It includes study of transmission lines, bus bars, circuit breakers. Fundamentals of modern electrical substations part 1. The electrical substation can be defined as a network of electrical components comprising of power transformers, busbars, auxiliaries, and switchgear etc. A distribution substation transfers power from the transmission system to the. This is the first question, you can expect during any interview you face. Fundamentals of electrical substations and switchgear. As power is transmitted at a higher voltage over long distances, the current is lower. 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 sf6 gas. Electric power equipment maintenance and testing, 2nd edition. Pdf maintenance and operation of an electrical substation of 220. Equipments in sub station free download as word doc.
Substation equipment and its function 2 slideshare. Abstractthis paper analyzes the sampled value sv process bus concept that was recently introduced by the iec. If the process layer device has the status monitoring function, the monitored status information is. Substation automation systems make their control and monitoring possible in. Earth bus bars are typically bolted directly onto any metal chassis of their enclosure. Download as ppt, pdf, txt or read online from scribd. Basic substation configurations and the components. Vuspec summary ieee power substations standards collection included active standards covering switching stations, transformer stations, and generating station switchyards. Iec 6185092 process bus and its impact on power system. Introduction in our present society that is greatly dependent on electric power, substation technology plays an important role in the stable and highquality transmission of electric energy. 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. In our project we are going to study about the operation of different equipments in substation. Solutions for electrical substation maintenance smc. Design study for 3311 kv substation, distribution and.
Electrical substation general equipments electrical. Electrical substation components, workings and their functions. Substation equipment such as circuitbeakers, isolators, earthing switches, surge arresters, cts, vts, neutral grounding equipment. Electrical substation general equipments free download as powerpoint presentation. 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. Xml is suitable for defining structuredsemantics markup language related to. The smart substation should make full use of advanced technologies, such as big data, mobile interconnection, artificial intelligence, and image recognition, to realize the intelligent operation and maintenance of substation equipment in the mode of highest efficiency and lowest cost, with the functions of. The use of this equipment is mandatory on certain jobs. Components and substations for electrical transmission and. A blog is all about an electrical engineering it contains topic which is helpful to each and every persons belongs to electrical engineering field. A substation is a part of an electrical generation, transmission, and distribution system. All of the building blocks are based on state of the art numerical technology, compatible with conventional equipment. And also an attempt is made to cover the general maintenance of substation.
The specifications are determined between the substation equipment and insulator manufacturers. The purpose of the database is to provide a basis for developing or improving equipment vulnerability functions. Substations that interconnect multiple utilities, generators, or. To better understand the importance of electrical substations, lets start with a discussion about the structure of the power systems and their main components.
Maintenance and operation of an electrical substation of 220233 kv. Part 1 also provides an overview of substation major equipment, explaining the mission, and arrangement of each component. The role of ehvehv and ehvhv substations in transmission network. Before embarking on determining substation reliability indices, it is helpful to be familiar with some of the common substation layouts and their corresponding names. Substation equipment operates at voltages ranging from 120 v to 500 kv. Switching operations substations connect or disconnect elements of the power system, using circuit breakers andor switches.
Development of an electrical substation equipment performance database for evaluation of equipment fragilities. As usual with smc test equipment, simplicity and easeofuse are common to all secondary testing solutions for electrical substation maintenance. Iec 6185092 process bus and its impact on power system protection and control reliability veselin skendzic, ian ender, and greg zweigle, schweitzer engineering laboratories, inc. This high voltage is very dangerous to the instruments used in the substation.
Gas insulated switchgear is used in industrial areas to fulfil highenergy demands by space. Thanks for sharing the useful information about substation equipment and its functions. If you have work that needs to be done in the house, you will need to consider their schedule. Design study for 3311 kv substation, distribution and protection in the city of kenya. Substations also enable one or more of the following functions to be accomplished. 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. 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.
Wire gauze is usually placed on top of this structure. Step up and step down of the voltage for transmission and distribution. The transformation and switching station is generally known as a substation which is further elaborated below. Substations volume i design parameters a pdh online. Their use is a must, and there is no question about that. Current transformer when current in a circuit is too high to directly apply to measuring instruments, a current transformer is used.
Unesco eolss sample chapters electrical energy systems components and substations for electrical transmission and distribution systems b. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Substation equipment s and functions 50 hr interview questions and answers sai saikumar jn 1. The substation buses are currentcarrying devices that interconnect the individual pieces of substation equipment. Substation assets facilitate the efficient transfer of power from source to load and protect the circuits delivering power including transmission lines. Pdf development of an electrical substation equipment. In this article you will learn different types of substations, their functions and different equipment used used in them. One purpose of a substation is to contain the equipment for changing electric energy from one voltage to another.
Supply of electric power to different consumers is done at low voltage level. The components are interconnected such that creating a. The new, improved technology can thus be implemented step by. 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. Introduction to substations annotated instructors guide module overview this module introduces trainees to the function of substations at all levels of the power grid, with an introduction to typical substation components included. Distribution substations michigan technological university. While electric substations take part of the distribution of electricity, they have many other functions as follows. Certain configurations may be more suited to a specific task, so the equipment in each type of substation may vary, but. For more information, please check the related smc products. Basic substation configurations and the components avo training. The electricity substation is a network of electrical equipment which is connected in a structured way in order to supply electricity to end consumers. Ieee substations standards collection is a single source for design construction and operation of power substations. Substation automation an overview sciencedirect topics. Advances in substation equipment technology have led to increased unit capacity, smaller size, and environmental preservation.
Electrical substation equipment for transferring of electrical power from generating unit to distributing units various types of electrical equipment are required. Electrical substation components list diagram, working. Distribution substations may also be the points of voltage regulation, although on long. Appendix c table of contents substation drawings singer substation drawing no. Substation automation includes a complete range of flexible object terminals, including all necessary functions for substation control and substation monitoring systems. This module introduces trainees to the function of substations at all levels of the power. Equipments in sub station electrical substation transformer. Management science by aryasri ebook pdf free download click here to download. The parsing of smart labels mainly contains the download and graphical display of the terminal.
Control and relay panel is most important equipment of the substation as it work as shield guard for all substation equipments and electrical network. As more ied devices are installed to the distribution network, the need for ied management, control, and the corresponding advanced application operation is a growing imperative. It means that you will have to refinance into a home rehab loan. 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 substation. Home technical articles substation main functions and classification primary distribution alstom 145kv gasinsulated switchgear gis f35 at the shuqaiq hv substation in saudi arabia an electrical substation is an assemblage of electrical components including busbars, switchgear, power transformers, auxiliaries etc.
Tikhodeev encyclopedia of life support systems eolss into substation equipment systems. Maintenance and operation of an electrical substation of. The equipment like bus bars, isolator, power transformer etc. What is a electrical substation definition, layout, and. Between the generating station and consumer, electric power may flow through several substations at different voltage levels. The course begins with a very general overview of the types of substations and their functions and then explains issues with siting a substation including weather and environmental issues. Utility clamp used to hold a test tube or other piece of equipment in place on a ring stand. Ppt on substation equipments authorstream presentation. Substation equipment an overview sciencedirect topics. Bus bars may be enclosed in a metal housing, in the form of bus duct or bus way, segregatedphase bus, or isolatedphase bus.
Ehvehv and ehvhv substations are an important element of the electricity transmission network of a country or of a large area of a country and their functions are. In the fault situations the electric apparatus and. The electrical substation design is a complex method with full of engineer planning. Most of the equipment in a sub station is provided with sufficient insulation from breaking down, yet others like bus bars, terminations of high voltage equipment, the equipment connected to takeof structures etc. Distribution substation automation in smart grid 65 substation automation sa can provide integral functions to the distribution grid automation.904 487 1551 420 353 1043 1489 1162 539 47 999 216 192 1398 164 240 977 207 364 134 492 458 142 1142 1036 803 974 859 323 367 1446