The input for a distribution substation is typically at least two transmission or subtransmission lines. 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. Understanding substation single line diagrams and iec 61850. Single line diagrams of 220kv66kv11kv transmissiondg 01. 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. A architectural wiring diagram the architectural wiring diagram can be referred to as a oneline diagram. The oneline diagram can be printed or exported to the pdf or dwg format either on a single drawing or in the form of folios. Outgoing feeder for feeding the other subsequent substations or. A single line drawn on these diagram wills always indicate at least two conductors. Existing and proposed single line diagram for 3311 kv. In india generating voltage is 11 kv mostly, but 6. Three conditions have been simulated in order to analyse the behaviour of the power system in these situations. Paper open access primary design and protection of. Distribution substations michigan technological university.
Finally, we design a simple relay protection, and complete the design of the primary electrical part of 110kv substation. Single line diagrams do not show the exact electrical connections of the circuits. Basic singleline diagrams for substations ieee journals. Basic distribution substation figure 1 is a oneline diagram for a simple distribution substation. The single line diagram of the substation is shown in the figure below. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978. Technical guide the mvlv transformer substations abb group. Sep 20, 2015 the project work assigned to us was to 233 kv ehv substation electrical design. Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india.
Medium voltage products technical guide protection criteria for medium voltage networks. Unless otherwise noted, the impedance shown on a oneline diagram is based on the transformers oa rating. A bypass switch is provided so service can continue during circuit breaker maintenance. The line will split into two and connect each end to the symbol in exactly the right place. Basic single line diagrams for substations abstract.
Electrical drawings electrical distribution panel oneline diagram. Above pdf contains two slds of substations 220kv into 400v. 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. Single line diagram33kv11kv substation this is the easy way to understand the working of substation. The requirements in the design and other factors to be considered before the design as well. Single line diagrams of 220kv66kv11kv transmissiondg. Single line diagram s k goyal electrical substation. In order to analyze a power system under load conditions or upon the occurrence of a fault, it is essential to draw. A single line diagram is method of simplified representation of a three phase power system. Line diagrams are required to be submitted at prequalification under rule 3. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv.
The probability of a fault during circuit breaker maintenance. Single line diagram of 2x5 mva 3311 kv goh ss proposed goh gss 2x20mva 19 km dog terminal gantry 33 kv line 33 kv pt 33 kv bus bar 33 kv bus isolator 33 kv v. In practice, the ring scheme is characterised by the presence of at least one side. Singleline diagram properties have been reorganized, and can be saved and loaded.
This is because the diagram shows multiconductor cables with a single line. Smart substation control and protection ssc600, centralized protection for distribution substations, presentation. The oneline diagram is a userfriendly interface to create and manage the network database used for schematic network visualization. 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. The first step in planning a substation layout is the preparation of a one line diagram which shows in simplified form the switching and protection. Paper open access primary design and protection of 110kv. How to read and interpret single line diagram part two. Single line diagram 33kv11kv substation in hindi youtube. The substation component of the project will be based on the arcadia single line diagram see 5. This technical article describes single line diagrams of two typical power substations 6611 kv and 110.
Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area. As the name suggests, slds use a single line to represent all three phases. Abb library is a web tool for searching for documents related to abb products and services. To overcome the under voltage at the 11kv, 33kv feeder buses and 2 kv buses capacitor bank of suitable ratings are added. To add a symbol to your electrical design, all you have to do is drag a symbol to a line and drop it. Singleline diagrams have been optimized for performance and improved layout. The symbol will stay attached even when you move the line around. Electrical single line diagrampart one electrical knowhow.
Single line diagrams of substations 6611 kv and 110. Single line diagram of 11kv substation substation provides the energy supply for the local area in which the line is located. Medium voltagelow voltage mvlv transformer substations. Pdf classification of substation singleline diagrams based on. The highvoltage winding is rated 69 line to line kilovolts kv and the lowvoltage winding is rated. Medium voltage products technical guide protection. Single line diagram s k goyal free download as powerpoint presentation. Depending on the load being served, it is possible that initial construction may be limited to one distribution circuit. The project work assigned to us was to 233 kv ehv substation electrical design. Pdf single line diagram of substations prakash pandey.
Starting from the generating stations to the end users, voltage is needed to be stepped up and down several times in various substations. Single source, single feeder substation the one line diagram of a single source, single feeder substation with the minimum equipment used. 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 power from main bus was fed into a 20mva transformer which. Pdf classification of substation singleline diagrams based. Section 3 is the simulation of single line diagram of 2 kv substation in etap based upon practical data. In the right corner of the image, we can see a sld of 11kv to 400 v step down. Jun 20, 2018 single line diagram33kv11kv substation this is the easy way to understand the working of substation. 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. Section 4 is the load flow analysis of the substation. Single line diagrams and iec 61850 process bus eep.
It is designed to interactively model, monitor, and manage electrical networks as well as execute simulation scenarios and analyze their results in a simple and intuitive manner. The design of the entire substation was made keeping in mind the most basic requirements of a proper substation including the civil and domestic requirements. Single line diagrams are useful in planning a substation layout. The single line diagram of the substation is simulated in etap based upon actual data and it is seen that 2301 10 kv feeder bus there i s under voltage 2. Jan 15, 2019 the values of impedances and reactances in the impedance and reactance are found from the data given in single line diagram. The software configurations that can be downloaded to the device are of two types. The one line diagram is a userfriendly interface to create and manage the network database used for schematic network visualization. Single line diagram of a power system ee power school. Medium voltage products technical guide the mvlv transformer. The main function of the substation is to collect the energy. 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.
Figure 1 protection engineer setting abbs relays in power substation photo. It can then be completed with the help of a cad tool. In selecting the single line diagram for a substation its requirements from the point of view of the following should be considered. Pdf power flow analysis of 230110 kv substation using etap. Single line diagram of 3311 kv jampaijala for tender purpose only.
Pdf this paper proposes three approaches to classify substation singleline diagrams so it can be used in a power distribution network expansion. Doc user manual page 7 colors of the single line diagram to makethis documenteasier to consult, the images of the singleline diagram have where possible been created on a white background, thus with the same color configuration as that predefined in the program. Electrical design of 233kv substation line diagram. Electrical design software electrical cad toolset free. Aug 01, 2014 line diagrams are required to be submitted at prequalification under rule 3. Electrical oneline diagram trace software international. Pdf classification of substation singleline diagrams. The connection of the substation is divided as incoming or power feeder connection. Classification of substation singleline diagrams based on fuzzy systems. Single line diagram of gis substation ask for details.
Smartdraws electrical symbols connect to circuit lines automatically. Typical electrical drawing symbols and conventions. Its emphasis is on communicating the functions of the power equipment and the associated protection and control system. A substation is part of a system and not an entity to itself. In selecting the singleline diagram for a substation its requirements from the point of view of the following should be considered. Illustrative example of a sample single line diagram gov. Follow report by twinkle101555 4 weeks ago log in to add a comment. Location of the surrounding loads in the layout of both the current and the. The subtransmission circuit enters the substation through a primary disconnect switch used principally to. In single line representation of substation the electrical components such as power transformers, incoming and outgoing lines, busbars, switching and protecting equipments, are represented by standard symbols and their interconnections between them are shown by lines. All rus borrowers rus electric staff effective date. Distribution voltages are typically medium voltage, between 2. Introduction usually, the classification of substation design is divided into three ways.
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