Preferred rating for indoor circuit breakers with voltage range factor k 1. Lightning design for the whole terminalzone substation should be done to its ultimate design regardless of the nature of the project. A substation is a part of an electrical generation, transmission, and distribution system. Electrical substation design fundamentals learn the fundamentals of electrical, civil and structural design issues of electric power substations. E to develop a finite expression, for calculating the footing resistance in a substation. Guide for the design, construction and operation of electric. The grounding system design for gis indoor substation is proposed in this paper. The purpose of this document is to provide a general guide to the design of an air insulated switchgear ais and a gas insulated switchgear gis of an ac substation. The substation design manual is not intended to replace asset management standards, but rather.
Three keys to designing safe, reliable and efficient substations for heavy industrial facilities in may 20, a mylar party balloon blew into a substation near one of californias largest oil refineries, causing it to lose power and disrupt normal business operations for at least 12 hours. Calculationofimportantdesignparametersforgroundingsystemsi. Lower profile designs for substation highvoltage equipment may be costeffective in design and in reducing the profile that the substation. Example of substation design electrical part 65 14. The development focus for ais was on circuit breaker cb technology that would increase reliability and reduce maintenance. Lowering of the substation profile may also be accomplished by means other than underground circuits although this approach may necessitate a larger surface area, resulting in larger site requirements. Medium voltage products technical guide the mvlv transformer. Entergy will design, install, maintain, own and operate the 230 kv ring bus. Guide for the design, construction and operation of electric power substations for community acceptance and environmental compatibility this draft is for public comments only.
The function of an earthing and bonding system is to provide an earthing system connection to which transformer neutrals or earthing impedances may be connected in order to pass the maximum fault current. Fundamentals of electrical substations and switchgear. Ground wire continuity and bonding configuration back to the tower and substation, the average distance from towertotower and towerto substation, typical towerpole ground resistance. Customer substation manual 6272019 preface page 8 of 82 010. Vuspec page 3 ieee 12402000 r2012, ieee guide for the evaluation of the reliability of hvdc converter stations ieee 12462011, ieee guide for temporary protective grounding systems used in substations. The design concept of equipotential ground grids in substation building as well as connection of gis enclosures to. Substation design in online resumes, cv, curriculum. Sub station design electrical substation transformer. Guide for the design, construction and operation of. The values of these parameters have to be kept within certain established emits, keeping. Pdf substation design manual shally gupta academia. Guidelines for substation and power distribution systems. Drawing title 25251400 singer substation arrangement plan 25251401 singer substation sections 1 and 2.
Substation design references ansi c37 series protection and control equipment ansi c57 series transformers. The 21st century substation design power systems engineering. In this article we will discuss about the indoor substations and outdoor substations. The document is divided into 12 chapters starting from electrical arrangement to lightning and earthing protection. Hello all acade gurus, i am a college student and i have been given a project to design a substation single line diagram and plan layout on autocad with predefined specifications busbar schemes, lines, etc i am new to autocad and i have few questions about it. The value of maximum permitted touch potential has a dominant role in determining the design of the earthing grid. Prepared by the subcommittee on the design of substation structures of the committee on electrical transmission structures of the structural engineering institute of asce. Sub station design free download as powerpoint presentation. Between the generating station and consumer, electric power may flow through several substations at different voltage levels. The first step in designing a power substation is to design an earthing and bonding system go to content earthing and bonding. Eps was responsible for the design of the substation. Substations equipment maintenance electric power systems. The ergon energy design philosophy is to provide substations.
In these substations, the apparatus is installed within the substation building. In 1965 abb delivered the worlds first substation with gasinsulated switchgear gis. Three keys to designing safe, reliable and efficient substations for heavy industrial facilities in may 20, a mylar party balloon blew into a substation near one of californias largest oil refineries, causing it to lose power and disrupt normal business operations for at least 12. High voltage substation design and application guide eep. Filter by location to see substation designer salaries in your area. Medium voltage products technical guide the mvlv transformer substations passive users. Centralized substation protection and control has been attempted in the past based on the available technology. Scribd is the worlds largest social reading and publishing site.
A transmission substation can vary in size, with the smallest types containing circuit breakers and an electrical bus, while a larger transmission substation. The contractor shall be responsible for the complete design and engineering, overall co. By mladen kezunovic the new substation t he electricity grid was invented in the 19th century and greatly expanded in the 20th. Indoor substation a substation in which the apparatus is equipped inside the substation building is called indoor substation.
This video introduces 3d design concepts and outlines the workflows for 3d design of substations. These standards ensure meeting of ergon energys requirements. The voltage runs through the substation, and out of the feeders. Technical specification construction of 3311 kv primary sub.
Such type of substation requires less time for construction but uses more space. The following layout designs of indoor distribution substation are typical only and should not be used as construction drawings as they are presented as an example. Our substation design solution reduces the amount of time to complete design and minimizes errors that cause rework during. Entergy will construct their portion of the station to the substation fence including foundations.
Outdoor substation a substation which is used for all voltage levels between 55 kv to 765 kv is called outdoor substation. This substation is constructed using steel lattice structures to support strain bus wires and apparatus. Substation structure design guide provides a comprehensive resource for the structural design of outdoor electrical substation structures. Design guide for rural substations usda rural development. Any spare part, tool or appliance requiring indoor storage must be clearly and. A distribution substation is commonly made up of two transmission lines that provide the input, and a set of feeders that act as an output. Ground wire continuity and bonding configuration back to the tower and substation, the average distance from towertotower and towertosubstation, typical towerpole ground resistance. Jul 15, 2015 improve project delivery and better manage design information across the entire project lifecycle with intelligent substation design, a modelcentric approach that unites 3d physical and electrical design disciplines. Transmission and distribution substation projects operating. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions.
An important aspect of substation grounding system design is the calculation of the ground resistance offered by the grounding grid, and the values of the mesh and step voltages on the surface. A substation engineer should have a good understanding of the electrical equipment and layout of hv power substation. This document outlines the primary design standard for transgrid substations. Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india. Groundrod ac substation earthing tutorial 3 figure 1. For substations contracted on turnkey basis the substation contractor shall be responsible for design, material supply, transport, erection, and installation and commissioning as well as having the full responsibility for civil works including design and construction of transformer foundations and control building. Design of grounding system for an electrical substation. The transmission substation also incorporates capacitors or reactors to deal with voltage control. The skills are learned from experience and take many years to perfect. This is showing three of the five 220 kv66 kv transformers, as well as highvoltage transformer fire barriers, each with a capacity of 150 mva. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. A 50 hz electrical substation in melbourne, australia. Some designs achieve minimum emf emission by installing the low voltage cables and switchboard in a trench down the middle of the room. Indoor and outdoor substations electrical engineering.
As you can see, the overview is complex, but on the other hand the mvlv electrical substation is the synthesis of several design activities electrical, mechanical, construction. Technical specification construction of 3311 kv primary substations. Abstract the main purpose of this paper is to acquaint the reader with various types of grounding systems prevalent in an electrical substation and their importance. Design and construction specifications of the substation 4 2. Improve project delivery and better manage design information across the entire project lifecycle with intelligent substation design, a modelcentric approach that unites 3d physical and electrical design disciplines. Earthing systems design steps part one electrical knowhow. Such type of substation is mainly used for the voltage up to 1 v, but when the surrounding air is contaminated by impurities such as metal corroding gases and fumes, conductive dust, etc. Ei to design amethod to calculate the total groundresistance of a system of two substation grounding grids intertied by a bare conductor, as seen from the station where the fault occurs, and lie ground potential rise at both the substations. Such substations are usually for a voltage up to 11,000 v but can be erected for 33,000 v and 66,000 volts when the surrounding atmosphere is contaminated with. Compliance with all technical requirements all energize elements comply with the required clearances clearances verify compliance with the last requirements of the national electrical safety code or prepa diseno subw\copy of svc subst profile 2.
Calculationofimportantdesignparametersforgroundingsystemsinsu. The aim of a distribution substation is to transfer the power from a transmission system into a distribution system. Technical specification construction of 3311 kv primary. Detailed investigation of substation and preparation of boq to be done by the bidder. Eps was responsible for the design of the substation civil work, bus layout, grounding, and lighting. A project to successfully design, construct, and operate a substation begins with proper planning. White paper three keys to designing safe, reliable and. The manual is applicable for all substation projects regardless of internalexternal design delivery mode. Earth mat designing of substation free download as powerpoint presentation. Guide for the design, construction and operation of electric power substations for community acceptance and. The customer will design, install, maintain, own and operate all equipment from the division of ownership, at the fence, back to their generation units.
Prepared by the asce subcommittee on the design of substation structures, this new manual offers current recommendations developed by substation structure designers utility engineers, structural and electrical engineers, and anyone that works in the field of transmission line substation design will benefit from this manual. Grid substation design drawing index uk power networks. The solution should be standard, commercial, offtheshelf solution, to meet general standardization requirements customary in the field of. The substation consisted of two 14 mva transformers, two 8 kv breakers and nine 12. C2 appendix c table of contents substation drawings singer substation drawing no. The future substation design requires an understanding how both primary and secondary. Design of grounding system for gis indoor substation. Topics cover safety, standards, site development, grounding practices, bus configurations, ac and dc ancillary systems, and major equipment. These standards created and made available are for the construction of ergon energy infrastructure. Bus arrangements reliability cost of configuration available space basic configurations. The outdoor substations are mainly classified into two types, namely polemounted substation and foundationmounted substations.
Salary estimates are based on 19,776 salaries submitted anonymously to glassdoor by substation designer. Introduction to substation design december 45, 2017 nashville, tn page 2 overview substation design is a multidiscipline undertaking. Standard for electrical design and construction requirements for chamber substations. The station may consist of transformers, switches, circuit breakers and other auxilliary equipment. Part 3 of the course fundamentals of modern electrical substations is concentrated on substation engineering aspects, which may be very challenging and require from utility companies engineers a very diverse knowledge and experience to address these aspects. Recognizing the grids complexity and relevance, the national academy of sciences declared the electricity system. 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. Fundamentals of modern electrical substations part 3. Substation substation a station in the power transmission system at which electric power is transformed to a conveniently used form. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978.
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