol. 2, submitted by the General Electric Co., identifies factors that should be considered in planning interconnected systems and discusses how these factors relate to one another. The objective is to identify all the factors and classify them by their use and importance in arriving at a decision. Chapter 2 discusses the utility system and its system behavior characteristics, emphasizing behavior that affects the planning of the bulk-power generation and transmission system. Chapt… more
Date: January 1, 1977
Creator: Masud, E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Puget Sound Area Electric Reliability Plan : Supplemental Environmental Analysis, Schultz Substation.

Description: This document describes the purpose, function, and the environmental consequences of the proposed Schultz substation near Ellensburg, Washington. The affected environment is described in detail, including aerial survey photographs. The impacts on vegetation, fish and wildlife, soils, and water resources are described. (GHH)
Date: April 1, 1992
Creator: United States. Bonneville Power Administration.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Superconducting fault current limiter. Fourth quarterly technical progress report, May 8-July 7, 1979

Description: Up until now, this project has established performance objectives for the superconducting fault current limiter (SCFCL) in terms of the limitations of circuit breakers and strategies for locating the SCFCLs within the system. During this fourth quarter, the possibility has also been explored of using SCFCLs to protect specific machines, namely superconducting alternators and transformers. Unique characteristics and requirements of these machines are identified in section 2 of this report and th… more
Date: January 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Assessment of research directions for high voltage direct current power systems. Quarterly technical progress report, April 1, 1980-June 30, 1980

Description: The activity reported herin is the proposed system study to examine the dynamic relationship of integrated ac/dc systems wherein the existence of direct current circuit breakers is postulated.
Date: July 1, 1980
Creator: Long, W F
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Bonneville Power Administration, Office of Engineering 10-Year Plan, 1992-2001 : Draft.

Description: For over 50 years, the Bonneville Power Administration (BPA) has evolved to supply electric power to more than 170 customer utilities and direct service industries across 14,800 miles of high voltage transmission lines. BPA's Office of Engineering provides the planning, development, and engineering for the required expansion, upgrade, and replacement of the transmission system. The purpose of this 10-Year Plan is to present strategies to maintain a reliable energy delivery system within changin… more
Date: May 1, 1992
Creator: Engineering., United States. Bonneville Power Administration. Office of
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Feasibility study: Application of RCM techniques for substation maintenance at the Bonneville Power Administration. [Reliability Centered Maintenance (RCM)]

Description: This feasibility study examines reliability centered maintenance (RCM) as it applies to Bonneville Power Administrations (BPA) substation maintenance program. Reliability techniques are examined in evaluated. Existing BPA equipment maintenance procedures are documented. Equipment failure history is considered. Economic impacts are estimated. Various equipment instrumentation methods are reviewed. Based on this analysis a prototype system is proposed. The prototype will be implemented in two pha… more
Date: May 28, 1992
Creator: Purucker, S. L.; Tonn, B. E.; Goeltz, R. T.; James, R. D.; Kercel, S.; Rizy, D. T. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Electromagnetic compatibility, tropospheric and ionospheric aspects of SPS MPTS operations

Description: The results of a preliminary study of the effects of operation of a Solar Power Satellite (SPS) on the general performance of terrestrial and space based electromagnetic systems are given. In addition, the effects of a passing high energy Microwave Power Transmission System (MPTS) through the troposphere and through the ionosphere are also considered. The SPS as envisioned will be a satellite system in geosynchronous orbit with a solar array of about 144 square kilometers. The purpose of the SP… more
Date: March 1, 1978
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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