Schematic diagram of a breakerandahalf bus configuration with a transformer bank. Substation, switchgear and equipment maintenance and testing. Substations equipment maintenance electric power systems. Numbers of breakers, disconnect switches, transformers, auxiliaries, protective devices, lines and other equipment. An electrical generator is one of the most important equipment. The detailed parsing procedure of the whole substation equipment of the project is as follows. Figure c3 shows a schematic diagram for two positions of a breakerandahalf bus. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. There is numerous electrical substation components like outgoing and incoming circuitry each of which having its circuit breakers, isolators, transformers, and busbar system etc for the smooth functioning of the system. This webinar discusses the basic configuration of a substation as well as the key players involved with operations and control of transmission and distribution circuits. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978. Classification of substation singleline diagrams based on fuzzy systems.
His one is the first video i am putting on my channel. Steel structures provide support for insulators, which are used to terminate lines, and support buses. The substation design manual is not intended to replace asset management standards, but rather. Maintenance and operation of an electrical substation of. The layout of the substation is very important since there should be a security of supply. Our engineers have completed substation testing and maintenance including power transformers, switchgear from 600 v to 35 kv, overhead and industrial switches, reclosers, relays, breakers and regulators for over 20 different utilities and industrial customers.
Distribution substations may also be the points of voltage regulation. The electrical substation design is a complex method with full of engineer planning. Surge arresters are also provided near the transformer terminals phase to ground. It is usually of the threepole, singlethrow, groupoperated. Its emphasis is on communicating the functions of the power equipment and the associated protection and control system. Materials and equipment module 8220111 multimedia projector and screen power line worker level two. Miscellaneous equipment like fuses, auxiliary supplies etc a typical layout of an electrical substation is shown below with the help of single line diagram. A substation standards switching diagram operating numbers bus configuration 6. Maintenance and operation of an electrical substation of 220233 kv. Short circuit and current capacity of equipment, bus and other equipment compliance with projects scope and requirements number of feeders and load circuits. Electrical substation an assembly of equipment in an electric system through which electrical energy is passed for. Ppt on substation equipments authorstream presentation. Overview purpose of substations substation equipment substation control house substation bus configurations.
After key diagram prepared, layout drawings are prepared to show the actual position of. In the past, large lattice and boxtype structures supporting overhead strain buses were commonly used. Part 3 of the course fundamentals of modern electrical substations is concentrated on substation engineering aspects, which may be very challenging and require from utility companies engineers a very diverse knowledge and experience to address these aspects. Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india. Single line diagram of 11kv substation substation provides the energy supply for the local area in which the line is located. The probability of a fault during circuit breaker maintenance. A substation is a part of an electrical generation, transmission, and distribution. Technical specification construction of 3311 kv primary substations. In this post, i will discuss all the electrical equipment that we practically used in our outdoor electrical substation first of all our demand load form, the government grid line was 3mw and there was a guideline for making this substation like transformer must be installed at the outdoor, well. Current transformer when current in a circuit is too high to directly apply to measuring instruments, a current transformer is used. 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. Sirius 2kv substation preliminary design report document number revision no date page pdf. There is numerous electrical substation components like outgoing and incoming circuitry each of which having its circuit breakers, isolators, transformers, and busbar system etc for the smooth functioning of the.
Substation substation a station in the power transmission system at which electric power is transformed to a conveniently used form. This diagram contains other substation equipment, such as wave traps and instrumentation transformers, not shown on the above diagrams. Electrical substation components list diagram, working. The substation bus tubing or bus bar is aluminum or copper. In an ideal substation all circuits and equipment would be duplicated such that following a fault, or during maintenance, a connection remains available. The key steps in the substation designing include switchingsystem, planning and placing of equipment, selection of components as well as ordering, support of engineers, structural design, the design of electrical layout, protection of relay, and major apparatus ratings. Fundamentals of modern electrical substations part 3. The equipment like bus bars, isolator, power transformer etc. Basic distribution substation figure 1 is a oneline diagram for a simple distribution substation. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. The profile of substation structures and equipment has become an increasingly important aspect to consider in substation layout. 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. Understanding substation single line diagrams and iec. A substation is a part of an electrical generation, transmission, and distribution system.
Electrical substation equipment for transferring of electrical power from generating unit to distributing units various types of electrical equipment are required. All electrical equipment furnished under this substation transformer specification shall be designed. Indoor type substations outdoor substations elements on. Two type of surge arresters are available 1 gapped arresters 2 gapless zinc. A bypass switch is provided so service can continue during circuit breaker maintenance. Reliability of substation configurations daniel nack, iowa state university, 2005. Section 4 is the load flow analysis of the substation. It will include the following i detailed investigation of substation and preparation of boq to be done by the bidder.
Figure 2 shows the oneline diagram of a single bus substation configuration. The single line diagram sld is the most basic of the set of diagrams that are used to document the electrical functionality of the substation. Sirius substation preliminary design report rev0 july 2015. This article is about electrical substation definition, line diagram, different substation layouts like single busbar, meshbar etc and uses of substations. Distribution substations michigan technological university. The electricity substation is a network of electrical equipment which is connected in a structured way in order to supply electricity to end consumers. Single source, single feeder substation the oneline diagram of a singlesource, singlefeeder substation with the minimum equipment used.
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. Grid substations town substation classification of substations on the basis of design. Appendix c table of contents substation drawings singer substation drawing no. The drawings and catalog cuts shall be accompanied by a. Direct strokes from lightning can damage substation equipment and bus work. Singleline diagrams sld a singleline diagram shows the disposition of equipment in a substation, or network, in a simplified manner, using internationally accepted symbols to represent various items of equipment such as transformers, circuit breakers and disconnectors, generally with a single line being used to represent threephase connections. Substation equipment an overview sciencedirect topics. Substation layout substation layout single line diagram check. B substation standards switching diagram operating numbers bus configuration. This equipment is a compact multicomponent assembly, enclosed in a ground metallic housing, which the primary insulation medium is a. It has the capabilities to support serial communications to a scada sever and reports to modern rtu via communication channels. Electrical equipment used at electrical substations.
All the data used for analysis is real time and collected from 23311kv. The station may consist of transformers, switches, circuit breakers and other auxilliary equipment. The substation buses are currentcarrying devices that interconnect the individual pieces of substation equipment. It generates electricity by converting mechanical energy of the prime mover into electrical form. When the space available for the installation of the substation is short or when the environmental conditions are extremely severe the usual solution is to install a gis gas insulated substation, which schematic diagram is shown in figure 3.
Inert gas system diagram and installation instructions. Transformer power transformers are used in transmission network of higher voltages for stepup and step down application 400 kv, 200 kv, 110. Contents introduction to substation line diagram of 220233kv substation equipment used in substation. Firstly, the parsing software for smart labels is installed, and the database file is downloaded. Here i am explaining the different equipment which are widely used in electrical substation. The basis for any substation automation specification remains the single line diagram of the substation to be controlled, protected and monitored as well. What is a electrical substation definition, layout, and. Once a project database file is selected on a handheld terminal, the whole equipment deployment diagram of the substation will be shown by the parsing. Between the generating station and consumer, electric power may flow through several substations at different voltage levels. I was responsible for making a 33kv outdoor electrical substation for my factory. Pdf classification of substation singleline diagrams.
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