Best practices and considerations wednesday, january 31, 2018 featuring a waterfront substation site visit tuesday, january 30, 2018. The portfolio includes gis solutions from 60 to 800 kv, along with hybrid, mobile and digital gis solutions, gas insulated lines and other secondary products to maximize switchgear and network. Gas insulated substation definitions and basics course no. By choosing gis, instead of ais, air insulated switchgear, edf en canada was able to reduce the footprint of the substation by more than 75 percent, in turn reducing the amount of land required for the substation.
Gis technology is typically of modular design and filled with a minimum of sf6. Presented paper refers to service continuity of gasinsulated substations, a topic which is also dealt in annex f of iec international standard no. A space of gis as described in iec 62271203 as part of a gas isolated metal cased switchgear, is completely closed except for gaps needed for interconnection. Ge provides a full range of gasinsulated substations gis for utilities and industries worldwide. Gasinsulated substations gis have been used in power systems over the last three decades because of their high reliability, easy maintenance, small ground space requirement, etc. It is one of the cashew processing hubs in kollam city. The basic insulation level bil required for a gas insulated substation gis is different from that of the conventional substation because of certain unique properties of the former. Jan 31, 2008 conventional substations using atmospheric air as the main dielectric cannot satisfy these requirements, but totally enclosed substations using sulphur hexafluoride sf6 gas insulation that are also known as gas insulated substations gis. Gas insulated substation electrical substation insulator. Extreme low emissions protect the environment stateo eart design gas compartment axial direction. This book provides an overview on the particular development steps of gas insulated highvoltage switchgear, and is based on the information given with the. Abb is the pioneer in gis technology with over 45 years of proven technology for complex.
Experimental study of fast transient currents in gas. Sf6 gas superior dielectric properties used at moderate pressure for phase to phase and phase to ground insulation preferred for voltage ratings of 72. Abb to strengthen indonesias power infrastructure and boost electricity supply. The clearance required for phase to phase and phase to ground for all equipment is. Gis there are two terms presented in iec gas insulated switchgear and ieee gas insulated substations. Request pdf experimental study of fast transient currents in gas insulated substation the increasing demand in transmitting electrical energy at very high voltages with low transmission losses. A gas insulated substation gis is a high voltage substation in which the major conducting structures are contained within a sealed environment with a dielectric gas known as sf6, or sulfur hexafluoride gas as the insulating medium.
Gasinsulated substation article about gasinsulated. The differences between air insulated substation engineering and gas insulated substation engineering are vast. Operation and maintenance of a gas insulated substation. Gasinsulated metalenclosed switchgear for rated voltages above 52 kv 092011 orequired leakage rate gas insulated substation ppt pdf presentation gas insulated substations gis is a compact,multicomponent assembly enclosed in a ground metallic housing in which the primary insulating medium is compressed sulphur hexafluoride sf6 gas. The sf6 gas insulated metal enclosed switchgear shall be totally safe against inadvertent touch of any of its live constituent parts.
This course provides an brief introductory overview of gis or gas insulated substations. Lsis who has been a leader in electricity and automation. The south america gas insulated substation market region is expected to witness a cagr growth rate of 16. Think you know what a gas insulated substation gis is. There are five major considerations in the differences between the two high voltage substations. Sub stationsair insulated substations linkedin slideshare. Gis with conventional air insulated substation ais. They will compare substation safety and security using ais vs. Gas insulated substation installation ced engineering. Ageing of the system impact on planning of the working. Pdf presented paper refers to service continuity of gasinsulated substations, a topic which is also dealt in annex f of iec international standard. Economics between conventional and gas insulated substation.
In gas insulated substation the highvoltage conductors, circuit breaker interrupters, switches, current transformers, voltage transformers and lightning arresters. Substations play a crucial role in electricity distribution infrastructures as a part of the transmission and distribution systems, performing several core functions such as the transformation of voltage from high to low, or vice versa. Urban supply systems combining gis technology and hv cable are safe, re. Ge provides a full range of gas insulated substations gis for utilities and industries worldwide.
A limited and isolated project site made space an important issue. Gas insulated substation gis advantages disadvantages. Zurich, switzerland, june, 1, 2016 substation extensions for pln to provide reliable power for java, the worlds most populated island and. Abb to strengthen indonesias power infrastructure and.
Gas insulated substations conference 2018 in washington dc. Scribd is the worlds largest social reading and publishing site. Gas insulated substation definitions and basics cedengineering. Ayathil is a neighbourhood in vadakkevila zone of kollam city, kerala, india. It will address regulatory, technical and business considerations for gis. Comparison of gis and ais systems for urban supply networks. Only sf6 insulated switchgear is able to fulfill these requirements. This article is an introduction to gasinsulated substations. Gasinsulated substation provides a solution to the space problem. Due to the gas enclosed design, gis is the most suitable. Abb is the worlds leading supplier of airinsulated and gasinsulated switchgear, and hybrid substations. Increase in demand for energy efficient power generation system. Sulphur hexaflouride sf6 gas the primary insulating medium.
The portfolio includes gis solutions from 60 to 800 kv, along with secondary products to maximize switchgear and network operation. The author in his paper has made comparison of gas insulated substation. Distribution voltages are typically medium voltage, between 2. Tom antonucci for the benefit of ieee, particularly the student members, with an interest to power systems. Several crucial terms are for better understanding of the presented material. Gas insulated switchgear is used in industrial areas to fulfil highenergy demands by space saving design with a minimum of cost. An overview on gis gas insulated substation engineering ieee foothill society pes chapter and ieee pes student chapter, cal poly pomona are pleased to sponsor a talk on the topic, an overview of gis substation engineering, by mr.
Gha, gasinsulated switchgear, gives reliability, arc. Kerala state cashew development corporation limited has a factory there. Gas insulated substation market 2025 by types, application. Ge designs, manufactures, installs and services a full range of stateoftheart gas insulated substations gis for utilities and industries worldwide. Gasinsulated highvoltage switchgear gis is a compact metal. Presented paper refers to service continuity of gas insulated substations, a topic which is also dealt in annex f of iec international standard no. Iec 62271203 highvoltage switchgear and controlgear part 203.
The metalenclosed gas insulated switchgear inherently follows the criteria for new substation design and offers a higher reliability and flexibility than other solutions. Due to the gas enclosed design, gis is the most suitable solution for indoor and underground substations. Stepping down the voltage from transmission to the distribution level at the substations located near the actual consumers not only yields economic advantages, but also ensures reliable power supply. Gas insulated substation uses sulfur hexafluoride sf6 gas which has a superior dielectric properties used at moderate pressure for phase to phase and phase to ground insulation. Introduction to gas insulated substations switchgears gis. Ge designs, manufactures, installs and services a full range of stateoftheart gasinsulated substations gis for utilities and industries worldwide. It is the 36th ward in kollam municipal corporation.
The portfolio includes gis solutions from 60 to 800 kv, along with hybrid, mobile and digital gis solutions, gasinsulated lines and other secondary products to maximize switchgear and network. The increase in demand for electricity and the growing energy density in metropolitan cities have made it necessary to extend the existing high voltage network right up to the consumer. Gas insulated substation free download as powerpoint presentation. An introduction best practices and considerations monday, january 29, 2018 postconference workshop gis commissioning. Gas insulated substations transmission distribution. Pdf gasinsulated substation service continuity researchgate. The xdge gis requires a low level of maintenance throughout the life of the product. Gis is now in widespread use in the electrical power industry, especially in metropolitan areas. The main components, including circuit breakers, disconnectors, earthing. Lsis has been a leader of development of industry and best partner to improve productivity for her customers by supplying reliable and stable energy lsis is producing gis, which is one of the major equipment used in the high voltage substation in densely cities. Companies also elect to use gis because of the increased load and limited space present in the urban areas. A gas insulated substation gis is a high voltage substation in which the major structures are contained in a sealed environment with sulfur hexafluoride gas as the insulating medium. The clearance required for phase to phase and phase to ground for all equipment is much lower than that required in an air insulated substation.
This is a significant change in operating the switchgear with circuit breakers, disconnectors, and switches earth. Gas insulated substation electrical substation scribd. A typical gas insulated substation is shown in fig. Often, building new substations or increasing capacity is. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area. With gis experience spanning 50 years across a wide range of industries and applications, ge is a leader in the. Gas insulated substations euci conference 2020 in anaheim. This course will provide an indepth introduction to gas insulated substations. Gas insulated substations gis is a compact,multicomponent assembly enclosed in a ground metallic housing in which the primary insulating medium is compressed sulphur hexafluoride sf6 gas. Gas insulated substations use sulphur hexa fluoridesf6 gas which has superior dielectric properties.
Gis technology originated in japan, where there was a substantial need to develop technology to make substations as compact as possible. Gas insulated substation market industry analysis, share. A gas tight barrier insulator in switchgear serve for the separation of gas compartments and prevents neighbouring switchgear parts from being affected during maintenance. Gas insulated transformer use sf6 gas as the insulating and cooling medium instead of insulating oil. The input for a distribution substation is typically at least two transmission or subtransmission lines. With the use of sf6 the modern technology the worlds first sf6 highvoltage gasinsulated. Jan 02, 2014 gas insulated substation uses sulfur hexafluoride sf6 gas which has a superior dielectric properties used at moderate pressure for phase to phase and phase to ground insulation. The speakers will discuss reliability and system planning implications for gas insulated substations. Sf6 gas recovery 34 and 35 sm6 air insulated switchgear 70 supply transformer substation 56 and 65 transformers 56, 74 and 92 vavahvxa vacuum circuitbreakers 64 vacuum circuitbreakers 63, 64 and 68 vamp protection 81, 83, 85, 92, 98, 99 and 100 vampset 100 w310 brio 124 wi gas insulated switchgear 58 ws gas insulated switchgear. Faced with increasing demands for reliability, improved aesthetics and security, the adoption of gas insulated substations gis by north american utilities is rapidly increasing. Gas insulated substation gis ieee conference publication. Practical and theoretical aspects are handled by acknowledged gis experts who have been involved with the technology from the start. Iv general technical specification for 220kv sf6 gas insulated metal enclosed switchgear on photo. Abb library is a web tool for searching for documents related to abb products and services.
Installation, maintenance, and end of life of a gas. It should be designed for indoor application with meteorological conditions at site winter 3c to 14 c and summer 31 c to 46 c, seismic zone. Gas insulated substations is an allinclusive reference guide to gas insulated substations gis which takes account of its basic principles, technology, application, design specification, testing and ownership issues. Gas insulated substations transmission distribution systems. The 20 chapters are written for engineers and present full overviews of each topic, with lists of further references. A major difference between conventional air insulated substations ais and the gas insulated substations gis is that the sf6 gas insulated electrical components are placed within an earthed, pressurized metallic container.
Gas insulated metalenclosed switchgear for rated voltages above 52 kv 092011 orequired leakage rate gas compartment tt f th td i 01% t t. It is ideal in dense urban areas where land for new facilities is limited and only available at prohibitive cost. Practical and theoretical aspects are handled by acknowledged gis experts who have been involved with the technology from the. Combined with a significantly reduced footprint and sf6 gas insulation, toshiba gis can operate in unconventional indoor spaces while maintaining its. Gis highvoltage gas insulated switchgear substations. This course is based on terms used in ieee and iec regulations. An introduction to gas insulated electrical substations. Gas insulated substation provides a solution to the space problem.
Toshibas gas insulated substation gis is a compact and highly economical substation solution for electric utilities, commercial, and industrial applications in densely populated cities. Gas insulated substations are used where there is space for providing the substation is expensive in large cities and towns 21. An overview on gis gas insulated substation engineering. A major difference between conventional air insulated substations ais and the gas insulated substations gis is that the sf6 gas insulated electrical. The new 500220 kilovolt kv gas insulated substation will dispatch 1. Request free sample pdf gas insulated substation market insights.
1484 1508 594 914 41 363 1138 944 1195 84 890 1100 1036 1143 1265 360 424 811 162 1139 1292 567 124 54 387 1099 1230 986 548 856