Depending on the load being served, it is possible that initial construction may be limited to one distribution circuit. Hello all acade gurus, i am a college student and i have been given a project to design a substation single line diagram and plan layout on autocad with predefined specifications busbar schemes, lines, etc i am new to autocad and i have few questions about it. 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. Understanding electrical schematics part 1 revised introduction. Graphic symbols for electrical and electronics diagrams. Every substation should have metering and indicating instruments e.
The work is tedious, timeconsuming and ease to make mistake. Hussain almashat i kv busbars and used to provide power supply to all substation axillaries. Electrical substation components list diagram, working. A distribution substation transfers power from the transmission system to the. Pdf maintenance and operation of an electrical substation of 220. Its emphasis is on communicating the functions of the power equipment and the associated protection and control system. Understanding substation single line diagrams and iec.
This page was last edited on february 2019, at 00. After detection of fault through manual or automatic way, there are. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area. This paper deals with the simulation of 2202 kv substation fault current calculation.
The electrical substation design is a complex method with full of engineer planning. Medium voltage products technical guide the mvlv transformer. The substation design manual is not intended to replace asset management standards, but rather. 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 electrical substation is the part of a power system in which the voltage is transformed from high to low or low to high for transmission, distribution, transformation and switching. Aug 25, 2018 single line diagram of 11kv substation substation provides the energy supply for the local area in which the line is located. The manual is applicable for all substation projects regardless of internalexternal design delivery mode. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978.
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. 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. Pdf single line diagram of substations denny rama prahara. It consists of two dead end poles to terminate the lines, two manual nonload. The input for a distribution substation is typically at least two transmission or subtransmission lines. The substation axillaries include providing power supply to emergency lighting, airconditioning, various socket outlets, battery chargers, and all other control and monitoring equipment. All rus borrowers rus electric staff effective date.
We would like to show you a description here but the site wont allow us. A 50 hz electrical substation in melbourne, australia. Substations are integral part of a power system and form important part of. Substation definition n critical for generation, transmission, and distribution system n performs several important switching functions n may have various voltage levels before it reaches the customer n owned and operated by an electrical utility or a large industrialcommercial customer. Plc and scada based distribution and substation automation s angayarkanni1, l aruna2, r aswini3, c deepa4, j kowsalya5 1assistant professor of department of electrical and electronics engineering, tejaa shakthi institute of technology for women, coimbatore, tamilnadu, india. An electrical substation is a part of the electrical installation that includes the terminations of the transmission or distribution lines and switchgear, and which may also include transformers the substation also typically includes all the necessary devices for control and protection. Learn hv substation elements graphic symbols, basics. Figure 1 schematic diagram of an electrical grid some consumers industry, shopping malls, casinos, etc. 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. Electrical diagrams are a factor in international trade.
This is showing three of the five 220 kv66 kv transformers, as well as highvoltage transformer fire barriers, each with a capacity of 150 mva. Fundamentals of modern electrical substations part 1. Substation oneline diagram automatic generation and. Part 1 also provides an overview of substation major equipment, explaining the mission, and arrangement of each component. Consider ultimate requirements during the initial design. The oneline diagram is similar to a block diagram except that electrical elements such as switches, circuit breakers, transformers, and capacitors are shown by standardized schematic symbols. Files are available under licenses specified on their description page. Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india. 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. Design guide for rural substations usda rural development. Today it is not uncommon for some manufacturers to show both types of diagrams on their equipment.
Electrical substation an electrical substation is a subsidiary station of an electricity generation, transmission and distribution system where voltage is transformed from high to low or the reverse using transformers. The subtransmission circuit enters the substation through a primary disconnect switch used principally to. Pdf substation oneline diagram automatic generation and. Dec, 2018 single line diagram of an electrical substation. Electric power may flow through several substations between generating plant and consumer, and may be changed in. The electricity substation is a network of electrical equipment which is connected in a structured way in order to supply electricity to end consumers. Customer substation manual 6272019 table of contents page 2 of 82 section description 0 preface 010. The third and last type of diagram is the installation diagram. Largescale power system olnd is usually manually developed and maintained. What is a electrical substation definition, layout, and. As you can see, the overview is complex, but on the other hand the mvlv electrical substation is the synthesis of. 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.
Figure 6 substation operator sitting in a control room with protection panels. Basic substation configurations and the components avo training. Electrical substation components, workings and their functions. Basic distribution substation figure 1 is a oneline diagram for a simple distribution substation.
Ansiieee standard device numbers 1 master element 2 time delay starting or closing relay 3 checking or interlocking relay 4 master contactor. Pdf substation design manual shally gupta academia. Single line diagram of 11kv substation autocad cadcam. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. The single line diagram of the 33kv substation is depicted in the figure below. Distribution automation handbook prototype elements of power d istribution systems 1mrs757959 4 3 elements of power distribution systems 3. Sld of an electrical system is the line diagram of the concerned electrical system. Technical guide the mvlv transformer substations abb group. The longrange plan identifies the requirements of a substation not only for its initial use but also for some years in the future. Basics 11 mov schematic with block included basics 12 12208 vac panel diagram.
Typical electrical drawing symbols and conventions. Listed are electrical substation equipment like transformers, busbar. The power transformer, circuit breaker, busbar, insulator, lightning arrester are the main components of an electrical substation. Compare figure 1 and figure 2 and note the differences in the way that motors, switches, and transformers are represented. Electronical commission iec recommendations iec publication 117, in various parts. Members of the preparing committee have been active in transmitting usa.
506 1567 1555 1118 974 1176 223 1588 505 1648 144 1057 25 1188 710 1512 1127 664 947 1465 139 1077 1478 767 1646 1041 206 92 978 583 5 645 469 582 817 1023 223 227 904 933 139 1045 718 1477 883 1270