Substation is integral part of a power system and form important links between the generating station, transmission systems, distribution systems and the load points. Presentation upptcl 400kv substation motiram adda, gorakhpur free download as powerpoint presentation. These feeders serve a large number of premises and usually contain many branches. Customer substation manual 6272019 preface page 8 of 82 010. Protection communication control monitoring tools one of the main advantages of abb substation automation is that it may include building blocks from various product ranges and generations. 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. Substation substation a station in the power transmission system at which electric power is transformed to a conveniently used form. If you continue browsing the site, you agree to the use of cookies on this website. Eps was responsible for the design of the substation. Read about design of substation earthing system here. Substations equipment maintenance electric power systems.
Maintain a record of the most current readings and observations to ensure that all parts, from the main transformer, coolingheating systems, bushings, and tap changer tanks, to. Since i was in uni i am strongly interesting in substation and what its all about and i want to know more about bus bar and circuit breaker and insulator. A substation standards control cable color code identification 68. In this article, i will share 18 design studies or calculations that will set you up to create a beautiful substation. Supply in the package materials have been classified as under i. 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. Substation maintenance inspection checklist use this substation maintenance inspection checklist to conduct a detailed investigation of each substations equipment. Mrss stands for main receiving substation power plants. The red bluff substation project near desert center, in eastern riverside county, will help us connect first solars desert sunlight solar farm, and future renewablepower projects in the area, to our transmission grid. The substation receives electrical energy directly from generating stations through incoming power supply lines while it delivers electricity to the consumers. Surge arresters or lightning arresters discharge the over voltage surges to earth and protect the equipment insulation from switching surges and lightning surges. For a detailed outline of maintaining substations and related switchgear assemblies, follow nfpa standard 70b, recommended practice for electrical equipment maintenance, chapter 8.
What is distribution substation and its 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. Mrs main receiving substation transformer relay scribd. The substation earthing system comprises of a grid earth mat formed by a horizontal buried conductors. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area. Substation construction manual page 2 of 57 reference ni000401r122 ver 3 ergon energy corporation limited abn 50 087 646 062 ergon energy queensland pty ltd abn 11 121 177 802 4. Unesco eolss sample chapters electrical energy systems components and substations for electrical transmission and distribution systems b. It also is used to change ac voltages from one level to another, andor change alternating current to direct current or direct current to alternating current. That standard explains that in transforming primary power, substations may provide system protection. The receiving inspector will then inspect the material at point of delivery. The substation consisted of two 14 mva transformers, two 8 kv breakers and nine 12. The items shall be clearly marked awaiting receiving inspection do not use to prevent unauthorized use until receiving inspection acceptance occurs.
Components and substations for electrical transmission and. How is main receiving substation power plants abbreviated. A substation is a part of an electrical generation, transmission, and distribution system. The main considerations taking into account during the design process are. Their main functions are to receive energy transmitted at high voltage from the generating stations, reduce the voltage to a value appropriate for local distribution. The station may consist of transformers, switches, circuit breakers and other auxilliary equipment. Ensure safety to personnel in substations against electrical shocks. The facility takes up a whole city block along denny way and features a community center, interpretive exhibits, a dog park, and public art the substation was proposed in the early 2000s, during redevelopment of south lake union into a high. The electrical substation design is a complex method with full of engineer planning. The functions of grounding systems or earth mat in include. Appendix c table of contents substation drawings singer substation drawing no.
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. Basic substation configurations and the components avo training. Substations a substation is a highvoltage electric system facility. The abb substation automation concept has five corner stones. What is a electrical substation definition, layout, and. Surge arresters are generally connected between phase conductor and ground.
Substation design volume ii physical layout instructor. A distribution substation transfers power from the transmission system to the. What is the main and most important purpose of a reactor. Distribution substation automation in smart grid 65 substation automation sa can provide integral functions to the distribution grid automation.
Main tasks associated with major substations in the transmission and ditribution system include following. Safari substation projects in progress reliability. Mrss is defined as main receiving substation power plants very rarely. Via inplace elevation of substation structures and equipment pdf. 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. The fence is connected to a separate grounding conductor. Maintenance and operation of an electrical substation of. Tender document for noncomprehensive annual operation. A main station for use in a telecommunication system adapted for communication at a predetermined bit rate with substations within the system via a transmission channel on the basis of a multiple access protocol, which channel is at least partially common to the substations, the main station comprising receiving means for receiving ranging. It is used to switch generators, equipment, and circuits or lines in and out of a system. Distribution feeders transport power from the distribution substations to the end consumers premises. Red bluff projects in progress reliability about us. Unit rate amount 1 3311kv 5 mva power transformer as per the technical specifications of annexureii. Substation configuration reliability 1 reliability of substation configurations daniel nack, iowa state university, 2005 introduction while one of the strongest points in a power system is the electric substation, it still contains what could be described as weak points or.
Stones are provided in the substation to a to avoid fire accident by draining oil from transformer if leaks b to avoid growing of weeds and plants c to provide insulation d all the above. Design guide for rural substations usda rural development. The following factors are to be considered in selection the site of an outdoor type substation. The grounding system in substation is very important. Us5579321a telecommunication system and a main station. Inspection area, receiving will deliver the paper work to the receiving inspector, noting location of the items.
A mini project report on operation and maintenance of 2202kv substation submitted in partial fulfillment for the award of the degree of bachelor of technology in electrical and electronics engineering submitted by v. Mrs main receiving substation free download as word doc. Substation elements and the system earthing are considered. The electrical substation does not have a single circuit but is composed of numerous outgoing and incoming circuits which are connected to a busbar i. Pdf maintenance and operation of an electrical substation of 220. Substation equipment an overview sciencedirect topics. In 1980 he was awarded the national prize for his contribution to development of 750 kv ac. Power substation design calculations a checklist of 18. The denny substation is an electrical substation located in the south lake union neighborhood of seattle, washington, and operated by seattle city light. Bus bar arrangements such as single bus, double bus, double bus with double breaker, main and transfer bus schemes are explained with sketches.
The following current and former members of the substation subcommittee of the nreca. The input for a distribution substation is typically at least two transmission or subtransmission lines. Its main function is to receive energy transmitted at high voltage from the generating station, by. It is uneconomical to directly connect electricity consumers to the main. Substation maintenance inspection checklist fulcrum. Main tasks associated with major substations in the transmission and. Tikhodeev encyclopedia of life support systems eolss in 1990. B substation standards typical power circuit breaker wiring diagram sh 2 of 3 70. Main tasks associated with major substations in the. Owners supply materials osm 3311 kv power transformers, station 330. If both the main feeder and t2 face a power cut, the standby emergency diesel generator dg sets of total 42 mva capacity comes online to supply power seamlessly to the essential loads.
The power transformer, circuit breaker, busbar, insulator, lightning arrester are the main components of an electrical substation. In a substation surge arrester is located at the starting of the substation as seen from incoming transmission lines and is the first equipment of the substation. Receive a 15% discount on these courses if you register. To ensure safety and compliance with local building standards, sce has been working in conjunction with the city of irvine to bring this important project on line.
Provide for no voltage closing for receiving end breakers and sycnhronosing. What does it take to design a masterpiece of a substation. Electrical substation components, workings and their functions. Presentation upptcl 400kv substation motiram adda, gorakhpur273010.
In a substation surge arrester is located at the starting of the substation as seen from incoming transmission lines and is the first equipment of. Guidelines for substation and power distribution systems. Substation earthing system grounding system earthing mat. Distribution voltages are typically medium voltage, between 2. High performance and total quality are the major requirements for each building block. Factors that govern substation layout are described. 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. For distribution network ring main busbar scheme is employed. B substation standards typical power circuit breaker wiring diagram sh 1 of 3 69. Prepare for your substation electrician job interview with our 15 interview questions. At receiving station, the level of voltage reduced by stepdown transformers up to.
For lightly loaded substations connected to the receivingend of long, highvoltage, transmission lines, the voltage may become excessively high due to the ferranti effect. The safari substation is necessary to ensure that sce can continue to provide reliable service in the area. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Power evacuation, main single line diagram, grid interconnection.
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