66 kv switchyard pdf

In the sld, only one lightning arrestorla was shown, but the purchase or. Technical specification for design, supply, installation and. Dec 25, 2018 there are numerous instruments for metering and indication in each substation such as wattmeters, voltmeters, ammeters, power factor meters, kwh meters, voltampere meters, and kvarh meters etc. Iocl maintenance of 66 6 6 kv switchyard and sub station equipment, due date. A single line diagramsld and a purchase order of a 11. The fill for embankment ranges up to 27 feet in depth and the cut for excavation ranges up to 24 feet in depth. These instruments are installed at different places within substation for controlling and maintaining values of current and voltages. Switchyard is included in land occupancy area by powerhouse. Basic substation configurations and the components avo training. Pdf maintenance and operation of an electrical substation.

A substation is a part of an electrical generation, transmission, and distribution system. Chapter8 switchyard equipment hv bus bars, switchyard. This substation is constructed using steel lattice structures to support strain bus wires and apparatus. Electrical substation components list diagram, working. Jul 21, 2016 a 66 kv33kv,star delta transformer is connected to the 66kv bus bars. Technical specification for design, supply, installation. Executed 14 gujarat flouro chemicals limited, dahej, bharuch, gujarat supply odf materials equipments,erection,testing and commissioning of 66 kv bay at dahej 220 kv getco sub. There are four 220 kv incoming feeders for this substation coming from. The 3phase, 3wire 11 kv line is tapped and brought to the gang operating switch installed near the substation.

The control power provided for the 500 kv switchyard primary and secondary relaying protection and breaker control circuits consists of two independent 125 vdc systems. Any technicalcourseis incompletewithoutsome type of training. Specification for erection, testing and commissioning of 66. A design layout of 233 kv, 200 mw substation the substation is connected with three substations or load viz. Ge designs, manufactures, installs and services a full range of stateoftheart gasinsulated substations gis for utilities and industries worldwide. Secondary winding is connected to 33kv tubular bus bars. Maintenance of 66 6 6 kv switchyard and sub statio tender. It considered incoming power at 220 kv and the power was transferred to main bus through isolator circuit.

These rods are manufactured using optimum quality raw material, which is obtained from the reputed vendors of the market. Utilities via inplace elevation of substation structures and equipment pdf. Technical specification construction of 3311 kv primary sub. For 220 kv class enclosure it shall be single or phase wise separate metallic type. This specification is intended to cover complete design, engineering, assembling, testing at manufacturers works, substation building, complete erection, testing, commissioning and putting into successful commercial operation of 6611 kv substation. Hv substation project brief history et bihl d i 1987 f th il ti f l hv mv d established in 1987 for the realization of complex hv, mv and lv projects. 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. Substation and switchyard both are different and these two switchyard is the inter connector between generation and transmission, and same voltage is mentained in switchyard, substation is the inter connector between transmission and distribution. Feb, 2018 220kv switch yard and equipment installed in a 220kv receiving substation. Indoor voltage in kv phase to earth in mm phase to phase in mm 0. Specification for erection, testing and commissioning of.

The 220 kv gis switchgear shall be of double bus bar design having phase wise separate or threephase common single enclosure. Pdf the adoption of the substation automation sa technology for the grids and substations is been increasingly used by the different power utilities. For the purpose of standardization in india transmission lines may be classified for operating at 66 kv and above. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. In addition, 22kv systems give off less co2 emissions since energy losses during distribution are proportional to current squared, so 22kv distribution also helps reduce global warming. There is an arrangement in the substation by which the same 66 kv double circuit supply is going out i. Sung i ili stnall hydt,opo,r,er project,a0 31 provrnce 6. Appendix c table of contents substation drawings singer substation drawing no.

Circuit breakers and isolators are connected on each side of transformer. Equipment, bus bar stringing and earthing work at 66 kv khambhara sub station for proposed lilo line from anjarkhedoi line. The substation design manual is not intended to replace asset management standards, but rather. Switchyard substation upto 400kv have generally been installed in the country. Single line diagram of 6611 kv substation click to enlarge sld single line. No description of technical parameter unit data 1 nominal system voltage kv rms 33kv 2 maximum system voltage kv rms 36. 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. Pdf substation automation system for 3366 kv ss at north delhi. Drawing title 25251400 singer substation arrangement plan 25251401 singer substation sections 1 and 2 25251402 singer substation section 3 gis enclosure 25251500 singer substation grading plan 25251501 singer substation foundation plan 25251502 singer substation. This is a 220 66 kv large green field substation project based on hybrid gis technology with 3x100mva transformers.

Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india. Jalandhar transformer transformer is a static device which transform electrical. For higher unit sizes of 660 800mw, 765kv level switchyards substations are. It is fed to the hv side of the transformer 11 kv 400 v via the 11 kv c. Single line diagrams of substations 6611 kv and 110. Switchyard equipment comprises of main equipment, ancillary equipment and switchyard structures.

The contract will be for three years 36 months from the date of issue of handing over of the particular sub station. This is showing three of the five 220 kv 66 kv transformers, as well as highvoltage transformer fire barriers, each with a capacity of 150 mva. Specification for erection, testing and commissioning of 6611 kv. Switchyard pdf 44 advantage of vacuum cb used up to 66 kv. In order to fulfill the ever changing demands of our clients, we have been engaged in offering a quality range of frp telescopic earth discharge rod 66 to 2 kv. Medium voltage products technical guide the mvlv transformer substations passive users 1 2 1. Mar 16, 2019 220kv 66 kv electrical substation all explained live tour. The bids shall be prepared and furnished, accordingly.

Onsite 66kv switchyard installation service in gujrat, rs. Switchyard and transmission line sung vui powerhouse will be connected to 35 kv distlibution line from its switchyard to ngoi xan 1 hydropower plant, runs along operational road in some 1. A 66 kv 33kv,star delta transformer is connected to the 66kv bus bars. The primary and secondary relaying systems of the 500 kv switchyard for ccnpp unit 3 are connected to separate trip circuits in each 500 kv circuit breaker. Separation of contacts causes the release of metal. While selecting the transformers for a substation it will be desirable to provide at least one standby transformer, so that a certain amount of redundancy is built in the system. Isolators for 12 kv and 36 kv normal system voltage conform to is.

The 66kv air insulated double bus outdoor substation shall have following bays with necessary equipment and civil work. Practical training report on 2206611 kv substation eep. Varun bevarages ltd 6633 kv 10mva substation hvpnl side at nuh, haryana. What is the difference between a substation and a switchyard. Erection of 2 nos 66 kv feeder bay structure tender for the work of. File type pdf 66 kv substation drawing graphical structure 66 kv substation drawing graphical structure if you ally craving such a referred 66 kv substation drawing graphical structure ebook that will pay for you worth, get the no question best seller from us currently from several preferred authors. Overhead busbar design for 220 66 kv gis substation prakruti shah1 and hetal desai2 1,2assistant professor, electrical engg department, navrachana university abstract the paper is assigned to design a 220 66 kv hv gis substation. A single line diagramsld and a purchase order of a 1166kv switchyard of a power plant was given. A 50 hz electrical substation in melbourne, australia. Mec infra projects offering onsite 66kv switchyard installation service in gujrat at rs 350000set in ahmedabad, gujarat. In case of large hydro stations the step up voltage may be up to 420 kv.