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www.lsis.bizGas Insulated Switchgear up to 36kV

Suitable for large current carryGas Insulated Switchgear up to 36kVFunction of large-current carry and highshort-circuit capacityMinimized space requirement for installationEasy to control and operate by the integrationof control unitContents Features6 Technical Data7 Construction of GIS8 Transport & Installation14Commission & Maintenance2Ｉ Quality Assurance15 Research & Development16 Solid Insulated Switchgear18

hgearGas Insulated Switchgears from 25.8KV to 362KVwith advanced technology of LS Industrial SystemsHighReliabilityLSIS GIS complies with the latest international standards &requirement by performing global test laboratory within therange from 25.8kV to 362kV. LSIS scompact size GIS iscomparable with other manufactures within the same ratingand we can provide economical & feasible solutions for thecustomers who has only limited space for GIS.EsayInstallation &MaintenanceGIS Line - up25.8/36kV72.5kV145/170kV245kV362kVLSIS Gas Insulated Switchgears are suitable for the power plants and substations that require greater capacityand performance which need the large-current carry and high short-circuit capacity. Our GIS also feature theminimized space requirement for installation and the maximized convenience in control and operation by theintegration of control unit.Ｉ3

Leading Solution LSISGas Insulated Switching Mechanism to performlarge-current carry and 40kA high short-circuitinterruption 40kA, 3150A high performance Specially designed VacuumInterrupter Analysis and design of temperatureflow for large current Optimum design of insulation Compact mechanism with highperformance Compact Insulator Simplified main circuit partLSIS's Gas Insulated Switchgears meet the electric systems requirements of increasing capacityaccording to expansion of consumers and large plants.The design and consititution of our GIS offers high reliability, safety and convenience in such acompact size LSIS adopts procedures for production, delivery and technical service which are fullyenvironment-friendly under control of ISO 14001 for our future generation, which include minimizingthe user of SF6 gas.4Ｉ

Safety snd high reliability InsulationThanks to our advanced electric field analysis and optimum insulation design we can offer 30%higher performance than standard in short-duration power-frequency and lightning impulsewithstand voltage. Thermal currentOur technology of the heat analysis according to interrupting part arrangement and the using ofhigh quality materials have secured 15 to 25% of allowance at the temperature rising test. Mechanical enduranceCB secures M2 class (10000 operations)DS and ES secure M1 class (2000 operations)Ｉ5

GISGas InsulatedSwitchgearFeatures of UnitsCB Unit Vacuum Interrupter, VI designed specially for medium voltageGIS with large capacity is adopted. Energy loss is minimized thanks to the optimum design of thelinkage between the outside operator and the inside CB.DS/ES Unit The 3-position switch is combination of disconnector andearthing switch Put together, which eliminates the need for an additionalmechanical interlock between the disconnector and earthingswitch, and also electric interlock.Gas Monitoring Gas monitor which includes gas pressure gauge and pressureswitch is installed at each gas compartment. Minitoring system for alarm signal and interruption in case of gaspressure drops below the certain line.GIS Control Panel LSIS's Digital Protective Relay adopted Easy to monitor each unit, convenient to oprate and safe tocontrol Installed on the front of GIS to enables to access- Control switches for CB, DS/ES- Selection switch of Remote/Local- Open/close indicator- Fault indicator- Auxiliary relay- Mimic diagramSF6 가스절연개폐장치6Ｉ

Gas Insulated Switchgear (GIS)Technical DataRatingsItemUnitkV, rmsRated voltageGESG 0243-NCGESG 0222-NCRated short-time withstand current (3sec.) kA, rmsGESG 0342-NC25.825.825.825.83636252540404040Rated normal currentA, uencykV, rms707070707070voltageRated lightning impulsekV, peak150150150150170170Rated frequencyHz606050/6050/6050/6050/60Rated short-circuit breaking currentkA, rms252540404040Rated break timeCycle555533Operating orES-MotorMotorMotorMotorMotorMotorMotor spring Motor spring Motor spring Motor spring Motor spring Motor springRated gas pressure(kgf/cm2 G)0.50.51.01.01.01.0Minimum gas pressure(kgf/cm2 G)0.350.350.80.80.70.7Applicable standards-ES 5925-0001IEC-62271-1/100/102, 200Single Line Diagram (25.8kV 40kA Double-Bus)1 BUS2 FEEDERVCB25.8kVPTDS2/ES2 8kVBUS TIEBUS SECTION 2DS1/ES125.8kV40kADS2/ES225.8kV40kAVCB25.8kVBUS SECTION 1Ｉ7

GISGas InsulatedSwitchgearConstruction of 25.8kV 25kAConstruction & Single Line Diagram64 15 73142121011113589NOName1 Operating mechanism for CB8ＩNOName9 Current Transformer2Operating mechanism for 3 position switch 10Rupture disk3Vacuum interrupter11Absorbent43 position switch12Local control panel5Insulating spacer13DS/ES unit6Main bus14Circuit breaker7Earth bushing15Earth bus bar8Cable16

Gas Insulated Switchgear (GIS)Main/Feeder Circuit2,150600600Main/Feeder (2,000A/600A)A BUS1,1672,500640B BUSSide ViewFront ViewOne-Line DiagramBus Section Circuit2,150900900Bus Section (2,000A)A BUS1,1672,500640B BUSSide ViewFront ViewOne-Line DiagramBus Tie Circuit2,150600Bus Tie (2,000A)A BUS1,1672,500640B BUSSide ViewFront ViewOne-Line DiagramＩ9

GISGas InsulatedSwitchgearConstruction of 25.8kV 40kAConstruction & Single Line Diagram471412992101363To GIBA18NOName1 Operating mechanism for CB10ＩNOName8 Current Transformer2Operating mechanism for 3 position switch9Rupture disk3Vacuum interrupter10Absorbent43 position switch11Local control panel5Insulating spacer12DS/ES unit6Main bus13Circuit breaker7Earth bushing14Earth bus bar

Gas Insulated Switchgear (GIS)Main CircuitMain (3,150A)7002,095A BUS1,5502,530640B BUSSide ViewFront ViewOne-Line DiagramFeeder Circuit2,095700Feeder (1,250A)A BUS1,5502,530640B BUSSide ViewFront ViewOne-Line DiagramBus Section Circuit2,095700700Bus Section (3,150A)A BUS1,5502,530640B BUSSide ViewFront ViewOne-Line DiagramBus Tie Circuit2,095700Bus Tie (3,150A)A BUS1,5502,530640B BUSSide ViewFront ViewOne-Line DiagramＩ 11

GISGas InsulatedSwitchgearConstruction of 36kV 40kAConstruction & Single Line Diagram14 71513510211146123A189NOName1 Operating mechanism for CB12ＩNOName9 Current Transformer2Operating mechanism for 3 position switch 10Rupture disk3Vacuum interrupter11Absorbent43 position switch12Local control panel5Insulating spacer13DS/ES unit6Main bus14Circuit breaker7Earth bushing15Earth bus bar8Cable

Gas Insulated Switchgear (GIS)Main Circuit7002,095Main (2,500A)1,5502,530640A BUSB BUSSide ViewFront ViewOne-Line DiagramFeeder Circuit2,095700Feeder (1,250A)1,5502,530640A BUSB BUSSide ViewFront ViewOne-Line DiagramBus Section Circuit2,095700700Bus Section (2,500A)A BUS1,5502,530640B BUSSide ViewFront ViewOne-Line DiagramBus Tie Circuit2,095700Bus Tie (2,500A)A BUS1,5502,530640B BUSSide ViewFront ViewOne-Line DiagramＩ 13

GISGas InsulatedSwitchgearTransport & InstallationCommission & MaintenanceTransportCompact design makes it convenient to deliver GIS to the site.It is possible to tansport even 2 or 3 bays of GIS at a time to reduce time and cost in transportationInstallationModular design makes customers easy & fast installation & extension.Space and work required for installation are the most effective in case of 5-bay installation.Maintenance Warranty period: for 2 years since installation Lifespan: 20 yearsInterval of InspectionInspectionCBDS/ESDevice w/o switchingDailyEvery dayEvery dayEvery dayPeriodicEvery 6 yearEvery 6 year or 2000 operationEvery 6 yearDetailedEvery 12 yearEvery 12 yearEvery 12 yearCommissioningLSIS's PT&T( Power Testing & Technology Institute) is a KOLAS-qualified (Korea Laboratory Accreditation Scheme)accredited testing laboratory that provides a worldwide testing service with a 1600MVA-capacity High Power Laboratory,a High Voltage Laboratory, and a Reliability Testing Laboratory.Its testing has been fully acknowledged and recognized by overseas testing certification bodies, such as KEMA ofNetherlands, UL of America, and CE of the EU for its low voltage testing.Power Testing & Technology Instiute Power Testing & Technology Institute14Ｉ High Voltage Test Laboratory

Gas Insulated Switchgear (GIS)Quality AssuranceThrough ERP (Enterprise Resource Planning) program and QualitySystem(ISO 9001), LSIS strictly control the quality of GIS andmaintain best delivery service to the customers.LSIS adopts procedures for production, delivery and technical servicewhich are fully environment-friendly under control of ISO 14001 forour future generation.CertificationsＩ 15

GISGas InsulatedSwitchgearResearch & DevelopmentLSIS is accredited for leading research and development in the country, and ItsR&D Center focuses on overall research and development activities related to powersupply systems such as low and high voltage equipment as well as integrated digitalnetworks, automatic switchboards and integrated power protection.We continues to invest in developing the best GIS product for our customersworldwide. Each unit is optimized and designed from the advanced technologiessuch as 3D electric field analysis, arc diagnosis, multiphysics analysis, staticsanalysis, fatigue & vibration analysis, structure and temperature analysis to producehighest quality of GIS.Interruption mizedGIS designtechnologyMultiphysics analysis3D electric field analysisMechanismdesignStatic stress analysis16ＩInsulationdesign

Gas Insulated Switchgear (GIS)GISWith compact GISLSIS provide a differentiated valueＩ 17

ReliabilityFeature18Ｉ Eco-friendly epoxy embedded vacuum interrupter(New excellent technology in Korea) Permanent Magnetic Actuator offering high performance Reliability of insulation proven in the test of over-voltage, longservice life, thermal shock and moisture penetrationEconomic and practicalSafety SF6 Gas free eco-friendly devices Compact and light weight Flexibility in the system organization module type Phase isolation & Earth of outer surface by metalizing Prevention of miss-operation by preparing for electrical interlocking Easy to handle by modulation of each component

25.8kV Solid Insulated SwitchgearSF6 Gas Insulated Switchgear SF6 gas insulation VI with gas insulation Electric spring mechanism Assembly of welding tanks Conventional CT/PTSolid Insulated Switchgear Solid insulation with epoxy resin Epoxy embedded VI PMA mechanism Modulation of components ECT/EVT, conventional CT/PTavailableAdvanced componentEmbeded VI (NET registered technology)Disconnecting & Earthing S/W Non-cushion combination technology Interfacing technology between VI and Epoxy resin Design technology of embedded VI shield Epoxy slideing technology in DS/ES partsPMA Mechanism Suitable for VI charistics Stable and intelligent characterictics of operation Maintenance-free, No wearing, High reliabilityＩ 19