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Rural Electric Power Conference, 2009. REPC '09. IEEE

Date 26-29 April 2009

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Displaying Results 1 - 22 of 22
  • [Title page]

    Publication Year: 2009 , Page(s): i
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  • [Copyright notice]

    Publication Year: 2009 , Page(s): ii
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    Freely Available from IEEE
  • Objectives

    Publication Year: 2009 , Page(s): iii - iv
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    Freely Available from IEEE
  • Program schedule

    Publication Year: 2009
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    Freely Available from IEEE
  • Sponsors

    Publication Year: 2009 , Page(s): viii
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  • Executive commmittees

    Publication Year: 2009 , Page(s): ix - xii
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  • Table of contents

    Publication Year: 2009
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  • The impact of a “fuse blow” scheme on overhead distribution system reliability and power quality

    Publication Year: 2009 , Page(s): A1 - A1-6
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (209 KB) |  | HTML iconHTML  

    This paper addresses the impact of a fuse blow philosophy on long lines commonly found in rural electric utilities as well as shorter lines which are ubiquitous in more urban areas. It also assesses the differences in the impact of these schemes in terms of both power quality (momentaries) and reliability issues. Detailed analysis of the impact on the utility system is presented and discussed. View full abstract»

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  • Loose fuse caps impact reliability

    Publication Year: 2009 , Page(s): A2 - A2-4
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (954 KB) |  | HTML iconHTML  

    Improper installation of fuses in cutouts can result in unplanned outages, some at the feeder level. Whenever installing fuses in fuse cutout fuse tubes, the supplier's instructions should be followed. Key among these is the proper torque on the cap of the fuse tube. Loose caps result in heating. This heating acts as a preload and causes faster fuse clearing than TCC's indicate. This results in un... View full abstract»

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  • Impact of green power generation on distribution systems

    Publication Year: 2009 , Page(s): A3 - A3-8
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (928 KB) |  | HTML iconHTML  

    This paper discusses green power distributed generation (DG) sources (of 10 MW or less), which are connected to the utility system at the distribution level, and their impact on distribution system reliability. Distribution circuits are designed to supply radial loads. Therefore, the introduction of green generation can result in: redistribution of fault and load currents on the feeder circuit, ov... View full abstract»

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  • Taming the seasonal load with critical peak wholesale

    Publication Year: 2009 , Page(s): A4 - A4-8
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (753 KB) |  | HTML iconHTML  

    Imagine a load class with the potential to double total system demand and runs only four months of the year - in some places as little as 400 hours per year. Now add a double dose of weather variability to the mix - temperature and rainfall. If it rains, this load may not be running the next day regardless of temperature. If weather is dry, the load can create annual peaks. This load can run ldquo... View full abstract»

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  • Selection of distribution feeders for implementing distributed and renewable energy applications

    Publication Year: 2009 , Page(s): B1 - B1-10
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (353 KB) |  | HTML iconHTML  

    Climate change concerns, mandated renewable portfolio standards, lucrative government incentives, and accelerated cost reduction in renewables and distributed energy applications are driving steep growth in system installations. distributed energy resources (DER) are not commonly connected to a bulk power transmission system, instead are interconnected near the load in the electric power distribut... View full abstract»

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  • Ten steps to a smarter grid

    Publication Year: 2009 , Page(s): B2 - B2-7
    Cited by:  Papers (18)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (274 KB) |  | HTML iconHTML  

    This paper includes a ten-step plan for electric utilities to to make their distribution grid a modern one, a smart one, an agile one. This plan will is presented in the form of a Smart Grid audit that can be used continuously to assess and deploy practical options to make the grid smarter. View full abstract»

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  • Rural distribution system planning using Smart Grid Technologies

    Publication Year: 2009 , Page(s): B3 - B3-8
    Cited by:  Papers (17)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (339 KB) |  | HTML iconHTML  

    The 2007 Energy Independence and Security Act states that all utilities must consider smart grid Technologies when making system investments and improvements. This paper will: Review the language in the Act that sets this requirement; Review the Values and Characteristics of a Smart Grid as defined by the Department of Energy; Discuss how these Values and Characteristics specifically can be applie... View full abstract»

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  • An effective poor man's ‘SMART’ distribution volt/var management system

    Publication Year: 2009 , Page(s): B4 - B4-8
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1005 KB) |  | HTML iconHTML  

    The advanced capabilities of modern LTC transformer and regulator tapchanger controls, distribution capacitor bank controls and communications equipment allows for an unprecedented ability to control the voltage profile from distribution substation to the ultimate customer. The use and coordination of these capabilities can result in immediate CVC programs that can affect the average electric powe... View full abstract»

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  • The benefits of distribution automation to a rural electric cooperative

    Publication Year: 2009 , Page(s): B5 - B5-8
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1851 KB) |  | HTML iconHTML  

    United cooperative services began implementation of several levels of distribution automation approximately 10 years ago. Since that time, the cooperative has seen many successes and has learned valuable lessons from the system implementation. Automating a distribution system outside of the substation can bring substantial benefits to the end-consumers by improving system reliability, planning, de... View full abstract»

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  • Testing numerical transformer differential relays

    Publication Year: 2009 , Page(s): B6 - B6-6
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (396 KB) |  | HTML iconHTML  

    Numerical transformer differential relays require careful consideration regarding how to test them properly. These relays provide different types of protection such as restrained phase differential, high set phase differential, restrained ground differential and overcurrent protection. All protection elements that are enabled should be adequately tested. A common commissioning practice is to test ... View full abstract»

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  • Distribution feeder voltage regulation control

    Publication Year: 2009 , Page(s): C1 - C1-7
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (190 KB) |  | HTML iconHTML  

    Step voltage regulators are the work horse of distribution feeders for maintaining the voltage at every customer's meter to be within the ANSI standards. A step voltage regulator can be viewed as a tap changing autotransformer. This paper will apply a model of the step voltage regulator. The IEEE 13 Node Test Feeders will be used to demonstrate how the regulator is controlled in order to maintain ... View full abstract»

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  • Distribution transformer size optimization by forecasting customer electricity load

    Publication Year: 2009 , Page(s): C2 - C2-6
    Cited by:  Papers (1)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (478 KB) |  | HTML iconHTML  

    For power utilities, determining an efficient transformer size for a power customer is a challenge depending on the many different specifications of the structure or area being developed by the client. Supplying a transformer much larger than necessary to a customer adds capital costs to a project, as well as increased future costs of transformer losses. Under-sizing a transformer for a client lea... View full abstract»

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  • Computerized economic analysis of alternative line designs a “how to” approach for quick solutions

    Publication Year: 2009 , Page(s): C3 - C3-8
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4111 KB) |  | HTML iconHTML  

    This paper presents an argument for performing economic conductor analysis during utility planning, and presents an approach to developing relatively simple software which can be used to efficiently evaluate alternative conductor sizes and construction types for new or rebuilt lines including a no action alternative. The paper will describe how multiple variable inputs into the software will allow... View full abstract»

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  • Application of series air-core inductors to distribution capacitor banks improves reliability

    Publication Year: 2009 , Page(s): C4 - C4-5
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1362 KB) |  | HTML iconHTML  

    Many utilities have experienced blown fuses on three phase distribution capacitor banks caused by failed capacitor cells, lightning, back-to-back capacitor switching transients, etc. Traditional capacitor protection on distribution circuits includes lightning arrestors, expulsion fuse current limiting fuse links, and pre-insertion inductors. This paper will summarize the experiences of utilizing a... View full abstract»

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  • Arc flash analysis approaches for medium-voltage distribution

    Publication Year: 2009 , Page(s): C5 - C5-8
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (478 KB) |  | HTML iconHTML  

    Arc flash is an important consideration for personnel safety. This paper explores available ways to evaluate arc flash severity for primary distribution systems, both in equipment and in open air. Results from staged tests and from utility monitoring data suggest the need to use longer arc lengths than normal as input into open-air arc flash calculations. Results from tests also show how fast arcs... View full abstract»

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