220 kv gas insulated sub stations pdf

Sulphur hexaflouride sf6 gas the primary insulating medium. The proposed tl passes through 50 villages belonging to 4 tehsilsfall in the jurisdiction of 3. Hybrid gasinsulated switchgear for networks up to 550 kv in generation, transmission and industrial applications. Insulated gas insulated substation project having at least 3 three nos. The works will consist on integrating new high voltage transformers inside existing substations.

Mobile gas insulated switchgear for temporary and emergency applications. The portfolio includes gis solutions from 60 to 800 kv, along with secondary products to maximize switchgear and network operation. For 220 kv class enclosure shall be single or phase wise separate metallic type. Updated larp of 220 kv lalian grid station and associated transmission lines ix executive summary 1. What is the minimum area required to build a 220kv gas. Gas insulated substation gis also called sf6 gas insulated metalclad switchgear is preferred for. Its a colorless, odorless, nontoxic, liquified gas. A 2202 kv gis substation at jangalpur, district howrah along with. Turnkey 400 kv 220 kv greenfield substation with 5 bays at 400 kv and 7 bays at 220 kv with 2 nos. Pdf maintenance and operation of an electrical substation.

Ge provides a full range of gasinsulated substations gis for utilities and industries worldwide. With gis experience spanning 50 years across a wide range of industries and applications, ge is a leader in the. Evaluation the high voltage gas insulated substations gis. The substation of 220kv66kv 11kv has fifteen outgoing feeders, namely.

Gas insulated switchgear is used in industrial areas to fulfil highenergy demands by space saving design with a. Pdf evaluation the high voltage gas insulated substations gis. Presentation on industrial training in 220kv substation ig nagar, jaipur on the topic operation and maintenance of ehv equipment and trannsmission system. Contractors for the design, construction and commissioning of high voltage gas insulated switchgear gis substations ss. Some substations have their switchyard of gas insulated switchgear gis the substations nominal voltage is 220 kv. Iv general technical specification for 220kv sf6 gas insulated metal enclosed switchgear on photo. Affected family all members of a household residing under one roof and operating as a single economic unit, who are adversely affected by the project, or any of its components. This project is located in tehsil lalian, district chiniot, punjab, pakistan. View latest transmission line tenders in india tender detail. This is showing three of the five 220 kv 66 kv transformers, as well as highvoltage transformer fire barriers, each with a capacity of 150 mva.

The differences between air insulated substation engineering and gas insulated substation engineering are vast. Mobile gasinsulated switchgear for temporary and emergency applications. Gasinsulated switchgear elk14 the modular system for gis, 245 kv. Gas insulated substation mainly used for a power transmission system or a sub station system, of which outgoing bus bar is shortened to reduce consumption of the outgoing bus bar sulfur hexafluoride. A hybrid substation would require less space than conventional ais but more than gis. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Resettlement and rehabilitation plan has been prepared for g2 package consisting of two 220 kv substations in firozepur zirka in mewat district and samain in fatehabad district of haryana. New 2x315 mva, 400 220 kv sub station at saharanpur new 2x315 mva, 400 220 kv sub station at jind new 2x315 mva, 400 220 kv sub station at jaipur south extension of bhiwadi 400 220 kv sub station 1x315 mva 400 220 kv transformer extension of gurgaon 400 220 kv gas insulated sub station. Ais, gas insulated substations gis or hybrid substations. This substation is constructed using steel lattice structures to support strain bus wires and apparatus.

Gis technology originated in japan, where there was a substantial need to develop technology to make substations as compact as possible. The connection to the surrounding 110kv network is provided by three cables run from the nearest hv substation to the main substation of the urban hv network. The gis ss will have the nominal voltage of 220 kv. The connection to the surrounding 110 kv network is provided by three cables run from the nearest hv substation to the main substation of the urban hv network. 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.

A report on trip to undi 220233kv grid substation bhimavaram 08. Introduction to gas insulated substations switchgears gis. A mini project report on operation and maintenance of 220 2kv substation submitted in partial fulfillment for the award of the degree of bachelor of technology in electrical and electronics engineering submitted by v. Contractors for the design, construction and commissioning of high voltage air insulated switchgear ais substations ss. Mar 21, 2018 gas insulated substation gis vs air insulated substation ais for urban and rural areas duration. Pdf analysis and calculation of very fast transient over voltages. Gasinsulated substation gis installations shall generally be preferred to. Mega plus 2kv substation gas insulated transformer youtube. The 220 kv gis switchgear shall be of double bus bar design having. Siemens transmission products presentation digital asset.

This larp has been prepared for the sub project of 220 kv lalian grid station and associated transmission line of 6 km, financed by adb under tranche4 of mff i, pteip i. The bus bars shall be sub divided into compartments including the associated bus bar disconnector. Central electricity regulatory commission new delhi petition. Abb substations with gasinsulated switchgear gis are unmatched when it.

Resettlement and rehabilitation plan has been prepared for g2 package consisting of two 220 kv sub stations in firozepur zirka in mewat district and samain in fatehabad district of haryana. The report is prepared for the project in compliance with the environment andsocial policy and procedures espp of the hvpnl. Pgcil, new delhi 400220 kv gis substation with central. The study evaluates the impact of the two technologies on 18 environmental indicators.

Sf6 gas superior dielectric properties used at moderate pressure for phase to phase and phase to ground insulation preferred for voltage ratings of 72. The transient over voltages are generated in gas insulated substations gis during. Pteip tranche4larp of 220 kv chakdara subproject ix executive summary 1. Pdf estimation of transient over voltages in gas insulated. The author strongly recommends that at 500 kv only gis should be used while at 220 kv and 2 kv their selection should be based on economic viability of the sub station compared with the conventional outdoor grid station. In this project, the four new stateoftheart 22066 kv gas insulated substations built at drass, kargil, khaltsi and leh will help to ensure 24. All associated works with the design, construction and commissioning will form part of this turnkey epc project. Gis highvoltage gas insulated switchgear substations. This main substation is configured as a double busbar system, allowing maintenance to.

The most important of any substation is the grounding earthing system of the instruments, transformers etc. Between the generating station and consumer, electric power may flow through several substations at different voltage levels. In this evaluation three flashovers in 220 kv switchgear, the cause for. While the substation at faridabad is upgradation from the existing 66 kv to a 220 kv substation, the 66 kv substation at panchkula is a new substation.

Ges gasiinsulated lines gil meet the challenges of electrical networks up to 800 kv for multiple applications. Gas insulated substation gis also called sf6 gas insulated metalclad switchgear is preferred for 12kv, 36kv, 72. The bus bars shall be subdivided into compartments including the associated bus bar disconnector. Gas insulated substations gis form important network. The report is prepared for the project in compliance with the environment andsocial policy and procedures espp of. 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. Hybrid substation combination of ais and gis are available upto 220kv.

Comparison of gis and ais systems for urban supply networks. A 50 hz electrical substation in melbourne, australia. The sf6 gas insulated metal enclosed switchgear shall be totally safe against inadvertent touch of any of its live constituent parts. 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. India 400220kv gis susbstation with automation english pdf reference case.

Mega plus 2kv substation gas insulated transformer. New 2x315 mva, 400220 kv substation at saharanpur new 2x315 mva, 400220 kv substation at jind new 2x315 mva, 400220 kv substation at jaipur south extension of bhiwadi 400220 kv substation 1x315 mva 400220 kv transformer extension of gurgaon 400220 kv gas insulated substation. With your download, get the 23 best papers relevant to this one, including 17 top related papers. Airinsulated substations up to 800 kv digital asset management. Insulated gas insulated sub station project having at least 3 three nos. A substation is a part of an electrical generation, transmission, and distribution system. The author strongly recommends that at 500 kv only gis should be used while at 220 kv and 2 kv their selection should be based on economic viability of the substation compared with the conventional outdoor grid station. The work covered under this package is for construction of substation on turnkey. Evaluation the high voltage gas insulated substations gis based on flashovers in the 220 kv switchgears. Gas insulated substation gis vs air insulated substation ais for urban and rural areas duration. Gasinsulated metalenclosed switchgear for rated voltages above 52 kv 092011 orequired leakage rate pdf.

There are five major considerations in the differences between the two high voltage substations. 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. Report on industrial summer training on 220 kv substation. This larp has been prepared for the subproject of 220 kv grid station new chakdara and associated transmission line of 85 km shahi bagh mardan. Ge provides a full range of gas insulated substations gis for utilities and industries worldwide. Environmental impact comparison between a 220 kv gas. This article is an introduction to gas insulated substations. Iec 62271203 highvoltage switchgear and controlgear part 203. This article is an introduction to gasinsulated substations. Ges gas iinsulated lines gil meet the challenges of electrical networks up to 800 kv for multiple applications. Substations structures including equipment structures, gis equipments and associated. Gas insulated substations gis one 220 kv substation in the district of faridabad and another 66 kv substation in panchkula district of haryana.