Proposed substation details are to be submitted for acceptance before. A new 211kv zone substation is to be designed, constructed. The substation minimum fault levels are often limited by the downstream distribution network, but where there. Design,supply,manufacturing,erection, te 2 11 kv substation with sas at i. Recognizing the grids complexity and relevance, the national academy of sciences declared the electricity system the worlds largest machine and placed it at the top of the list of the. Abb zs1 medium voltage substation files 3d cad model. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. Existing and proposed single line diagram for 3311 kv.
The substation and its components shall be mounted on a galvanised steel plinth. Edms, printed to an electronic drawing set adobe pdf and issued to the project manager. The main function of the substation is to collect the energy transmitted at high voltage from the generating station and then reduce the voltage to an appropriate value for local distribution and gives facilities for switching. Single line diagram of 11kv substation i want the attached picture to be made perfectly on autocad or related software so that, i can print the electrical single line diagram out. Technical specification construction of 3311 kv primary. The contractor shall finalize the layout arrangements in case of new substations in line with this specification with the approval of the engg incharge which shall be meeting at least the basic minimum electrical clearances as specified in the schedules. The substation layout shall make allowance for preventive or corrective maintenance within the outage constraints specified in clause 3. Design of earthing grounding system in a substation grid. The two 25mva 211kv grid transformers at lochay power station were manufactured in 1958 and form an important part of the she transmission system. The electricity substation is a network of electrical equipment which is connected in a structured way in order to supply electricity to end consumers. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Downer was engaged by ausgrid to design and construct the strathfield south 211kv substation at 79 dunlop st, strathfield south nsw. Design, manufacture and of compact substation of 11kv415 volts, equipped with 2000 kva cast resin transformer, 4 way 11kv ring main unit consisting of 2 nos.
You can contact us 24 hours a day, 7 days a week, 365 day a year. Important formulas for designing a substation grid earthing system. Electrical substation components list diagram, working. Manual for transmission lines and substation construction and. Western power distribution is the electricity distribution network operator for the midlands, south wales and the south west.
The complete package substation with all components fittedshall be suitable to be transported by a standard rta approved vehicle without the need for special permits. The two primary distribution feeders of the substation illustrated in figure 1 are protected by either power circuit breakers or automatic circuit reclosers. Access for maintenance shall be provided as follows. Secondary substation an assembly of high voltage switchgear and transformers up to 11kv together with associated control and ancillary equipment where the lower voltage is 400230v, all within a secure enclosure. Single line diagram of 11kv substation autocad cadcam. The substation shall have suitable 24 hour accessegress for sp energy networks authorised personnel. 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. Secondary substations receive power at 6633kv which is stepped down usually to 11kv. Apr 16, 2018 inplant training about 110kv 11kv substation 1. Pdf personnel safety cum consistency is the important consideration in the functioning of the power systems. Key diagram 11kv400v indoor substation iiteeeestudents. Inplant training 15ee67p brp, 6thsem,deee 1 201718 chapter1 introduction a substation is a part of an electrical generation, transmission, and distribution system. Flexibility is provided through tailored configurations or packaged.
The rec standard mentions that an outdoor type 3311 kv substation should have 2 power transformers and 3 outgoing feeders. Sirius 2kv substation preliminary design report document number revision no date page pdf. Jul 20, 2018 owners existing and proposed single line diagram for 3311 kv. Design parameters and standard layout of a 3311 kv substation. National grid substations technical specification ngts 2. Existing and proposed single line diagram for 3311 kv aska s. Sp4008870 typical 11kv brick built substation 3 panel board with metering 6 sp4049060 typical 11kv brick built substati on d or g type rmu with metering. The number of 33 kv incoming feeder may be one or two. Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india. This tutorial is made for how to draw and design electrical 11kv substation single line diagram easily. Upon loss of 11kv power supply from either primary substations a or.
The nominal discharge current rating of the lightning arresters shall be 5 ka. Substation design standards for the design of all other substation equipment, such as earth grid, busbars, plant connectors, strung bus, earthwires and structures. In case of number of 211kv substations are more, project loads. Manual for transmission lines and substation construction and maintenance activities volume i best management practices volume ii permits prepared for prepared by hdr engineering, inc 701 xenia avenue south, suite 600 minneapolis, minnesota 55416 february 2007. The substation design manual is not intended to replace asset management standards, but rather. I want all the equation which is not shown in pdf file of design study for 3311 kv substation, distribution and protection in the city of kenya so what can i do. The cross section of the buried cable should calculated in accordance with the value of the phasetoearth short. Jun 08, 2011 the rated voltage of lightning arresters shall be 9 kv rms. The power transformer, circuit breaker, busbar, insulator, lightning arrester are the main components of an electrical substation. Single line diagram of 11kv substation substation provides the energy supply for the local area in which the line is located. Jul 28, 20 these are also referred to ehv substations.
Packaged substations are tailored to individual customer requirements using products from the comprehensive range, providing a convenient, single source packaged substation with minimum time and cost. Figure 3 shows the load forecast of dalkeith ss obtained from the planning department. The 3phase, 3wire 11 kv line is tapped and brought to the gang operating switch installed near the substation. The thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. Projects product 11kv 433v mobileskid mounted substation sheet 2 of 46 details of equipments.
There is numerous electrical substation components like outgoing and incoming circuitry each of which having its circuit breakers, isolators, transformers, and busbar system etc for the smooth functioning of the system. 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. Pdf design of groundmat for 11kv substation using auto grid pro. To overcome the under voltage at the 11kv, 33kv feeder buses and 2 kv buses capacitor bank of suitable ratings are added. Earthing system is made of a mesh of buried bare copper cable, with additional earth rods, and shall be calculated, being recommended to use ieee std. Jan2018 rev5 zonewisephasewise load details with respective 211kv substations to be provided if the number of 211kv substations is two or more. Autocad, cadcam, solidworks, engineering, electrical engineering. Design guide for rural substations usda rural development. Design study for 33 11 kv substation, distribution and protection in the city of kenya.
The single line diagram of the substation is simulated in etap based upon actual data, and it is seen that at the 11kv, 33kv feeder buses and 2 kv buses there is under voltage. Electrical switchyard is usually a part of substation where electricity is transferred from one voltage to another for the transmission and distribution purpose. Ergon energy corporation limited abn 50 087 646 062 ergon energy queensland pty ltd abn 11 121 177 802. Design,supply,manufacturing,erection, te 211 kv substation with sas at i. The electrical substation is the part of a power system in which the voltage is transformed from high to low or low to high for transmission, distribution, transformation and switching. Protected data subject to disclosure restrictions see protected rights notice on cover page. A unit substation comprises an 11kv 400v transformer fitted with a directly mounted ring main unit and an lv fuse cabinet. The work includes the design, manufacturing, training, testing and inspection at factory, export packing, shipping and delivery to each site, erectioninstallation, testing and commissioning for the following 3311kv ss equipment including civil works. Design of 6611kv, 20mva substation before the ratings of various items of equipments in a substation are chosen and their locations in the substation decided it is necessary to draw a single line diagram, also called key diagram. This paper is more focused on the design of earthmat for a 11kv substation. Distribution bulk substations pmu 233kv, 211kv transformer capacity. The demand of electricity is being increased day by day. Fundamentals of electrical substations and switchgear.
Substation control sharjah, uae substation equipment. Western power distribution substation construction. The standard layout guides for the general arrangement of the equipments, structures, busbars etc. Our electrical substation construction and maintenance division is a full service substation contractor specializing in all aspects of 30kv to 500kv substation construction from turnkey greenfield construction to retrofit work. Power supply guidelines for major projects 7 of 27 issue. A secondary substation containing only high voltage switchgear. Once at site the substation shall be suitable to be lifted by a crane off the truck and placed on.
Oct 07, 2014 the standard instruction for construction of 3311 kv substation is given in rec standards which specifies the layout along with the switchgear. Substation ratings specification powerlink queensland. Some designs achieve minimum emf emission by installing the low voltage cables and switchboard in a trench down the middle of the room. In todays life electricity plays a very vital role. Zone substation design and construction ergon energy. The purpose of the new zone substation at strathfield south is to address asset condition issues at enfield zone substation. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978. Design study for 3311 kv substation, distribution and protection in. Appendix d substation and cable route design report. Download this free cad block of a substation enclosure including dimensions fully annotated text and colour hatch. Bharat heavy electricals limited high pressure boiler planttiruchirappalli 620014, tamil nadu, india an iso 9001 capital equipment materials management company page 1 of 1 enquiry notice inviting tender phone. It is a usual practice by many electrical utilities to prepare oneline diagrams with. Load forecast of dalkeith substation an 11kv 800a feeder breaker is required for the interconnection between dalkeith substation. The new substation t he electricity grid was invented in the 19th century and greatly expanded in the 20th.
Substation layout electrical substation electricity. Design,supply,manufacturing,erection, te sting and. This will be applicable to the effectively earthed 11 kv systems coefficient of earth not exceeding 80 percent as per is. The key diagram of this substation can be explained as under. The first step in planning a substation layout is the preparation of a oneline diagram, which shows in simplified form the switching and protection arrangement required, as well as the incoming supply lines and outgoing feeders or transmission lines. This report includes preliminary specifications for the supply of submarine 34. 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. Replace previous bulletin 651 with this bulletin and file with 7 cfr part 1724. Sirius substation preliminary design report rev0 july 2015. There must be provision for 2 additional 11 kv outgoing feeder for load enhancements in future.
This cad design is ideal for your planning application drawings. The power station is supplied from the killin 233kv grid substation through the 2kv single overhead line. We upgrade existing facilities and work with your experts to install stateoftheart equipment. The cad file is drawn in plan and elevations at imperial scale. In addition, the substation shall have suitable 24 hour streetlevel vehicular accessegress for company equipment, in line with the requirements as details in sp energy networks documents esdd02012 and sub03017. Transmission network and distribution network where the transmission voltage is step down to distribution voltage. Other combinations of directly mounted attachments to the transformer may. A design overview of the 11kv power distribution supply. Technical specification construction of 3311 kv primary sub. Design of groundmat for 11kv substation using auto grid pro. The manual is applicable for all substation projects regardless of internalexternal design delivery mode. Substation layout free download as powerpoint presentation. Nov 14, 2011 key diagram 11kv400v i the 3phase, 3wire 11 kv line is tapped and brought to the gang operating switch installed near the substation. Design study for 3311 kv substation, distribution and.
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