Single line diagram indoor education interior educational illustrations learning onderwijs studying. The manual is applicable for all substation projects regardless of internalexternal design delivery mode. 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. Indoor substations may either be entirely underground or look similar to other buildings in the neighborhoods that they serve. The scope also covers provision of additional bays without equipments over. Depending on the function performed, it can be defined as a transforming, conversion, transmission or distribution substation. Distribution substations michigan technological university. Lsis who has been a leader in electricity and automation in. Jun 20, 2018 single line diagram 33kv11kv substation this is the easy way to understand the working of substation. Graphical symbols for various types of apparatus and circuit elements on substation main connection diagram. The probability of a fault during circuit breaker maintenance. Equipments of substation, single line diagram for the pdf click on the link. Electrical design of 233kv substation line diagram.
The single line diagram of the 33kv substation is depicted in the figure below. It is not intended to be used for system design or installation. Pdf this paper proposes three approaches to classify substation singleline diagrams so it can be used in a power distribution network expansion. What is a electrical substation definition, layout, and. Understanding substation single line diagrams and iec. Basics 8 mov block diagram basics 8 mov elementary diagram. Gas insulated substation definitions and basics course no. All equipment of the substation is installed within the. This course is based on terms used in ieee and iec regulations. The compact type unit substations has the following advantages. Single line diagram of indoor substation single line. A mv lv transformer electrical substation consists, therefore, of the.
Basic distribution substation figure 1 is a one line diagram for a simple distribution substation. A total substation automation concept user friendly software tools application general substation automation includes a complete range of flexible object terminals, including all necessary functions for substation control and substation monitoring systems. The ergon energy design philosophy is to provide substations. Guidelines for substation and power distribution systems. Diagram of user system for connection and mv switchgear. Substation enclosure substation building for indoor substation.
Its emphasis is on communicating the functions of the power equipment and the associated protection and control system. Lets explain the main parts of it and how it actually works. Such type of substation is mainly used for the voltage up to 1 v, but when the surrounding air is contaminated by impurities such as metal corroding gases and fumes, conductive dust, etc. Preferred rating for indoor circuit breakers with voltage range factor k 1. Single line diagram of 11kv substation substation provides the energy supply for the local area in which the line is located. Medium voltage products technical guide the mvlv transformer.
The contractor shall finalize the layout arrangements in case of new substations in line with. This material is made available on the basis that it. The single line diagram sld in figure 1 shows the khimtikathmandu 220400 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. The 3phase, 3wire 11 kv line is tapped and brought to the gang operating switch installed near the substation.
Figure 1 shows the singleline diagram of a typical 6611 kv substation. Visiosld 2 single line diagram for gridinteractive micro. Nov 14, 2011 i the 3phase, 3wire 11 kv line is tapped and brought to the gang operating switch installed near the substation. Transmission network and distribution network where the transmission. Gis there are two terms presented in iec gas insulated switchgear and ieee gas insulated substations. The substation component of the project will be based on the arcadia single line diagram see 5. An indoor substation houses all electrical equipment within the walls of a building. Lsis is developing and presenting world best products. Medium voltagelow voltage mvlv transformer substations. In indoor kiosks in power stations and main receiving stations, the busbar and.
This topic and the next ones will teach you how to read, interpret and draw all types of electrical diagrams. Single source, single feeder substation the oneline diagram of a singlesource, singlefeeder substation with the minimum equipment used. Single line diagrams of substations 6611 kv and 110. The one line 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. This technical article describes single line diagrams of two typical power substations 6611 kv and 110. Electrical single line diagrampart one electrical knowhow. The goal of this course was to learn about lighting. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978. Electrical substation equipment for transferring of electrical power from generating unit to distributing units various types of electrical equipment are required. Ryan shed plans 12,000 shed plans and designs for easy shed building. 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.
The equipment like bus bars, isolator, power transformer etc. The diagram does not necessarily show the actual path of the cables, but simply which outlets and fixtures are controlled by which switches. Depending on the load being served, it is possible that initial construction may be limited to one distribution circuit. High voltage transmission lines are used to transmit the electric power from the generating stations to the load centers. A single line drawn on these diagram wills always indicate at least two conductors. Single line diagram of 3311 kv jampaijala for tender purpose only. Location of the surrounding loads in the layout of both the current and the. Key diagram of substation key diagram of 11kv400v indoor. One or more or all of the below referred works are envisaged to be carried out under each package. The substation is a basic part of the electrical system. 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 goal is to provide an analytical comparison for all options so that one can.
Single source, single feeder substation the one line diagram of a single source, single feeder substation with the minimum equipment used. A single line diagram of a typical such substation is shown in fig. 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. Numbers of breakers, disconnect switches, transformers, auxiliaries, protective devices, lines and other equipment.
In general, it was connected to the transmission system by looping, single tapping, or double tapping flip. Single line diagram of 3311 kv jampaijala for tender. Single line drawing guidelines electrical engineering centre. Customer substation manual 6272019 table of contents page 3 of 82.
Substation single line diagrams this technical article describes single line. Technical specification construction of 3311 kv primary sub. Normally, a power system is designed so that the effects of an outage caused by the failure of a single component such as a transformer, transmission line, or distribution line will result in minimal interruption of service and affect the fewest customers possible. Pdf single line diagram of substations pankaj choudhary. Key diagram 11kv400v indoor substation iiteeeestudents. The fence is connected to a separate grounding conductor. The single line diagram sld in figure 1 shows the khimtikathmandu 220400 kv transmission line and illustrates how barhabise, laphsiphedi and changunarayan grid substations are interconnected in order to enable transmission supply at 2 kv and eliminate. Gis substation design and execution hv and ehv gis. Single line diagram sld 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. High voltage network highvoltage networks, consist of transmission lines, connects the power plants and highvoltage substations in parallel. The size of the power system determines the number of drawings required. In general, it was connected to the transmission system by looping, single. Technical specification construction of 3311 kv primary substations. Pdf substation design manual shally gupta academia.
This network permits load sharing among power plants. Power evacuation, main single line diagram, grid interconnection. The key diagram of this substation can be explained as under. Regarding elements in singleline diagrams, they were already explained in previous article, so if you didnt read it, its advisable to do it first. A substation is part of a system and not an entity to itself. Overall plant single line diagrams show the electrical power distribution system, in simplified form, from the utility andor generated supply to the load side of substation protection devices. Substation switching schemes switching scheme of substation this technical article is intended to provide description and comparison of single line options for a desn substation. Single line diagram 33kv11kv substation in hindi youtube. The substation design manual is not intended to replace asset management standards, but rather. Figure 1 shows the single line diagram of a typical 6611 kv substation. The main function of the substation is to collect the energy. Several crucial terms are for better understanding of the presented material.
Typical electrical drawing symbols and conventions. All of the building blocks are based on state of the art. Single line diagram of substations substations electric power is produced at the power generating stations, which are generally located far away from the load centers. Single line diagram 33kv11kv substation this is the easy way to understand the working of substation. The subtransmission circuit enters the substation through a primary disconnect switch used principally to.
This is because the diagram shows multiconductor cables with a single line. Customer substation manual 6272019 table of contents page 2 of 82 section description 0 preface. Pdf classification of substation singleline diagrams based. Electrical substation components list diagram, working.
The station layout and equipment rating shall be based on the single line diagram and general layout enclosed. Regarding elements in single line diagrams, they were already explained in previous article, so if you didnt read it, its advisable to do it first 6611 kv outdoor substation single line diagram. The proper reading and interpretation of electrical diagrams will provide you with the following benefits. A bypass switch is provided so service can continue during circuit breaker maintenance. Now the transmission line first parallel connected with lightning arrester to diverge surge, followed by cvt connected parallel. Technical guide the mvlv transformer substations abb group. When it is decided to build a new substation or expand an existing substation, a detailed study of system parameters is performed to determine location, size, voltage, sources, loads, and role the substation performs on the system. Drawing sld 2 single line diagram for gridinteractive microgenerator. Lsis who has been a leader in electricity and automation.
Design guide for rural substations usda rural development. Single line diagram of 3311 kv jampaijala for tender purpose. What is the 2 hour emergency rating under singlecontingency loss of a transformer n1 3. Electrical single line diagram part one introduction. Indoor substation a substation in which the apparatus is equipped inside the substation building is called indoor substation. Interconnection and switchyard layout up to 245 kv. Urban substations are usually built in brick, whereas rural.
Dec 25, 2018 the electricity substation is a network of electrical equipment which is connected in a structured way in order to supply electricity to end consumers. House layout plansduplex house plansmodern house plans. Figure 1 protection engineer setting abbs relays in power substation photo. Generally, the overall plant single line diagrams do not include breakdowns. Single line diagram 33kv11kv substation this is the easy way to understand the working of. The main bus 33kv is connected to grid located at sector25, indiranagar, lucknow. Dec, 2018 single line diagram of an electrical substation. 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.
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