The power from main bus was fed into a 20mva transformer which. Primary distribution feeders pdf voltage is 33kv primary distribution voltage to various injection substations for further distribution in nigeria. The single line diagram makes the system easy and it provides the facilitates reading of the electrical supply. What is the criteria for selection of 33kv11kv or 66kv. An electrical substation is a combination of a number of major electrical equipments like power transformers, circuit breakers, instruments transformers, bus bars, lightning arresters, control panels, interconnecting cables, capacitor banks, battery set, and other related equipments designed as per the requirements, size, capacity and class of the substation.
The 3phase, 3wire 11 kv line is tapped and brought to the gang operating switch installed near the substation. Western will require 40 calendar days to answer correspondence pertaining to each submittal of data or drawings. Jun 24, 2017 the substation size depends on the capacity of the sub station like 2 mw, 5 mw 10 mw etc. Analysis of 3311kv rsu injection substation for improved. Earthing design of 11kv and 33kv rural substations in the uk. They step down the ehv to hv as per the requirement of the customers. Lochay 211kv transformer replacement faqs who are scottish and southern. Secondary substations receive power at 6633kv which is stepped down usually to 11kv.
Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. The new substation will receive power from a higher capacity 2 kv transmission line with greater reliability than the existing 33 kv subtransmission line. Owners supply materials osm 3311 kv power transformers, station 330. A cable fed substation will have a split factor somewhere between 5% and 40% depending on the cable. The analysis is done by using advance software electrical transient analyser program etap with detailed load flow analysis. The input for a distribution substation is typically at least two transmission or subtransmission lines. What is the criteria for selection of 33kv11kv or 66kv11kv. With your download, get the 23 best papers relevant to this one, including 17 top related papers. Substation design manual i reference ni000401r121 ver 2 ergon energy corporation limited abn 50 087 646 062 ergon energy queensland pty ltd abn 11 121 177 802 revision history version description of change approval date revised by 1 initial version 250320 draft 2a content revised and additional content added. Electric power may flow through several substations.
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. Secondary distribution feeders sdf voltage is 11kv to. The single line diagram of the substation is simulated in. 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. The substation scope is identical to barhabise 220211 kv substation as above. Design,supply,manufacturing,erection, te 2 11 kv substation with sas at i. We considered incoming power at 2 kv and the power was transferred to main bus through isolatorcircuit breakerisolator. Design of 6611kv, 20mva substation before the ratings of various items of equipments in a substation are chosen and their locations in the substation decided it is necessary to draw a single. A mini project report on operation and maintenance of 2202kv substation submitted in. Compliance with all technical requirements all energize elements comply with the required clearances clearances verify compliance with the last requirements of the national electrical safety code or prepa diseno subw\copy of svc subst profile 2. Load flow analysis of 2 11 kv distribution sub station using static var compensator for voltage enhancement a case study article pdf available november 2009 with 1,817 reads how we.
Small rural 11kv and 33kv substations can often be problematic to earth safely. Key diagram of substation key diagram of 11kv400v indoor. Maintenance and operation of an electrical substation of. Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india. Jul 28, 20 these are also referred to ehv substations. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area.
Secondary distribution feeders sdf voltage is 11kv to various consumers on point load and consumers down the street and roads through overhead lines and underground cables. Economical voltage rating has been categorised for different power range to be received thumb rule. Tender document for construction of 233kv substation on turnkey basis for supply, transportation, erection, commissioning and civil work tender no. Existing and proposed single line diagram for 3311 kv. During substation upgrades continuity of supply to. Technical specification construction of 3311 kv primary substations. Technical specification construction of 3311 kv primary sub. Mark dunk primary substation design uk power networks. Single line diagram of 11kv substation substation provides the energy supply for the local area in which the line is located. Substation design volume ii physical layout instructor. For the design of electrical equipment for the realization of stable power.
The single line diagram sld in figure 1 shows the khimtikathmandu. A design layout of 233 kv, 200 mw substation the substation is connected with three substations or load viz. 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. This research paper deals with the simulation of 2 33 11kv substation. The substation equipments such as conductors, transformers, etc. Under the project, a new 23311 kv kawasoti substation will be constructed with a transformer of 2 33 kv, 30 mva. Installation of 11kv440v distribution substation ajinkya lonare1, pravin 2bodadkar, 4shuchiket darunde3, dr. The main function of the substation is to collect the energy transmitted at high. The problem with substation upgrades on existing general arrangement designs is the cost involved to upgrade the 66 kv substations to 2 kv.
Agrawal 1,2,3be student123, department of electrical engineering 4proffessor4, department of electrical engineering kdk college of engineering, nagpur, maharashtra, india abstract transmission. The project work assigned to us was to design a 233 kv ehv substation. Load flow analysis of 2 11 kv distribution sub station using static var. Under the project, a new 23311 kv kawasoti substation will be. Single line diagram 33kv11kv substation in hindi youtube. Economical voltage rating has been categorised for different power range to be received thumb.
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. 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. An electrical substation is a subsidiary station of a transmission and distribution system where voltage is transformed from high to low using transformers. Lochay 211kv transformer replacement faqs why is the proposed site not nearer the existing site and so close to the main roads in glen lochay. Design,supply,manufacturing,erection, te sting and. Etap based upon actual data, and it is seen that at the 11kv.
Pdf in the operation and design planning for the power system, the. Whenever light surges occur then, a highvoltage pass through these electrical components causing. Nonsecurity item tender document for construction of 233kv substation on turnkey basis for supply, transportation, erection. To overcome the under voltage at the 11kv, 33kv feeder buses and 2 kv buses capacitor bank of suitable ratings are added. Design study for new 23311 kv power substation in kingdom. The ergon energy design philosophy is to provide substations. The input for a distribution substation is typically at least two. Design study for new 23311 kv power substation in kingdom of. Also, we have carried short circuit study of 2 3311 kv substation system using etap software. Similarly near the consumers localities, the voltage may have to be stepped down to utilization level. Hence great care has to be taken to select the layout and. Whilst standardisation of civil design aspects is preferable, it is accepted that each project is specific. Pdf load flow analysis of 2 11 kv distribution sub station using.
Introduction sub stations are important link between generating stations and distribution networks. Sep 20, 2015 the project work assigned to us was to 233 kv ehv substation electrical design. At a sub station, the level of secondary transmission voltage 2kv, 66 or 33 kv reduced to 11kv. Extension of double 2kv busbar with buscoupler, 2 x new 2kv line bays with single pole tripping with additional space for 6. We considered incoming power at 2 kv and the power was transferred to main bus through isolatorcircuit breakerisolator combination. Distribution voltages are typically medium voltage, between 2. Electrical design of 233kv substation line diagram. Jun 20, 2018 single line diagram33kv11kv substation this is the easy way to understand the working of substation. Starting from the generating stations to the end users, voltage is needed to be stepped up and down several times in various substations. The difference between the ground potential rise and the surface potential at the point where the person is standing while at the same time having a hand in contact. 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. Lochay 211kv transformer replacement our proposed solution our chosen site for the replacement and relocation of the two transformers and terminal tower is adjacent to the existing lochay power. The project work assigned to us was to design a 2 33 kv ehv substation. Pdf irjetdesign analysis of 2202 kv substation using.
Pdf maintenance and operation of an electrical substation. What is the minimum area required for constructing an 11kv. Substation design manual i reference ni000401r121 ver 2 ergon energy corporation limited abn 50 087 646 062 ergon energy queensland pty ltd abn 11 121 177 802 revision history version. The key diagram of this substation can be explained as under.
Pdf load flow analysis of 2 11 kv distribution sub. Electrical power system provides a vital service to the society. Design of 6611kv, 20mva substation before the ratings of various items of equipments in a substation are chosen and their locations in the substation decided it is necessary to draw a single line diagram, also called key diagram. The difference between the ground potential rise and the surface potential at the point where the person is standing while at the same time having a hand in contact with a grounded structure. The existing substation was constructed in 1958 when the hydro station was commissioned. Agrawal 1,2,3be student123, department of electrical engineering 4proffessor4. Design study for new 23311 kv power substation in kingdom of nepal. Since this original request plan is to increase the reliability of power supply suitable for increasing electricity demand by separating the load supplied by the existing 33 11kv substation, a new 2 11kv substation is planned to be constructed in kawasoti area being fed from 2 kv transmission line. The substation rating is defined as per the power handling capacity, location and purpose of substation. Extension to substation site, drainage, elevations, and setting out for. What is the minimum area required for constructing an 11. Electric power may flow through several substations between generating plant and consumer, and may be changed in voltage in several steps.
This job is again accomplished by suitable apparatus called substation. I assume an average suburban station of 5 mw of 11 kv substation. Aug 05, 2017 2 33kv substation training, 3311 kv substation working in hindi 2 33kv substation training, tour,transformers,control panel 2202kv substation explained in hindi. There are two main constraints in this area which have prevented the substation being positioned any closer to the existing site. Sep 20, 2015 the project work assigned to us was to 2 33 kv ehv substation electrical design. For healthy operation of electrical power generation, transmission and distribution, it is important that system should be balanced. Pdf in a power system, load varies from one hour to another, reactive power varies. Key diagram 11kv400v indoor substation iiteeeestudents. Stability of the system, reliability of power depends on the type of layout chosen and components used in the sub stations. 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 substation in bhinmal, jalore343029, rajasthan is one of. Freehand sketches or skewed scans will not be accepted.