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. Design study for 3311 kv substation, distribution and protection in. Distribution line design overhead these standards created and made available are for the construction of ergon energy infrastructure. Existing and proposed single line diagram for 3311 kv. Substation earthing equipment 11kv 33kv high voltage.
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. Stability of the system, reliability of power depends on the type of layout chosen and components used in the sub stations. May 15, 2018 electrical substation now days the electrical power demand is increasing very rapidly. Boq for construction of 1x5 mva 3311 kv substation at. Owners supply materials osm 3311 kv power transformers, station 330. We considered incoming power at 2 kv and the power was transferred to main bus through. Introduction sub stations are important link between generating stations and distribution networks. 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. 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. Abb mobile substation wins international design award. Design of distribution substation distribution substation consists of. Rengali 233 kv grid to the proposed 3311 kv substation at budhapal. The main function of the substation is to collect the energy transmitted at high. At substation, two outdoor switchyard bays exclusive for this plant shall be constructed with necessary equipment to facilitate 66kv transmission.
The top countries of suppliers are india, china, and india, from which the percentage of package substation 33kv supply is 1%, 97%, and 1% respectively. Boq for construction of 1x5 mva 3311 kv substation at medical. Guidelines for substation and power distribution systems. Jun 20, 2018 single line diagram33kv11kv substation this is the easy way to understand the working of substation. We considered incoming power at 2 kv and the power was transferred to main bus through isolatorcircuit breakerisolator combination.
A mini project report on operation and maintenance of 2202kv substation submitted in. Single line diagram of 3311 kv jampaijala for tender purpose only. 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 33 11kv ss equipment including civil works. Earthing design of 11kv and 33kv rural substations in the uk. 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. The substation rating is defined as per the power handling capacity, location and purpose of substation. We considered incoming power at 2 kv and the power was transferred to main bus through isolator. Construction of 3311kv substations undp procurement notices. Technical specification construction of 3311 kv primary. Design study for 3311 kv substation, distribution and protection in the city of kenya 10 comments. Agrawal 1,2,3be student123, department of electrical engineering 4proffessor4, department of electrical engineering kdk college of engineering, nagpur, maharashtra, india abstract transmission. Standard for distribution line design overhead these standards created and made available are for the construction of ergon energy infrastructure. It shall not be used for the design of substations.
The neutral earthing resistors on the 11kv and 33kv limit fault levels so secondary substations will not be classed as hot. Rengali 2 33 kv grid to the proposed 33 11 kv substation at budhapal. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area. An assembly of high voltage switchgear up to 33kv together with associated control and ancillary equipment where the lowest voltage is 400230v and which may also include one or more 33 11kv. From the same bus bars,outgoing line is taken which goes to the other substation. 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.
For a phasetophase voltage between 35 kv and 230 kv. The project work assigned to us was to design a 233 kv ehv substation. Lv cable fig shows the single line diagram of 11kv 440v substation. A 66 kv33kv,star delta transformer is connected to the 66kv bus bars. Technical specification for design, supply, installation. Sub03026 general specification for the civil engineering and building design and construction of 2kv grid substations sub03029 substation lvac installation wiring specification for new and refurbished substation sites sub03034 general specification for the civil engineering and building design and. No 1 general design criteria 1 2 civil work 3 33kv gis 42 4 11kv autoswitched capacitor bank 72 5 structural work 84 6 outdoor switchyard material 91 7 battery chargers 103 8 ni cd battery bank 110. For fulfilling these huge power demands the modern time requires creation of bigger and bigger power generating stations. The tenderer is allowed to visit and examine the existing 33 11kv substations. To step down the 33kv primary voltage to 11kv suitable for distribution purpose. Installation of 11kv440v distribution substation ajinkya lonare1, pravin 2bodadkar, 4shuchiket darunde3, dr.
The ergon energy design philosophy is to provide substations. Design and construction specifications of the substation 4 2. 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. Why electric power transmission is multiple of 11 i. Pictured above is a diagram showing the typical layout of a high voltage grp electricity substation distributing 11kv power an outer ring of 70sqmm copper earthing conductor plus 4 earth rods of standard depth are shown with a 10 metre tail in the hv cable trench accompanied by a layout for the concrete rebar. These power generating stations may be hydroelectric, thermal or atomic. Tender document for construction of 233kv substation on turnkey basis for supply, transportation, erection, commissioning and civil work tender no. Problem 5 draw the single line diagram of a 3311kv substation having the following. Technical specification for 3311kv itpo grid substation in new delhi index s. Responsibilities the group manager works enablement is the process owner responsible for approving this reference. The input for a distribution substation is typically at least two transmission or subtransmission lines. 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.
Design of earth grid for a 3311kv gis substation at a. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 33 11 kv. Power supply for erection testing and commissioning. 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. There are 155 suppliers who sells package substation 33kv on, mainly located in asia. Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india. Substation layout electrical substation electricity. Depending upon the availability of resources these stations are constructed.
With your download, get the 23 best papers relevant to this one, including 17 top related papers. 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. Single line diagram 33kv11kv substation in hindi youtube. The fence is connected to a separate grounding conductor.
Some designs achieve minimum emf emission by installing the low voltage cables and switchboard in a trench down the middle of the room. It is a usual practice by many electrical utilities to prepare oneline diagrams with. First of all, it is not true that all the transmissions and distribution voltages are multiple of 11. Economical voltage rating has been categorised for different power range to be received thumb. The main equipment in fahari substation consist of. This training introduces trainees to the foundation of substation at all levels of the power grid, with an introduction to typical substation. Chapter 7 33 kv switching substation, savar of dpbs1 7. Mark dunk primary substation design uk power networks. Single line diagram of 3311 kv jampaijala for tender purpose. Economical voltage rating has been categorised for different power range to be received thumb rule. Pole mounted substation is the outdoor type cheapest form of substation for voltages not exceeding 33kv in which the equipments are installed overhead on hpole or 4pole structure and electric power is almost distributed in localities through such substation. The project work assigned to us was to design a 2 33 kv ehv substation. Nonsecurity item tender document for construction of 2 33kv substation on turnkey basis for supply, transportation, erection, commissioning and civil work tender no. The key diagram of this substation can be explained as under.
A design layout of 233 kv, 200 mw substation the substation is connected with three substations or load viz. Route map for 33 kv distribution line western urban. A wide variety of package substation 33kv options are available to you, such as autotransformer. The transformer is the heart of the electrical system. If normal dno practice is followed the design will be ok. Whilst standardisation of civil design aspects is preferable, it is accepted that each project is specific. Technical specification for 33 11kv itpo grid substation in new delhi index s. Distribution voltages are typically medium voltage, between 2.
Soil resistivity values can be assumed or dont matter. Design parameters and standard layout of a 3311 kv substation. The 3phase, 3wire 11 kv line is tapped and brought to the gang operating switch installed near the substation. The neutral earthing resistors on the 11kv and 33kv limit fault levels so secondary substations. What is the criteria for selection of 33kv11kv or 66kv. Details of substations under transmission wing as on 30.
No 1 general design criteria 1 2 civil work 3 33kv gis 42 4 11kv autoswitched capacitor bank 72 5. A mini project report on operation and maintenance of 2202kv substation submitted in partial fulfillment for the award of the degree of bachelor of technology in electrical and electronics engineering submitted by v. Technical specification construction of 3311 kv primary sub. Pdf maintenance and operation of an electrical substation.
Hence great care has to be taken to select the layout and. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. Vapi, gujarat, india400220kv substation english pdf reference case study uppcl, dohna, uttar pradesh, india2202 33kv substation english pdf reference case study wbseb, bishnupur, west bengal, india 2202 33 kv substation. Single line diagram of 11kv substation substation provides the energy supply for the local area in which the line is located. Supply in the package materials have been classified as under i. What is the criteria for selection of 33kv11kv or 66kv11kv. Distance between spv plant and substation is 3000m 3700m approximately.
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