A current transformer is connected in series with line which measure current and step down current at ratio 800. Part c1 construction of five 233 11 kv substations in desco area january june 2018 prepared by dhaka electric supply company ltddesco for peoples republic of bangladesh. This job is again accomplished by suitable apparatus called substation. The substation design manual is not intended to replace asset management standards, but rather to act as a. The fourth level range the lets in 362 kv and 420 kv voltages with the same gis type.
Design study for 3311 kv substation, distribution and protection in. Watching future scope, here i would like to replace the 11 m stp pole by m stp pole because in present scenario, many new lines are being constructed either of 33 kv or 11 kv line. Technical specification construction of 3311 kv primary sub. Con edison the longrange transmission plan, 2018 2028 october 26, 2018 3 projects reaching commercial operation would make planning the future system topology a challenging and evolving. 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. East walton 500230 kv substation to the proposed jacks creek 230 kv switching station, and from the proposed east walton 500230kv substation to the proposed bethabara 230115 kv substation. Power system structure the typical power system structure is shown in fig. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations. Substation work, equipments data, operational manual, etc for the owners. Project justification report molonglo valley 11 kv feeders project justfication report molonglo valley 11 kv feeders rev 0. The requirements in the design and other factors to be considered before the design as well as the beme for the design are thoroughly.
Now customize the name of a clipboard to store your clips. Executive summary a new zone substation is proposed to be constructed to supply the growing demand of the molonglo valley. Design parameters and standard layout of a 3311 kv substation. This will be applicable to the effectively earthed 11 kv. To better understand the importance of electrical substations, lets start with a discussion about the structure of the power systems and their main components. The triton substation project, as proposed by sce, would be located in temecula, in riverside county, california.
The station may consist of transformers, switches, circuit breakers and other auxilliary equipment. While erecting pole for the line of 11 kv and 33 kv line, we use 11m stp pole for 11 kv and m stp pole for 33 kv. Training report of 3311kv substation mohamdabad, tundla. The rated voltage of lightning arresters shall be 9 kv rms. Mobile substation as name implies, this is a substation on wheels a mobile substation is a completely selfcontained trailer mounted unit comprised of transformer, cooling equipment, high and. It includes construction of a new 56 megavolt ampere mva 11512 kilovolt kv unattended substation triton substation that would serve the cities of temecula, murrieta, and unincorporated southwestern riverside county. Technical specification construction of 3311 kv primary. Union minister for electric ity and energy u win khaing attended the opening ceremony, and made a speech on power distribution in the region. Pdf personnel safety cum consistency is the important consideration in the functioning of the power systems. Your computer may not have enough memory to open the image, or the image may have been corrupted.
Civil works are required for a new substation bench to provide new 500 kv busbars, two new 500 kv switchbays for line terminations, three new 500330 kv transformers and the associated 500 kv. A design layout of 233 kv, 200 mw substation the substation is connected with three substations or load viz. The substation scope includes one 2 11 kv 45 mva threephase transformer with provision for. Substation substation a station in the power transmission system at which electric power is transformed to a conveniently used form. Single line diagram of 11kv substation substation provides the energy supply for the local area in which the line is located. Clipping is a handy way to collect important slides you want to go back to later. This is primarily service contract without spares and included annual maintenance contract of electrical substation. Electrical switchyard is usually a part of substation where electricity is transferred from one voltage. The substation scope includes one 211 kv 45 mva threephase transformer with provision for. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area. 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. The only option available in the present distribution network is the ppt.
Key diagram 11kv400v indoor substation iiteeeestudents. For presentation of design drawings and circuit documents iec publication. In todays life electricity plays a very vital role. Medium voltage distribution catalogue 2015 genieevo range. We collected most searched pages list related with 33 11kv substation design pdf and more about it. Mesa substation the existing mesa 220 kilovolt kv substation in monterey park will be upgraded to a 500 kv substation. The transformer steps down the voltage to 400 v, 3phase, 4wire. The input for a distribution substation is typically at least two transmission or subtransmission lines. Its main function is to receive energy transmitted at high voltage from the generating station, by. The demand of electricity is being increased day by. When a decision to supply power at mv has been made, there are two widelyfollowed methods of proceeding. Read online 3311 kv substation under lar, apdcl book pdf free download link book now. Doc page 6 of 35 which steps the voltage up f rom 11 kv to 22 k v, and tods corner zone substation, which steps up the voltage from 6.
B substation standards transformer platforms steel design and details 53. Pdf in a power system, load varies from one hour to another, reactive power varies accordingly which results into unacceptable voltage. Oct 07, 2014 the rec standard mentions that an outdoor type 33 11 kv substation should have 2 power transformers and 3 outgoing feeders. Now the transmission line first parallel connected with lightning arrester to diverge surge, followed by cvt connected parallel. All books are in clear copy here, and all files are secure so dont worry about it. The thesis deals with the analysis of construction of power lines and substation switchyard of 33 11 kv. The rec standard mentions that an outdoor type 33 11 kv substation should have 2 power transformers and 3 outgoing feeders. Jun 08, 2011 11 minimum clearance of conductor above ground while crossing the road or a public through fare for 11 kv is 6. Any technicalcourseis incompletewithoutsome type of. Projects product 11kv433v mobileskid mounted substation sheet 2 of 46 details of equipments. The next level range covers 245 kv and 300 kv with one gis type.
Considering a dumper of cat 777 ob dump truck empty 100ttrk 9780x6105x5147, its height will be approx 5. The main function of the substation is to collect the energy transmitted at high. The main bus 33kv is connected to grid located at sector25, indiranagar, lucknow. Similarly near the consumers localities, the voltage may have to be stepped down to utilization level. The only option available in the present distribution network is the circuit breaker one each for every main 11 kv feeder at the 33 kv substation.
No description of technical parameter unit data 1 nominal system voltage kv rms 33kv 2 maximum system voltage kv rms 36. The mesa substation project will primarily consist of the following elements. 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. Sbiims inviting tender on behalf of sbi for operation and maintenance of 11 kv 440 v electrical substation and electrical maintenance contract for sbi residential flats, jyoti nagar, jaipur and sbi lho, tilak marg, jaipur premises from competentbanks empanelled electrical contractors having a class electrical.
Design, manufacture and of compact substation of 11kv415 volts, equipped with 2000 kva cast resin transformer, 4 way 11kv ring main unit. From the etap generated load flow details and the short circuit details are studied. Highvoltage substations in the united kingdom wikipedia. A substation is an intermediate switching, transforming or converting station between the generating station and the low tension. The substation scope is identical to barhabise 2202 11 kv substation as above. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 33 11 kv. Download 3311 kv substation under lar, apdcl book pdf free download link or read online here in pdf. The substation scope is identical to barhabise 220211 kv substation as above. Etap software, load flow, short circuit, 2 kv substations. Design,supply,manufacturing,erection, te 2 11 kv substation with sas at i. Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india. The 345 kv voltage level is treated as 362 kv and is nolonger advocated by standards. The highvoltage 400 kv and 275 kv electricity substations in the united kingdom are listed in the following tables.
This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978. Design,supply,manufacturing,erection, te 211 kv substation with sas at i. Design study for 3311 kv substation, distribution and. Transmission and substation fact sheet november 2017 site c substation. Home university of southern california dissertations and theses 66 to 11 kv new distribution substation design. The number of 33 kv incoming feeder may be one or two depending upon the requirement. 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. Fundamentals of modern electrical substations part 1. Gas insulated substations gis is a compact,multicomponent assembly enclosed in a ground metallic housing in which the primary insulating medium is compressed sulphur hexafluoride. The proposed project would also include construction of a 115 kv loopin from the existing valleyauldpauba 115 kv subtransmission line into the new substation, two new underground 12 kv distribution duct banks, and a telecommunications system to connect the proposed triton substation to the existing auld and moraga substations. All rus borrowers rus electric staff effective date. Pdf design of groundmat for 11kv substation using auto grid pro. He emphasized the impor tance of public collaboration while the ministry is working for.
The circuit, busbar ratings and fault levels for power stations generators and. Design,supply,manufacturing,erection, te sting and. Along each such 11 kv feeder, there are 11 kv 433 v distribution substations at suitable locations, to step down the. There must be provision for 2 additional 11 kv outgoing feeder for load enhancements in future.
Relays are used for disconnecting the circuits by manual or automatic operation. Existing and proposed single line diagram for 3311 kv. Supply of prefabricated control building it is anticipated that this contract could include the design, supply and fabrication of the control building for the site c substation. Otherwise, the 11 kv feeder would terminate at a location beyond which there are no customers. The existing substation sits on 22 acres of an 84acre parcel owned by sce and the proposed project will use about 70 acres. I want all the equation which is not shown in pdf file of design study for 3311 kv substation, distribution and protection in the city of kenya so what can i do. Supervisor substation maintenance classification grade number. Construction of a new 56megavoltampere mva, 6612 kv substation natural substation, which will be constructed and operated at the storage field on an approximately 1acre site. Distribution voltages are typically medium voltage, between 2. The substations provide entry points to, and exit points from, the national grid gb. Pdf load flow analysis of 2 11 kv distribution sub station using. Aug 1, 2011 a construction of new 3311 kv primary substation. Specification for erection, testing and commissioning of 66. Training report of 3311kv substation mohamdabad, tundla 44,063 views.
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