Nonsecurity item tender document for construction of 233kv substation on turnkey basis for supply, transportation, erection, commissioning and civil work tender no 1435233 kv vol. Uttar pradesh power corporation ltd, dohna 220233 kv substation substation for transmitting power up to 280mw for urban and rural areas of bareilly district customer benefits power transmission from 400kv bareilly substation to 220kv dohna substation improved efficiency due to reduced line losses of approx. Section 3 is the simulation of single line diagram of 220 kv substation in etap based upon practical data. Earthing design of 11kv and 33kv rural substations in the uk. Key diagram 11kv400v indoor substation iiteeeestudents. The reason for 400kv being step down gradually through 2kv, 66kv and then to 33kv is because direct stepping down would mean a huge transformer at the reciever end. Annual maintenance of various 2 kv substation sa tender. Tender document for construction of 233kv substation on turnkey basis for supply, transportation, erection, commissioning and civil work tender no 1435233 kv vol. May 15, 2018 electrical substation now days the electrical power demand is increasing very rapidly. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. The power from main bus was fed into a 20mva transformer which. Depending upon the availability of resources these stations are constructed. Much of the substation cost savings would be lost if the supply cables were laid in separate trenches since the civil trench work, laying and reinstatement costs are typically between 33% and 40% of the total supply and erection contract costs for 2 kv oil filled and 33 kv xlpe, respectively.
We considered incoming power at 2 kv and the power was transferred to main bus through isolatorcircuit breakerisolator combination. When if the gas gets decreases there is a motor connected to the circuit breaker. 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 in transmission substations 400kv is not directly. We considered incoming power at 2 kv and the power was transferred to main bus through. As2067 substations and high voltage installations exceeding 1 kv ac. 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 motor starts operating if the gas went lower than 20. Etap software, load flow, short circuit, 2 kv substations. These power generating stations may be hydroelectric, thermal or atomic. The gas is put inside the circuit breaker by force i. This paper presents the design of earthing system for 2 kv substations and simulation for calculation of required parameters. Distance from ground level of oltc manual crank axis.
Electrical power substation engineering and layout electrical4u. Electrical substation equipment for transferring of electrical power from generating unit to distributing units various types of electrical equipment are required. 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. Design,supply,manufacturing,erection, te 211 kv substation with sas at i. Design parameters and standard layout of a 3311 kv substation. Single line diagram of 3311 kv jampaijala for tender. The project work assigned to us was to design a 233 kv ehv substation. Figure 1 existing substation with 220 kv breaker and a half and 110 kv double bus. Single line diagram of 11kv substation substation provides the energy supply for the local area in which the line is located. Load flow analysis of 2 kv substation using etap software. This paper is to provide information pertinent to safe earthing practices in ac substation design and to establish the safe limits of potential difference under normal and fault conditions.
Maintenance and operation of an electrical substation of 220233 kv. Pdf reliability evaluation of a 233 kv hv substation. The rec standard mentions that an outdoor type 3311 kv substation should have 2 power transformers and 3 outgoing feeders. The substation layout including the major equipment is as shown on drawing no. In order to investigate the failure of 220 kv and above substation equipment and recommend measures to avert recurrence, a standing committee under section 73, clause1 of the electricity act, 2003, comprising experts in the field of design and. Electrical power system is back bone of the development of a nation. Distribution voltages are typically medium voltage, between 2. About 2kv vaishali substation 2kv vaishali substation is one important substation of upptcl. The use of sf6 circuit breaker is mainly in the substations which are having high input kv input, say above 220kv and more. Stage 3 detailed design report rev d tracked changed.
Providing protective coating on 2 kv and 33 kv m tender. The first step in planning a substation layout is the preparation of a oneline. Autocad format and manuals in pdf format, for offered item shall be submitted. The project saw abb replace a substation with brand new stateoftheart gas insulated switchgear gis technology. Installation of 11kv440v distribution substation ajinkya lonare1, pravin 2bodadkar, 4shuchiket darunde3, dr. The project work assigned to us was to design a 2 33 kv ehv substation. Single line diagram of 233 kv grid sub station bettiah 2 kv transfer bus 2 kv main bus 33 kv main bus 20 mva abb make tr. Figure 12 eirgrids project development and consultation roadmap. Mediumvoltage shielded power cable 2 kv up to 35 kv. Section 4 is the load flow analysis of the substation. Early electrical substations required manual switching or adjustment of. The number of 33 kv incoming feeder may be one or two depending upon the requirement. Now a 400kv transmission line tower could be more or less something like this.
Sectional view of the feeders table 5 shows the load flow results and by comparing it with table 2 it can be clearly seen that there is an improvement in the power factor. Technical specification construction of 3311 kv primary. Uppcl, dohna, uttar pradesh, india220 2 33kv substation english pdf reference case study wbseb, bishnupur, west bengal, india 220 2 33 kv substation english pdf reference case study abb solutions for ebuses highlights worlwide english pdf leaflet. Simulated diagram of 2 kv substation using etap fig. A cable fed substation will have a split factor somewhere between 5% and 40% depending on the cable sheaths and earthing configuration where a substation is fed via overhead line and has no metallic return path, all the earth fault current with flow through the mass of earth and the split factor will be 100%. Kenya power transmission system improvement project lot 3233 kv substations and switching stations volume 2 section vi employers requirements. Chapter1 bus post insulators chapter2 220v and 48v vrla dc battery chapter3 220v dc battery charger. The 233kv substation is composed of double open type 2kv bus bars four. Sep 20, 2015 the project work assigned to us was to 2 33 kv ehv substation electrical design.
The equipment like bus bars, isolator, power transformer etc. No description of technical parameter unit data 1 nominal system voltage kv rms 33kv 2 maximum system voltage kv rms 36. D substation standards lighting fixture pole and bracket mounting. This job is again accomplished by suitable apparatus called substation. An electrical substation is a subsidiary station of a transmission and distribution system where voltage is transformed from high to low using transformers. Perunad substation inaugurated by minister aryadan muhammed. A cable fed substation will have a split factor somewhere between 5% and 40% depending on the cable sheaths and earthing configuration where a substation is fed via overhead line and has no metallic return path, all the earth fault current with flow through the.
The need in march 20, abb put the final finishing touches to a major turnkey project to create northern powergrids replacement 2 kilovolt kv substation at creyke beck in yorkshires east riding. There must be provision for 2 additional 11 kv outgoing feeder for load enhancements in future. The transformer steps down the voltage to 400 v, 3phase, 4wire. This document outlines the primary design standard for transgrid substations. Design,supply,manufacturing,erection, te sting and. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Oct 07, 2014 the rec standard mentions that an outdoor type 3311 kv substation should have 2 power transformers and 3 outgoing feeders. The system parameters for 765kv, 400kv, 220kv, 2kv and 33kv are given. There are two main 2 kv bus incoming for the substation.
Pdf model study of lightning protection of 110 kv substation. For fulfilling these huge power demands the modern time requires creation of bigger and bigger power generating stations. Electrical power substation engineering and layout. Upptcl providing protective coating on 2 kv and 33 kv metal joints to avoid frequent break down due to hot spot and flashing at va, due date. Sep 01, 2014 2 kv substation, purukul, dehradun the 2 kv substation was commissioned in the year 27th march, 1983. A substation is a part of an electrical generation, transmission, and distribution system. The design of underground ss requires more careful consideration. Design of a current transformer depends on the frequency of excitation. Nominal system voltage kv highest system voltage kv phase and earth mm between phases mm safety clearance mm ground clearance mm 11 12. Sep 20, 2015 the project work assigned to us was to 233 kv ehv substation electrical design. From the etap generated load flow details and the short circuit details are studied. Uttar pradesh power corporation ltd, dohna state transmission. Adequate lighting must be provided throughout the substation to facilitate the manual operation.
Ctr 15050 11 a single line diagram of 3311 kv jampaijala for tender purpose only. Upptcl annual maintenance of various 2 kv substation sarsol aligarh iii iglas under etd i aligarh, due date. Agrawal 1,2,3be student123, department of electrical engineering 4proffessor4, department of electrical engineering kdk college of engineering, nagpur, maharashtra, india abstract transmission. In case of breakdown of electrical system, manual operation is.
The substation is fed 16 mw power from 3 generating stations a,b,c through 400 kv single circuit lines working at around 87% loading the power is received on 400 kv busbar double main and transfer bus scheme. Established in 2012, the agency comes under the authority of the department of power. Aug 26, 2014 about 2kv vaishali substation 2kv vaishali substation is one important substation of upptcl. Abbs largest indoor 2 kv substation spanning the full product ownership life cycle, abbs experienced multidisciplinary team of engineers and technicians is qualified and accredited to work on trackside installation, commissioning and maintenance projects. Scope of supply and services of basic equipment this section details out the scope of supply and services for 110 kv substation bay extension with associated auxiliaries as indicated. Project details salient features and project involvement 2008 2010. It details an evaluation of the different locations within the identified preferred substation site, site d, to determine the optimum specific location within the site in which to locate the new 220110 kv substation. Pdf the reliability study requires voluminous data base for statistical prediction of accurate. Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india. Sep 16, 2012 the use of sf6 circuit breaker is mainly in the substations which are having high input kv input, say above 220kv and more.
This paper is to provide information pertinent to safe earthing practices in ac substation design and to establish the safe limits of potential difference under normal and. Also the hard copies as per specification shall be submitted. Technical specification construction of 3311 kv primary sub. Electric power may flow through several substations between generating plant and consumer, and may be changed in voltage in several steps.
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