Scribd is the worlds largest social reading and publishing site. Ncert books pdf download 2020 for class 12, 11, 10, 9, 8. The first step towards the design of a 400 2202 kv substation is to determine the load that the substation has to cater and develop it accordingly. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area. Substation line up to 400 kv 165 annexure a typical list of hotline tools required for maintenance of line upto 220 kv by hotstick method 167 annexure b typical list of hotline tools required for maintenance of 400 kv line 169 chapter 7 insulator washingcleaning 7. The substation is responsible for catering bulk power to various load centres distributed all around through 220 kv and 2 kv substations. The foundations were constructed over piles as site is located close to river bed. Pgcil, new delhi 400220 kv gis substation with central. Let us for illustration consider a single phase core type 400 kv 33 kv transformer. Attachment 3k sub qualifying requirements for the 400. Download as pdf, 400 200 kv substation 400 200 kv substation design scribd 400 200 kv substation design free download as pdf file graph of sp. Evaluating exposure from electric fields in a high voltage. Basic of 400kv substation design scribd basic of 400kv substation design.
Drawing title 25251 400 singer substation arrangement plan 25251401 singer substation sections 1 and 2. Maintenance free gas insulated switchgear substation automation system with iec 61850 compliance. Training report on 400 2202 kv switchyard in india design and engineering. The aim of this paper is to study electric fields at a 400 kv substation to find out whether they exceed occupational exposure guidelines, 10 kv m, by international commission on nonionizing radiation protection icnirp. The subtransmission is at medium high voltage such as 33 kv, 11 kv ac. The 400 kv switchyard of the substation had two power transformer feeders and four outgoing transmission line feeders. Electrical clearance in substation electrical notes. The substation is responsible for catering bulk power to various load centres distributed all around through 220 kv and 2 kv. Transients due to switching of 400 k v shunt reactor. The scope also covers provision of additional bays without equipments over. Substation layout electrical substation electricity. Pdf industrial training report on 400220kv substation.
Placement of switchyard control room placement fire fighting pump house. An assessment according to directive 2035eu of exposure in a 400 kv switchyard has been performed. Hundreds of standards including cable testing standards need for cable testing has existed the 1800s guided ieee 400 series bundle standards ieee cable testing standards. Extension of 400 220 kv substation at gooty this is an existing substation owned by powergrid and shall have provision to accommodate following under this project. Studies national electric energy testing research and.
By this we get to know about the operation of different equipments in switch yard and its maintainance. Also the hard copies as per specification shall be submitted. Technical specification construction of 3311 kv primary. Switch yard 400 kv, bay02 location equipment date cursor1 cursor2 diff.
Ncert books pdf free download for class 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, and 1 april 14, 2020 by kishen 16 comments there are many books in the market but. Upptcl is first state utility to enter into 765 kv arena. The input for a distribution substation is typically at least two transmission or subtransmission lines. Technical specification construction of 3311 kv primary substations. Part of the body was exposed to electric field strength above the high action level. Appendix c table of contents substation drawings singer substation drawing no. The availability willis 2000 can be defined as the fraction of time that the electric power is available in a certain point in the network during a given time interval. Power frequency electric fields at a 400 kv substation.
Chapter 7 400 kv substation free download pdf ebook. Owners supply materials osm 3311 kv power transformers, station 330. Distribution substations michigan technological university. The scope of the project includes design, engineering. We therefore performed simulations of the electric fields induced in the body to assess these accoding to the exposure limit values elvs. Supply in the package materials have been classified as under i. A 765 400 kv substation is the highest grade system voltage for transmission in india. Distribution voltages are typically medium voltage, between 2. The dependency of secure power is increasing in the society which leads to higher demands on the availability of electric power. The switchyard is located approximately 850 feet southwest of the right abutment of the dam, and approximately 170 feet higher than the top of the dam. Pdf transients due to switching of 400 kv shunt reactor. The fill for embankment ranges up to 27 feet in depth and the cut for excavation ranges up to 24 feet in depth. The choice of incoming and outgoing voltages of substations is decided by the rated.
Lightening arrestors capacitive voltage transformer 400 kv switchyard ntpc safe guards the equipment by discharging the high currents due to lightning and to discharge the high voltage surges in the power system due to lightning to the ground. 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. The substation or switchyard can be conventional air insulated substation ais of gas insulated substation gis or a hybrid substation. Pdf evaluating exposure from electric fields in a high. E gulf incon doha, qatar joba trading abu dhabi commercial corporation, u. Transmission, including integration of renewable engery sources invitation for suggestions and comments.
General arrangement a designer perspective, but fine tuned at site. Substations design of substations to be based on the following xii. The 400 kv to 33 kv transformer would be impractical because of the following reason. Both the switchyards have a two bus architecture, and the functionality are more or less identical, so the focus of this paper will be only on the sas for 400 kv. Electrical works 400 kv substation chapter7 400 kv substation 1.