When a decision to supply power at mv has been made, there are two widelyfol lowed methods of proceeding. Implementation of an offtheshelf solution for substation design which supports electromechanical, civil and electrical design. All rus borrowers rus electric staff effective date. Fundamental concepts in substation design ieee conference.
Typical substation electrical design services include. Pdf design guide for rural substations vallerie jane. A good design attempts to strike a balance between these two, to achieve reliability without excessive cost. Chapter iv system planning, design, construction, and protection nei electric power engineering page iv8 electric outgoing distribution circuits complete with metering and circuit protection as circuit breakers or reclosers a substation. These rural substations are very simple in design, and use metalclad or metal enclosed switchgear installed in buildings as the heart of the substation. The ergon energy design philosophy is to provide substations. Design the main considerations taking into account during the design process are.
The distribution systems network carries electricity from the. The requirements in the design and other factors to be considered before the design as well as the beme for the design are thoroughly looked at. Relying on dno standard designs is not appropriate. The decision of a mv or lv supply will depend on local circumstances and considerations such as those me n tioned above, and will generally be imposed by the utility for the district concerned. Small rural substations fed via overhead lines can often have a high epr and be classified as hot. Solutions designed for your issues you can count on powers team of experts to design solutions from the practical to the creative for the substation issues you face today. Prepared by the subcommittee on the design of substation. Owners supply materials osm 3311 kv power transformers, station 330.
The solution will be based on implementation of an offtheshelf system or systems, with preparation for work at iec israel. Greenfield site is a term used to describe undeveloped land in a city or rural. Design guide for rural substations electrical engineering portal. If the earth grid impedance is less than 10 ohm then the design. United states department of agriculture rural development.
Substations volume i design parameters a pdh online. In this article, i will share the book of substation design, chapters covered in the book, total pages in the book, author of the book, etc. A substation is a part of an electrical generation, transmission, and distribution system. Design guide for oil spill prevention and control at substations to. Other requirements of the substation electrical system 56 10. Distribution system planning, load characteristics, subtransmission lines, distribution substations, design. Pdf simplifying protection system design for distribution. Areas outside the substation do not need to be considered.
Chapter 4 addresses the important associated issue of maximizing service connections in completed rural electrification schemes. Reliable, secure, accessible and robust power transmission and distribution systems are critical elements in the push to meet the growing global demand for electricity. So depending on what exactly you are searching, you will be able to. This course includes a multiplechoice quiz at the end, which is designed to enhance the understanding of the course materials. Technical guide the mvlv transformer substations abb group. The zone of influence from a rural substation can pose a risk to personnel and livestock. Design guide for sectionalizing distribution lines to. Urban substations are usually built in brick, whereas rural ones are often. It covers rural transmission and distribution with airinsulated, outdoor substations up to. This document outlines the primary design standard for transgrid substations. Transgrid publishes this information under clause 5.
Technical specification construction of 3311 kv primary sub. Simplifying protection system design for distribution substations page 2 of designing the wiring from the switchgear to the protection panels, cutting out the old wiring, installing the new panels, installing the field wiring between the switchgear and the relay panels, and installing new doors for the switchgear. They are in turn divided into urban or rural substations. The fence is connected to a separate grounding conductor. Where a substation has a metallic fence, it must be properly grounded to protect people from this hazard. Edms, printed to an electronic drawing set adobe pdf and issued to the project. Design guide for rural substations the link and table of contents for the design guide developed for the united states department of agriculture. Mipsycon 2012 simplifying protection system design for. The substation design manual is not intended to replace asset management standards, but rather. Between the generating station and consumer, electric power may flow through several substations. Ability to produce applicable drawings from rough sketches, notes, vendor drawings, and such. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978. Engineering service contract electric system design and construction agreement, made, between.
Electrical distribution is the final stage in the delivery of electricity. United states department of agriculture rural development utilities programs bulletin 1724e302 subject. The substation design manual is not intended to replace asset management standards, but rather to act as a reference document that crossreferences existing standards and process documentation and plugs any gaps where asset management documentation does not exist. This volume is a broad overview of the design factors and data.
This is volume i of a multivolume set of courses on the design of rural electric substations. United statesdepartment ofagriculturerural design guide forutilitiesservicerus bulletin rural substations1724e300issuedjune 2001 2. The course begins with a very general overview of the types of substations and their functions and then explains issues with siting a substation including weather and environmental issues. Possible design responsibilities of the engineer are covered, including preparation of construction drawings, material, equipment and labor specifications, and any other engineering design. A distribution substation is served by two transmission lines, each connected to a 40mva foa transformer.
Design guide for rural substations rural development. Prepared by the subcommittee on the design of substation structures of the. Iec 61850 is the global standard for communication in substations. Greenfield site is a term used to describe undeveloped land in a city or rural area hv high voltage. Medium voltage products technical guide the mvlv transformer. The level of design detail can be customized from minimal design consultation and advice to a complete design package with specifications and drawings.
A protection system design for the small rural substation based on the standard technology in use. The requirements in the design and other factors to be considered before the design as well as the beme for the design are thoroughly. We have successfully completed thousands of substation projects and have the versatility to design all types of substations from 5 kv through 500 kv. System planning, design, construction, and protection. The first step in planning a substation layout is the preparation of a one line diagram which shows in simplified form the switching and protection. Hv and lv earths can be combined if the grid impedance is less than 1 ohm. Possible design responsibilities of the engineer are covered, including preparation of construction drawings, material, equipment and labor specifications, and any other engineering design services that may be required. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations. December 2008 ice storm chapter iv system planning, design, construction, and protection nei electric power engineering page iv5 figure iv3 two 34. It covers rural transmission and distribution with airinsulated, outdoor substations up to 345 kv. Substation layout sizing and layout, control panel plan and elevation design, equipment foundation and oil containment design. Pdf rural electrification design ogungbure semilogo. Simplifying protection system design for distribution substations 1.
Pdf a simplified method for calculating the substation. Apply to designer, electrical designer, electrical engineer and more. Subpart e, electric system design, the latest edition of the national electrical safety code nesc, american national standards institute ansi c2, must be followed wherever applicable to the work. The design should also allow expansion of the station, when required. Transmission and distribution systems provide a lifeline to rural. Lightning arrester the substation equipments such as conductors, transformers, etc. United statesdepartment ofagriculturerural design guide forutilitiesservicerus bulletin rural substations1724e300issuedjune 2001. Design guide for rural substations linkedin slideshare. This bulletin provides a basic design guide and a reference tool for designing rural substations. The input for a distribution substation is typically at least two. Rus bulletin 1724e300 design guide for rural substations. It covers rural transmission and distribution with.
Familiarity with raster design andor bentley descartes. It enables integration of all protection, control, measurement and monitoring functions within a substation. Is a term used to describe undeveloped land in a city or rural area. Earthing design of 11kv and 33kv rural substations in the uk.
Substation design volume ii physical layout instructor. Substation design guide a pdh online course for engineers. Pdf design guide for rural substations luis manuel. An overview of substation design and general information for the planning and preparation required to design a substation are also presented. A simplified method for calculating the substation grounding grid resistance article pdf available in ieee transactions on power delivery 92. Selection of the location of a substation must consider many factors. Distribution substations michigan technological university. In a substation surge arrester is located at the starting of the substation as seen from incoming transmission lines and is the first equipment of the substation.
Substation construction manual page 2 of 57 reference ni000401r122 ver 3 ergon energy corporation limited abn 50 087 646 062 ergon energy queensland pty ltd abn 11 121 177 802 4. This series of courses are based on the design guide for rural substations, published by the rural utilities service of the united states department of agriculture, rus bulletin 1724e300, june 2001. Design guide for rural substations descarga libros. The rural distinction implies that only openair substation designs are covered though many of the concepts and ideas presented herein are applicable to urban substations.
Electrical book of substation design hello guys, welcome back to my blog. Problems can arise as the sites are fed entirely, or in part, by overhead line this provides no return path for the fault current which is instead injected into the ground. The utility that owns the substation uses the following loading criteria. Rus bulletin 1724e300 design guide for rural substations issued june 2001, 764 pages, pdf. To include the possible range of designing landscapes with high voltage substations, four design. Possible design responsibilities of the engineer are covered, including preparation of construction drawings, material, equipment and labor specifications, and any other engineering design services that may be. This volume is a broad overview of the design factors and data needed to design a substation. Surge arresters are generally connected between phase conductor and ground. Small rural 11kv and 33kv substations can often be problematic to earth safely. Get design guide for rural substations pdf file for free from our online library pdf file. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions.
The first step in planning a substation layout is the preparation of a oneline diagram which shows in simplified form the switching and protection. Cost sufficient reliability without excessive cost 3. Inspections and tests in situ prior to putting into service 61. United states department of agriculture rural utilities service rus bulletin 1724e300subject. Rus rural utilities service nema national electric manufactures assoc. This bulletin covers rural transmission and distribution with airinsulated. Design guide for rural substations electrical substation. Surge arresters or lightning arresters discharge the over voltage surges to earth and protect the equipment insulation from switching surges and lightning surges. Design guide for rural substations usda rural development. The course materials are based entirely on the design guide developed for the united states department of agriculture. Equipped with from one to six transformers, substations range in size or capacity from as little as 5 mva for a small, singletransformer substation, serving a sparsely populated rural area, to more than 400 mva for a truly large sixtransformer station, serving a very dense area within a large city. Power substation guides, research papers and studies eep.
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