A cable fed substation will have a split factor somewhere between 5% and 40% depending on the cable sheaths and earthing configuration where a substation is fed via overhead line and has no metallic return path, all the earth fault current with flow through the mass of earth and the split factor will be 100%. Design criteria on substation protection by using instrument. Design parameters and standard layout of a 3311 kv substation. These power generating stations may be hydroelectric, thermal or atomic. 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. 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. Electrical design of 233kv substation line diagram. To overcome the under voltage at the 11kv, 33kv feeder buses and 2 kv buses capacitor bank of suitable ratings are added.
In the right corner of the image, we can see a sld of 11kv to 400 v. Earthing design of 11kv and 33kv rural substations in the uk. A utilitys experience in the implementation of substation. Existing and proposed single line diagram for 3311 kv. Whenever light surges occur then, a highvoltage pass through these electrical components causing damage to them either temporary or permanent damage based on the amount of voltage surge. Substation design volume ii physical layout instructor.
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. What is the criteria for selection of 33kv11kv or 66kv. From the same bus bars,outgoing line is taken which goes to the other substation. Gaurav singh dbcr type isolators are used in 3311 kv substation current transformer potential transformer references. Therefore, to avoid this difficulty, lightening arresters are. The structure of such distributive substations is usually very complex, including switchgear equipment, meters, protective and communication systems, which allows the control of the.
R47m substation upgrade for city of tshwane conco group. Technical specification construction of 3311 kv primary sub. Economical voltage rating has been categorised for different power range to be received thumb rule. Aug 1, 2011 a construction of new 3311 kv primary substation. In apcpdcl most of the substations are designed for two power transformers, two 33kv incoming sources one regular and one alternate supply and will be feeding six to eight 11kv feeders. The structure of such distributive substations is usually very complex, including switchgear equipment, meters, protective and communication systems, which allows the control of the substation under different operating conditions. Title type vehicle body layout and analysis john fenton pdf chapter 9 site selection layout. Supply in the package materials have been classified as under i. The scope of the project also included the transfer of the 11kv load from the existing 211kv substation to the new 211kv substation, as well as the complete decommissioning of the two existing 35mva transformers, including the transporting, relocating and commissioning of these. The scope of work consists of the design, manufacture, testing, assembly at. May 15, 2018 electrical substation now days the electrical power demand is increasing very rapidly. Jan 26, 2014 this is an article on technical subject pertaining to 33 11kv substations. Distribution indoor and padmount substation 1224kv switchgear.
Substation merging unit smu615 supporting the digitalization of the substation smu615 is a dedicated merging unit with a standard digital interface, making it possible to connect abb sensors and conventional instrument transformers to the iec 6185092 lebased process bus for extended interoperability of substation automation devices. The main objective of minimizing hardwired secondary cabling. For fulfilling these huge power demands the modern time requires creation of bigger and bigger power generating stations. The fence is connected to a separate grounding conductor. Electrical stations substations by purpose transformer stations switching stations converter stations compensation stations by position in es power plants transmission system switching, transformer consumption industry, distribution converters. Jul 04, 2016 the substation rating is defined as per the power handling capacity, location and purpose of substation. The impact of activation and deactivation by individual producers and consumers is. Technical specification construction of 3311 kv primary substations. An electrical substation is a combination of a number of major electrical equipments like power transformers, circuit breakers, instruments transformers, bus bars, lightning arresters, control panels, interconnecting cables, capacitor banks, battery set, and other related equipments designed as per the requirements, size, capacity and class of the substation. Single line diagram of 3311 kv jampaijala for tender purpose only.
All rus borrowers rus electric staff effective date. The power transformer, circuit breaker, busbar, insulator, lightning arrester are the main components of an electrical substation. In the right corner of the image, we can see a sld of 11kv to 400 v step down. Substation switching schemes electrical engineering portal. Extension to substation site, drainage, elevations, and setting out for.
Above pdf contains two slds of substations 220kv into 400v. A utilitys experience in the implementation of substation automation projects 63 the supplier provided a system compliant with the specification and, for the first time, all communication within a substation other than time synchronisation was provided by one physical network. Electrical substation now days the electrical power demand is increasing very rapidly. By incorporating 11kv switchgear, cast resin transformers, low voltage switchgear. 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. A wide variety of 11kv substation options are available to you, such as power. A 66 kv33kv,star delta transformer is connected to the 66kv bus bars. Switching schemes will be categorized in accordance with this categorization. Existing and proposed single line diagram for 3311 kv aska s. Design,supply,manufacturing,erection, te 211 kv substation with sas at i. This is an article on technical subject pertaining to 3311kv substations.
Pdf joiner allows you to merge multiple pdf documents and images into a single pdf file, free of charge. Pdf merge is a simple userfriendly application that allows you to merge multiple pdf documents including scanned imported documents and images into 1merge pdf files online free and easy to use. Earthing design instruction edi100 distribution earthing design, construction and test equipment technical specification ets 0070 11kv and 22kv padmount and indoor distribution transformers. Design,supply,manufacturing,erection, te sting and. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. To set out in detail the minimum requirements for 33kv to 11kv package substation used in endeavour energys 33kv transmission network and 11kv network. Single line diagram of 11kv substation substation provides the energy supply for the local area in which the line is located. Depending upon the availability of resources these stations are constructed. The substation rating is defined as per the power handling capacity, location and purpose of substation. The substation should be suitable for outdoor application, compact and easily transportable and installation. This development was driven by the following advantages in relation to island grids. Additional annunciation system for 3311kv substations.
Branch form fae 30 distribution indoor and padmount substation medium voltage 11kv and 22kv switchgear product approval and audit form. Study of 3311 kv substation and power distribution. Single line diagram of 3311 kv jampaijala for tender. This instruction shall be read in conjunction with sdi 505. The power from main bus was fed into a 20mva transformer which. Technical specification construction of 3311 kv primary. Ets 0004 11kv to 2kv single core power cables ets 0005 15mva, 25mva and 35mva power transformers ets 0014 protection and control panels ets 0068 distribution indoor and padmount substation 1224kv switchgear ets 0070 11kv and 22kv padmount and indoor distribution transformers.
Substation merging unit smu615 protection and control. Key diagram 11kv400v i the 3phase, 3wire 11 kv line is tapped and brought to the gang operating switch installed near the substation. An electrical substation is a combination of a number of major electrical equipments like power transformers, circuit breakers, instruments transformers, bus bars, lightning arresters, control panels, interconnecting cables, capacitor banks, battery set, and other related equipments designed as per the requirements, size, capacity and class of the. Electrical power substation engineering and layout. Single line diagrams of 220kv66kv11kv transmissiondg 01. You can also choose from 3 11kv substation, as well as from vacuum 11kv substation, and whether 11kv substation is three.
Study of 3311 kv substation and power distribution under. 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 3311 kv jampaijala for tender purpose. Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india. Sep 20, 2015 the project work assigned to us was to 233 kv ehv substation electrical design. Detailed investigation of substation and preparation of boq to be done by the bidder. Jul 20, 2018 pdf merge is a simple userfriendly application that allows you to merge multiple pdf documents including scanned imported documents and images into 1merge pdf files online free and easy to use. Distribution indoor and padmount substation 1224kv. Single line diagrams of 220kv66kv11kv transmissiondg. Category 1 no outage necessary within the substation for either maintenance or fault. Electrical power substation engineering and layout electrical4u. What is the criteria for selection of 33kv11kv or 66kv11kv.