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</html>";s:4:"text";s:10163:"The greater cost of indoor sub-station prohibits its use. For indoor and outdoor distribution, 4.8 kV through 34.5 kV ... Cypoxy Station Post Insulators deliver real value in substation fuse, switch, and bus applications. 33kV Substation equipment. GIS indoor substation normally More insulation level. Outdoor substation requires less maintenance. With the rapid growth of power grid scale, inspection robot has entered the stage of scale promotion and application in substation, for the outdoor inspection of substation, the functions of routine inspection, meter transcription, automatic storage and comparison analysis, infrared precise temperature measurement, background automatic archiving and analysis are realized. distribution substations in MEA: air insulated outdoor substations (AIS) and gas-insulated substations (GIS) in MEA. 09: Fault Condition: Very easy to clear the fault. Distribution voltages are typically medium voltage, between 2.4 and 33 kV depending on the size of the area served and the practices of the local utility. The input for a distribution substation is typically at least two transmission or subtransmission lines. Outdoor Substation . - GIS substation - AIS substation Distribution Secondary Substations -PE(11/0.415 kV, 22/0.415kV) – Transformer capacity :100kVA, 300kVA, 500kVA, 750kVA, 1MVA, - Indoor substation – Outdoor substation – Pole mounted substation – Compact substation – Underground substation Nowadays the Gas insulated substations (GIS) are gaining popularity due scarcity of sufficient size of land to construct an Air insulated outdoor substation. by the substation, how the system is being operated, what redundancy is required, etc. Substations Customer’s need Rio Light had two old AIS Substations operating in very expensive locations (m² prices!). These substations are divided into different compartments for controlling and metering of devices. Ans : The following factors are to be considered in selection the site of an outdoor type substation :- a) The site should be located closed to the centre of its supply area. Indoor with CBs: Outdoor with Reclosers: 13.2kV Substation equipment. Because of e xcellent properties of SF6 gas such as high dielectric strength, high electronegativity, for EHV substations more than 230kV now a days Indoor Gas Insulated Substations (GIS) are employed in place of AIS substations. One of the key areas is substation insulation.There are two primary substation insulation systems in the world, Gas insulated, and Air insulated substations. 5 An Overview of Gas-Insulated Substations . outdoor locations. In this post, I will discuss the advantage and disadvantages of outdoor electrical substation compared with the indoor substation. Moreover, this turnkey substation is available in two types: bloc and kit. The expensive equipment (Switchgear equipment, Power transformer, & another protective device) are used there. The Lansing Board of Water & Light’s new Central Substation in the city’s historic REO Town neighborhood features a two-sided, 425-square-foot living wall installed with the LiveWall ® Outdoor Living Wall System.Completed in July 2019, the living wall greens up the exterior of the new substation and establishes a visual link to the Scott Sunken Garden. View Answer. 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. Power factor correction substations are generally located at the .....end of a transmission line A. This substation is larger than most as it was meant to distribute higher voltages to other substations. In spite of the disadvantage, outdoor substations are very widely used in the power system. II.1.3. Each piece of equipment is given more than one (1) type. that the cost of high voltage installations employing metal-enclosed SF 6 technology is lower than for conventional outdoor switchgear for rated voltages of 420 kV and above. Utility grade equipment that is tested to IEEE 1613 and IEC 61850-3 uses higher quality components and more expensive design that is required to meet the standards. The disadvantage of GIS gas insulated substation: 1. Extra High Voltage (EHV) Air insulated outdoor switch yard substation design and drawings is our main product for more than last fifteen (15) years. Outdoor Substation: Where voltage beyond 66 kV the equipment of the substation is installed outdoor. Such type of substation is mainly used for the voltage up to 11000 v, but when the surrounding air is contaminated by impurities such as metal corroding gases and fumes, conductive dust, etc., their voltage can be raised up to 33000 V to 66000 v. Download Full PDF Package. Outdoor vs. Indoor Substations Abstract: The development of the outdoor substation vs. the indoor type is an interesting commentary on the adaptability of engineering progress to new fields and the subject is briefly recapitulated in this paper, in line with the developments and application of this branch of transmission work. A typical electrical substation has transformers and various protection hardware (circuit breakers, fuses, and sometimes power factor correction hardware). The construction is more expensive. Outdoor Living Wall Greens Up the New Central Substation and Enhances the Landscape in Lansing, Michigan’s Historic REO Town Grand Rapids, MI. In outdoor and hybrid substations, the occupied area is tremendously reduced by using GIS technology! II.1.4. 11 KV B. Service Conditions: Temperature: 40 degrees C, maximum ambient. Joint Pair Substation At this substation, only the transformer is placed outside, while other equipment is inside the building. 44. READ PAPER. Pole-mounted substation Also a mobile substation is required where there is lack of space for constructing out door substation during any big construction work when consumption of huge power by construction machines is required. line are not insulated hence clearance between them is more. In normal substation the clearances between the phase to phase and phase to ground is very large. View Answer. The original estimated budget was $5.8 million with the final cost being $6.7 million. Installation Costs - GIS is less expensive to install than … Cost: this includes the overall cost of running the substation. The cost will be higher than the normal substations. Capital cost of outdoor substation is ____ than indoor substation of the same rating. Customers requiring shorter overall delivery times and minimal on-site work have been the main drivers for RWW development of containerised outdoor substations. b.) SUBSTATION Mr. D. Suresh Babu Assistant Professor, SVEC, Tirupati SUBSTATION What is a substation… Indoor substation Outdoor substation; Less because all the components are insulated.therefore clearance required between them is less. However the cost of GIS indoor substation is higher compared to AIS substation but it has some benefits which includes high reliability, less space requirement and less maintenance. Altitude: Less than 1,000 feet. Urban and suburban indoor substations may be finished on the outside so as to blend in with other buildings in the area. This is significantly higher for the GIS than for the AIS solution. There are many types of the packaged unit substation, but the most widely used type is 11kV packaged unit substation because of the voltage grade advantage. Indoor Substation. Why can the indoor type substation handle less voltage compared to the outdoor type substations? Why? c) Underground compact substation : concrete The input for a distribution substation is typically at least two transmission or subtransmission lines. Equipment designed for outdoor substation are more costly because outdoor door substation equipment required additional protection from the dirt and dust. Indoor Substation: For voltage up to 11 kV the equipment of the substation is installed in the indoor for. The cost required for the installation of indoor substations is very small. In which of the following substation … Ans : Pole mounted substation is the outdoor type cheapest form of substation for voltages not exceeding 33kV in which the equipments are installed overhead on H-pole or 4-pole structure and electric power is almost distributed in localities through such substation. 72. What is called underground substation ? Advantages of Outdoor Substation (AIS): The kit type substation is delivered in sub-assemblies, which are to … 2. Fault location in indoor type substation is____ A. easy B. difficult C. depend on type of fault D. none of the above. A. low B. high C. same as D. none of the above. More because additional building construction is required. Low capital cost Hifh capital cost Difficult operation Easier operation… In a distribution type substation, the neutral voltage between any phase will not be higher than 230 volts while the voltage of any two phases will be 400 volts. Gas Insulated Substations are used where there is space for providing the substation is expensive in large cities and towns. Fault location in indoor type substation is____ A. easy B. difficult C. depend on type of fault D. none of the above. Pcakged Unit Substation. Heating, Ventilation and Air-Conditioning. In general, both circumstances lead to a considerable cost saving with complete substation projects when SF Whereas for outdoor substations, the installation cost is too high. Demand for substation training courses is at an all-time high, with public-private cloud projects, more than 100 economic zones, and new power plants. that the cost of high voltage installations employing metal-enclosed SF 6 technology is lower than for conventional outdoor switchgear for rated voltages of 420 kV and above. Disconnectors (Isolators) are devices that are generally operated off … 1 Per Unit(reference value) 0.34 Per Unit. 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