Key diagram 11kv400v i the 3phase, 3wire 11 kv line is tapped and brought to the gang operating switch installed near the substation. Design guide for rural substations usda rural development. For fulfilling these huge power demands the modern time requires creation of bigger and bigger power generating stations. Detailed investigation of substation and preparation of boq to be done. Depending upon the availability of resources these stations are constructed.
Owners supply materials osm 33 11 kv power transformers, station 330. 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. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978. Note that you will have to click on show all to access the additionl rating lines. 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. Small rural 11kv and 33kv substations can often be problematic to earth safely. Stability of the system, reliability of power depends on the type of layout chosen and components used in the sub stations. Key diagram 11kv400v indoor substation iiteeeestudents.
The second symbol is almost a match for the symbol show in the pdf. Design,supply,manufacturing,erection, te 211 kv substation with sas at i. The aim of this project is to provide the consultancy service to doctor harisingh gour vishwavidyalaya, sagar mp for substation design, feeder up to 11 kv and estimation of cost. Technical specification construction of 33 11 kv primary sub stations. This site is served by a combination of allweather, gravel and unimproved dirt roads. The skid mounted substation shall be of modular construction housed in a single enclosure consisting of ht control panel with two number load break switch, one number vcb and all other metering and protection, one no 11kv415v dry type transformer and lt distribution board etc. Design study for 3311 kv substation, distribution and. Once at site the substation shall be suitable to be lifted by a crane off the truck and placed on. The substation equipments such as conductors, transformers, etc. They are coloured red, amber or green depending on whether any of the following have been identified as affecting further generation connections.
Electrical power substation engineering and layout. All the control and equipments needed to monitor and remote control the vital equipments such as transformers, circuit breakers, feeders etc. Electrical substation now days the electrical power demand is increasing very rapidly. Powerdistributionandsubstationprojects reference list sl no. 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. Kenya power transmission system improvement project lot 3233 kv substations and switching stations volume 2 section vi employers requirements. Introduction sub stations are important link between generating stations and distribution networks. There are 3 lines availble for descriptions and 2 lines for the rating. All rus borrowers rus electric staff effective date. The package substations are made available in a range of sizes between 200kva 3mva and voltages up to 33kv. Electrical substation, unitised package substation.
Kec is the leading manufacturer of switchgear, unitised package substation, electrical substation manufacturers in 3 type 11kv, 22kv and 33kv. 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 substation would be a combination of switching, controlling, and voltage stepdown equipment arranged to reduce subtransmission voltage to primary distribution voltage for residential, commercial, and industrial loads. The factory assembled self contained package substation is a complete weather proof. Single line diagram of 3311 kv jampaijala for tender purpose only. They step down the ehv to hv as per the requirement of the customers.
Ergon energy corporation limited abn 50 087 646 062 ergon energy queensland pty ltd abn 11 121 177 802. Replace previous bulletin 651 with this bulletin and file with 7 cfr part 1724. Detailed investigation of substation and preparation of boq to be done by the bidder. Generation capacity connected reverse power flow 33kv fault level percentage of 11kv circuits. Design study for 3311 kv substation, distribution and protection in. As for the building layout, no acade wont do that automatically. For presentation of design drawings and circuit documents iec publication. Aug 1, 2011 a construction of new 33 11 kv primary substation. The seminole 8kv substation is located on the west side of i45 in league city, texas. These electrical layout plan and elevation 33kv substation are an important part that needs to be taken care of in every small and large project. Distribution substations are typically the points of voltage regulation. What is the rating of ht substation and lt substation.
Construction of 33 11kv substation technical specification page 1 of 211 rev. This has brought the possibility of configuring substations in which heavy physical labor is. Substation design volume ii physical layout instructor. Supply in the package materials have been classified as under i. The incoming voltage level for this substation is 220kv. The single line diagram makes the system easy and it provides the facilitates reading of the electrical supply and connection. The power transformer, circuit breakers, gantry of an under construction 33 11 kv substation in rural area.
This map shows 3311kv primary substations and a geographical footprint of the areas they feed. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Edms, printed to an electronic drawing set adobe pdf and issued to the project manager. Placement of switchyard control room placement fire fighting pump house. A substation is a part of an electrical generation, transmission, and distribution system. Earthing design instruction edi100 distribution earthing design, construction and test equipment technical specification ets 0070 11kv and 22kv padmount and indoor distribution transformers.
In phasei, a study of existing network and availability of space for the substation and lines up to 11 kv of the campus is to be carried out. Single line diagram of 3311 kv jampaijala for tender. Distribution indoor and padmount substation 1224kv. Feb2016 rev2 in case of 211kv substation away from the road rightof way row, the party shall provide sufficient corridor from the substation boundary to the road. Sub station equipments and safety clearance rating of lighting arrestor. The analysis is done by using advance software electrical transient analyser program etap with detailed load flow analysis. Prepared by the subcommittee on the design of substation structures of the. 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.
Design,supply,manufacturing,erection, te sting and. Design parameters and standard layout of a 3311 kv substation. Digital substation and iec61850 tomorrow iec 6185081 670 series reb500 650 series sam600 ncit ncit sam600 iec 6185081 iec 6185092 digital substation 1 all signals digital, station and process 2 analog, status and commands 3 acquire once, distribute on a. The fence is connected to a separate grounding conductor. This research paper deals with the simulation of 23311kv substation. Via inplace elevation of substation structures and equipment pdf. Therefore, to avoid this difficulty, lightening arresters are. A wide variety of complete package substations are manufactured and made available by otds. These electrical layout plan and elevation 33kv substation helps you to understand the layout of your space and gives you a clear image of the placement of various items. Power supply guidelines for major projects 7 of 19 issue.
Ehv combined voltage and current transformer standard. Design,supply,manufacturing,erection, te 2 11 kv substation with sas at i. The new substation t he electricity grid was invented in the 19th century and greatly expanded in the 20th. These power generating stations may be hydroelectric, thermal or atomic. Design study for 33 11 kv substation, distribution and protection in the city of kenya. Technical specification construction of 3311 kv primary substations. 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. General arrangement a designer perspective, but fine tuned at site. The substation and its components shall be mounted on a galvanised steel plinth. Technical specification construction of 3311 kv primary. 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 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. The digital substation comprise of intelligent primary devices and networking secondary device based on iec61850 protocol to realize.
Branch form fae 30 distribution indoor and padmount substation medium voltage 11kv and 22kv switchgear product approval and audit form. This paper discusses about installation of 11kv440v substation. 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. The first step in planning a substation layout is the preparation of a oneline. Between the generating station and consumer, electric power may flow through several substations at different voltage levels. Earthing design of 11kv and 33kv rural substations in the uk.
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