What is a electrical substation definition, layout, and. The tender portal gives you an insights about tenders and projects within medc. A substation standards switch operating platforms steel design and details 49. 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 single line diagram of the substation is simulated in etap based upon actual data, and it is seen that at the 11kv, 33kv feeder buses and 2 kv buses there is under voltage. We considered incoming power at 2 kv and the power was transferred to main bus through isolatorcircuit breakerisolator combination. Jul 20, 2018 owners existing and proposed single line diagram for 3311 kv.
The physical layout and the design of the substation are governed by. Single line diagram of 3311 kv jampaijala for tender. The project work assigned to us was to 233 kv ehv substation electrical design. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. The substation receives electrical energy directly from generating stations through incoming power supply lines while it delivers electricity to the consumers. The station may consist of transformers, switches, circuit breakers and other auxilliary equipment. Substation substation a station in the power transmission system at which. Pole mounted substation is the outdoor type cheapest form of substation for voltages not exceeding 33kv in which the equipments are installed overhead on hpole or 4pole structure and electric power is almost distributed in localities through such substation. Power evacuation, main single line diagram, grid interconnection. Pdf single line diagram of substations pankaj choudhary. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area.
Incoming or power feeder connection 33kv incoming line. Besides changing the voltage, the job of the distribution substation is to isolate faults in either the transmission or distribution systems. C2 appendix c table of contents substation drawings singer substation drawing no. The manual is applicable for all substation projects regardless. As you can see, the overview is complex, but on the other hand the mvlv electrical substation is the synthesis of several design activities electrical, mechanical, construction. The substation equipments such as conductors, transformers, etc. For the protection of substation and its components from the over currents or over load due to short circuit or any. 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.
The substation design manual is not intended to replace asset management standards, but rather. The manual is applicable for all substation projects regardless of internalexternal design delivery mode. The quality of our gas insulated switchgear is the result of a rigorous standard quality management system, which has been certified in accordance with iso 9001. Distribution voltages are typically medium voltage, between 2.
Single line diagram of 11kv substation substation provides the energy supply for the local area in which the line is located. Oct 07, 2014 the standard instruction for construction of 3311 kv substation is given in rec standards which specifies the layout along with the switchgear. Xdge is one of the most reliable gas insulated switchgear suppliers with. We considered incoming power at 2 kv and the power was transferred to main bus through isolatorcircuit breakerisolator. Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india. For fulfilling these huge power demands the modern time requires creation of bigger and bigger power generating stations. Design of 233kv substation sudipta sen, arindam chatterjee. Distribution substations may also be the points of voltage regulation, although on long distribution circuits several kmmiles, voltage regulation equipment may also be installed along the line.
Design study for 3311 kv substation, distribution and protection in the city of kenya. Electrical power substation engineering and layout. Technical specification construction of 3311 kv primary. Design study for 3311 kv substation, distribution and protection in. Manual for transmission lines and substation construction and. Mark dunk primary substation design uk power networks. In a thermal power plant i saw a substation of 220kv and in the other one 2kv. Whilst standardisation of civil design aspects is preferable, it is accepted that each project is specific. Earthing design of 11kv and 33kv rural substations in the uk. Our project is to design a 2kv33kv ehv substation where the incoming power is received at 2 kv from a generating station. Jun 20, 2018 single line diagram 33kv 11kv substation this is the easy way to understand the working of substation. To step down the 33kv primary voltage to 11kv suitable for distribution purpose. Manual for transmission lines and substation construction and maintenance activities volume i best management practices volume ii permits prepared for prepared by hdr engineering, inc 701 xenia.
The project work assigned to us was to design a 233 kv ehv substation. The standard layout guides for the general arrangement of the equipments, structures, busbars etc. To overcome the under voltage at the 11kv, 33kv feeder buses and 2 kv buses capacitor bank of suitable ratings are added. E substation standards transformer sudden pressure relay schematic diagram 62. The substation would be a combination of switching, controlling, and voltage stepdown equipment arranged to reduce subtransmission voltage to primary distribution voltage for. The input for a distribution substation is typically at least two. There are a number of considerations for substation layout, such as electrical and safety clearances, phase bay busbar spacing, live and dead maintenance distance requirements and designated.
It is a usual practice by many electrical utilities to prepare oneline diagrams with. Technical specification construction of 3311 kv primary substations. The aim of this project is to provide the consultancy service to doctor harisingh gour vishwavidyalaya, sagar mp for substation design, feeder up to 11 kv and estimation of cost. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. May 15, 2018 electrical substation now days the electrical power demand is increasing very rapidly. Technical specification construction of 3311 kv primary sub. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978. Areas outside the substation do not need to be considered. The two primary distribution feeders of the substation illustrated in figure 1 are protected by either power circuit breakers or automatic circuit reclosers. C substation standards typical duplex switchboard surge suppressor networks detail layout 60. Now days the electrical power demand is increasing very rapidly. The input for a distribution substation is typically at least two transmission or subtransmission lines. The scope of work shall include the complete design, construction, manufacture, shop testing, packing and. Design study for 3311 kv substation, distribution and.
Design parameters and standard layout of a 3311 kv substation. Guidelines for substation and power distribution systems. Manual for transmission lines and substation construction. Basic substation layout incoming subtransmission lines electric power path through substation outgoing distribution lines lightning arresters airbreak switches stepdown transformer distribution bus cutout switches oil circuit breaker voltage regulators metalclad switchgear control house. Single line diagram 33kv11kv substation in hindi youtube. 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. Power generated at the above spv plant shall be transported to getco substation using 66kv underground cables from each of two bays. The single line diagram of the 33kv substation is depicted in the figure below. The main function of the substation is to collect the energy transmitted at high. The substation would be a combination of switching, controlling, and voltage. Pole mounted substation is the outdoor type cheapest form of substation for voltages not exceeding 33kv in which the. Dec, 2018 the electrical substation does not have a single circuit but is composed of numerous outgoing and incoming circuits which are connected to a busbar i. Depending upon the availability of resources these stations are constructed.
Sep 20, 2015 the project work assigned to us was to 233 kv ehv substation electrical design. D substation standards control switches escutcheons, lamps and developments 61. Electrical design of 233kv substation line diagram. The neutral earthing resistors on the 11kv and 33kv limit fault levels so secondary substations will not be classed as hot. Manual for transmission lines and substation construction and maintenance activities volume i best management practices volume ii permits prepared for prepared by hdr engineering, inc 701 xenia avenue south, suite 600 minneapolis, minnesota 55416 february 2007. Substation substation a station in the power transmission system at which electric power is transformed to a conveniently used form.
The first step in planning a substation layout is the preparation of a oneline diagram, which shows in simplified form the switching and protection arrangement required, as well as the incoming supply lines and outgoing feeders or transmission lines. The sealed envelopes shall be again be put in another sealed cover and should be superscribed construction of 233kv. Technical specification for design, supply, installation and. Whenever light surges occur then, a highvoltage pass through these electrical components causing. Substation layout electrical substation electricity.
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