66 kv switchyard pdf

The substation design manual is not intended to replace asset management standards, but rather. Circuit breakers and isolators are connected on each side of transformer. Chapter8 switchyard equipment hv bus bars, switchyard. 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. Jul 21, 2016 a 66 kv33kv,star delta transformer is connected to the 66kv bus bars.

A 66 kv 33kv,star delta transformer is connected to the 66kv bus bars. 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. Utilities via inplace elevation of substation structures and equipment pdf. Practical training report on 2206611 kv substation eep. A single line diagramsld and a purchase order of a 11. Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india. A single line diagramsld and a purchase order of a 1166kv switchyard of a power plant was given. The 3phase, 3wire 11 kv line is tapped and brought to the gang operating switch installed near the substation. Development of 22kv distribution systems and switchgear. Electrical substation components list diagram, working. The fill for embankment ranges up to 27 feet in depth and the cut for excavation ranges up to 24 feet in depth.

Sung i ili stnall hydt,opo,r,er project,a0 31 provrnce 6. The contract will be for three years 36 months from the date of issue of handing over of the particular sub station. Technical specification for design, supply, installation and. The portfolio includes gis solutions from 60 to 800 kv, along with hybrid, mobile and digital gis solutions, gasinsulated lines and other secondary products to maximize switchgear and network. 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. Onsite 66kv switchyard installation service in gujrat, rs. Appendix c table of contents substation drawings singer substation drawing no. These rods are manufactured using optimum quality raw material, which is obtained from the reputed vendors of the market. For higher unit sizes of 660 800mw, 765kv level switchyards substations are. For 220 kv class enclosure it shall be single or phase wise separate metallic type. Technical specification for design, supply, installation. This is showing three of the five 220 kv66 kv transformers, as well as. Single line diagram of 6611 kv substation click to enlarge sld single line.

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. Feb, 2018 220kv switch yard and equipment installed in a 220kv receiving substation. 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. Ge designs, manufactures, installs and services a full range of stateoftheart gasinsulated substations gis for utilities and industries worldwide. The 66kv air insulated double bus outdoor substation shall have following bays with necessary equipment and civil work. Pdf substation automation system for 3366 kv ss at north delhi. 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. This substation is constructed using steel lattice structures to support strain bus wires and apparatus.

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. 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 66 11 kv substation. Any technicalcourseis incompletewithoutsome type of training. Specification for erection, testing and commissioning of 66. The outgoing 66 kv double circuit line can be made to act as incoming line. A 50 hz electrical substation in melbourne, australia.

Mar 16, 2019 220kv 66 kv electrical substation all explained live tour. The 220 kv gis switchgear shall be of double bus bar design having phase wise separate or threephase common single enclosure. Jalandhar transformer transformer is a static device which transform electrical. Technical specification construction of 3311 kv primary sub. It considered incoming power at 220 kv and the power was transferred to main bus through isolator circuit. In those design where bus bar is continuous, provision is to be made available. 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. A substation is a part of an electrical generation, transmission, and distribution system. Specification for erection, testing and commissioning of 6611 kv. Switchyard substation upto 400kv have generally been installed in the country. 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 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. Single line diagrams of substations 6611 kv and 110.

Isolators for 12 kv and 36 kv normal system voltage conform to is. Basic substation configurations and the components avo training. Equipment, bus bar stringing and earthing work at 66 kv khambhara sub station for proposed lilo line from anjarkhedoi line. Varun bevarages ltd 6633 kv 10mva substation hvpnl side at nuh, haryana. There are four 220 kv incoming feeders for this substation coming from. The project was successfully executed on time despite short execution schedule. Switchyard is included in land occupancy area by powerhouse. There is also an arrangement to step down the incoming 66 kv supply to 11 kv by two units of 3phase.

Pdf maintenance and operation of an electrical substation. In the sld, only one lightning arrestorla was shown, but the purchase or. 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. These instruments are installed at different places within substation for controlling and maintaining values of current and voltages. The bids shall be prepared and furnished, accordingly. Single line diagram of 66 11 kv substation click to enlarge sld single line. Getco, the state transmission company of gujarat is the customer. 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. Maintenance of 66 6 6 kv switchyard and sub statio tender.

This is a 220 66 kv large green field substation project based on hybrid gis technology with 3x100mva transformers. In case of large hydro stations the step up voltage may be up to 420 kv. 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. Switched in during heavy loads, switched off during low loads. What is the difference between a substation and a switchyard. Separation of contacts causes the release of metal. Switchyard pdf 44 advantage of vacuum cb used up to 66 kv.

Secondary winding is connected to 33kv tubular bus bars. Power evacuation, main single line diagram, grid interconnection and switchyard layout up to 245 kv 9. Erection of 2 nos 66 kv feeder bay structure equipment. Indoor voltage in kv phase to earth in mm phase to phase in mm 0.

No description of technical parameter unit data 1 nominal system voltage kv rms 33kv 2 maximum system voltage kv rms 36. Specification for erection, testing and commissioning of. 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. There is an arrangement in the substation by which the same 66 kv double circuit supply is going out i. A design layout of 233 kv, 200 mw substation the substation is connected with three substations or load viz. 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. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. 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. 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. It is fed to the hv side of the transformer 11 kv 400 v via the 11 kv c.