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HEAD OFFICE 450, Gongdeok-Dong, Mapo-Gu, Seoul, Korea 121-720 TEL : 82-2-707-7000 R&D CENTER 183, Hogye-Dong, Dongan-Gu, Anyang-Shi, Gyeonggi-Do, Korea 431-080 TEL : 82-31-428-1000 CHANGWON PLANT 454-2, Nae-Dong, Changwon-Shi, Gyeongsangnam-Do, Korea 641-712 TEL : 82-55-268-9114 JOCHIWON PLANT 518, Yungi-ri, Nam-Myeon, Yungi-Gun, Chungnam, Korea 339-823 TEL. 82-41-860-3114 DIRECT CONTACT Switchgear Sales Team TEL : 82-2-707-6257~9 CHANGWON PLANT Switchgear Design Team TEL : 82-55-268-9414~9

Power Systems PU Licensed by SIMOPRIME Medium-Voltage Switchgear

Power & Industrial Systems Performance Group Hyosung Power Systems has been continuously enhancing customer s value since it started its operations in 1962. With core values focused on customer-oriented management, technological innovation and reliable quality, Hyosung Power Systems has built strong customer relationships based on trust and respect over the years. It promises to continue its quest to provide value-added products that enhances industrial productivity while conserving both energy and environment for clients all over the world. Power Systems Performance Unit Licensed by SIEMENS SIMOPRIME Control Panel UHV Power Transformer EHV Power Transformer Distribution Transformer Cast Resin Transformer Gas Circuit Breaker Gas Insulated Switchgear Welding Machine Industrial Machinery Performance Unit Electric Motor Gear Reducer Generator Chemical Process Equipment Industrial Machinery Ropeway CNG Refill Station

Power Systems Performance Unit Hyosung Power Systems strives to enhance the lives of people all over the world while conserving earth s natural resources. With the goal to become a Leading Global Energy Solution Provider, Hyosung will pave the way towards next-generation technology and green energy solutions. CONTENTS 05 07 08 10 12 12 15

SIMOPRIME SIMOPRIME Licensed by SIEMENS Medium-Voltage Switchgear SIMOPRIME can be freely used on GOST standard countries. The certification is valid to 6kV and 10kV systems ISO Certification Siemens has consistent quality standards for all products, processes and manufacturing centres. If this failure happened in your SIMOPRIME, no one would even be hurt.

Leading the World best Main Features of SIMOPRIME SIMOPRIME considers user safety as the top priority. SIMOPRIME meets IAC (Internal Arc Class) AFLR against arc accidents Preventive test against internal Arc accidents provides customers with safety and reliability. Internal Arc Test Guide internal arc to the top Internal arc classified IAC A-FLR Accessibility type A ; (authorized personnel) FLR ; Front, Rear and Lateral (sides) SIMOPRIME is LSC2B-PM type in compliance with IEC 62271-200. SIMOPRIME provides power efficiency of main bus unit and cable unit for maintenance of breaker with the loss of service continuity category 2B, and guarantees safety with perfectly earthed metallic partition. Circuit Breaker Compartment Busbar Compartment Cable Compartment LV Compartment Busbar Cable Metallic and earthed shutters and partitions Safe to touch Licensed by SIEMENS-SIMOPRIME 04/05

SIMOPRIME Main Features of SIMOPRIME SIMOPRIME adopts long-life, high-quality Siemens circuit breaker that requires minimum maintenance. New Sion Type Auxiliary Switch S1 ON Pushbutton OFF Pushbutton Switch Position Indicator 1st Shunt Release Y2 Operating Shaft for the Vacuum interrupters Closing Solenoid Y9 Closing Spring Charged / not Charged Indicator Operating Cycle Counter Closing Spring Position Switch Gear for Charging the Closing Spring Manually Rating Plate SIMOPRIME adopts HYOSUNG s proprietary parts. High-quality HYOSUNG models developed for main parts Option digital relays Make-proof earthing S/W HYOSUNG OEM IEC-compliant CT ProPAC Series SIPROTEC HYOSUNG OEM IEC-compliant PT High-quality surge arrester Sepam Series REF Series Earthing S/W is equipped with the 40kA making test inside the panel in compliance with IEC 62271-102. HYOSUNG OEM CT is designed in compliance with IEC 60044-1, and tested in the Reliability Center. HYOSUNG OEM PT is designed in compliance with IEC 60044-2, and tested in the Reliability Center. Various surge arresters proven in domestic/overseas sites are used to fulfill the needs of the clients. Various types of digital relay are used to meet the demands of the clients. Different relays are applied in accordance with the characteristics of substations, and provide perfect solutions based on HYOSUNG s experience. Special arc detection relays fulfill the needs for high-quality racks.

Leading the World best Specifications of SIMOPRIME Item Model SIMOPRIME 7.2kV SIMOPRIME 12kV SIMOPRIME 15kV SIMOPRIME 17.5kV Rated Voltage (kv) 7.2 12 15 17.5 Rated Current (A) 1250 2500 3600 4000 1250 2500 3600 4000 1250 2500 3600 4000 1250 2500 3600 4000 Rated Breaking Current (ka) 31.5 / 40 31.5 / 40 31.5 / 40 31.5 / 40 Commercial Frequency Withstanding Voltage (kv) 20 28 35 38 Surge Impulse (kv) 75 75 95 95 Withstanding Voltage Frequency (Hz) 50 / 60 50 / 60 50 / 60 50 / 60 Width (mm) 40kA only 800mm 600 600 600 600 Height(mm) Front 2200 2200 2200 2200 Rear 1780 1780 1780 1780 Depth (mm) 1860 1860 1860 1860 External shape *Wall standing type for minimum floor area Wall standing structure for minimum floor area Wall standing structure saves the maintenance cost as it requires minimum floor area in the electricity room. Reduced cost for building and maintenance of substation (only requires 150mm at the rear) Minimum length of 150mm on the sides of SWGR Dimensions Electricity Room layout (ceiling height 2800) For front cable connection Minimum space required for SWGR BCircuit-breaker panel 40kA 1250 A 800 2500 A, 3600 A 800 Disconnector panel 1250 A 800 2500 A, 3600 A 800 Switch-disconnector-fuse panel 12kV 800 Width B 17.5kV 800 Bus sectionalizer / circuit-breaker Panel 1250 A 800 2500 A, 3600 A 800 Bus sectionalizer / bus riser panel 1250 A 800 3600 A 800 Mertering panel 800 Depth T Standard 1860 *31.5kA, Width (B) : 600/800mm, Depth (T): 1860 Licensed by SIEMENS-SIMOPRIME 06/07

SIMOPRIME Structure of SIMOPRIME 7.2kV ~ 17.5kV, ~ 40kA, ~ 3600A 1 2 3 4 5 6 7 8 9 10 13 14 15 16 17 18 22 23 24 11 12 19 20 21 1 Control (LV Compartment) 2 LV Door Lock 3 LPS (Option) 4 Circuit Breaker (CB Compartment) 5 Circuit Breaker Monitoring Window 6 Circuit Breaker Door Lock 7 Circuit Breaker Charging Lever Input Hole 8 Circuit Breaker On/Off Action Input Hole 9 Circuit Breaker Charging Lever Input Hole 10 Door Handle 11 Circuit Breaker Out Control Hole 12 Earthing Switch Handling Hole 13 Pressure Discharge 14 Busbar 15 Insulated Bushing 16 Supporting Insulator 17 Current Transformer 18 Earthing Switch 19 Cable 20 Voltage Transformer 21 Earthing Busbar 22 Circuit Breaker Control Connector 23 Vacuum Interrupter 24 CB Truck A CB Compartment B Busbar Compartment C Cable Compartment D CB Truck E LV compartment

Leading the World best Switching-device compartment All switching operations with high-voltage door closed Pressure relief upwards Panel powder-coated with epoxy resin Shutter operating mechanisms separately for Busbar compartment Connection compartment Metallic, earthed shutters and partitions ensure partition class PM High-voltage door pressure-resistant in the event of internal arcs in the panel Metallic ducts on the side for laying control cables Interlocking between high-voltage door and circuit-breaker truck ensures interlock-based access Option :Test sockets for capacitive voltage detecting system Switching-device compartment to accommodate components for implementing various panel versions with Vacuum circuit-breaker with or without voltage transformers on the truck Disconnector truck Vacuum-contactor truck Metering truck Connection compartment Pressure relief upwards through rear pressure relief duct Suitable for connection of Single-core XLPE cables up to max. 6 x 500mm 2 per phase Three-core XLPE cables up to max. 3 x 300mm 2 per panel Bars made of flat copper with bushings in a floor cover or fully-insulated bars including floor cover Shutters to be opened separately to permit cable testing Earthing busbar Connection from front or rear Option : Pressure-resistant floor cover Use of block-type current transformers Bolted rear covers of the connection compartment provide tool-based access for panels with connection from rear Option :Interlocked high-voltage door and bolted partitions between connection compartment and switching-device compartment provide interlock-based and tool-based access for panels with connection from front Components at the panel connection Coupling electrode for capacitive voltage detecting system Voltage transformers Cast-resin insulated Max. 3 x 1-pole Fixed-mounted, without primary fuses Make-proof earthing switches With manual operating mechanism In addition to standard interlocking of switch/circuit-breaker truck, optionally lockable or with electromagnetic interlock Surge arresters or limiters Surge arresters for protecting the switchgear against external overvoltages Surge limiters for protecting consumers against switching overvoltages Busbar compartment Pressure relief upwards and through rear pressure relief duct Option : Busbar transverse partition between panels Busbars made of flat copper, bolted from panel to panel For rated normal currents up to 3600 A Option : Insulated busbars Bolted rear and top covers provide tool-based access Option : Coupling electrode for capacitive voltage detecting system Option :Possibility of installing the following components Voltage transformers Busbar earthing switch Current transformers in the run of busbars Interlock Interlocking conditions are satisfied according to IEC 62271-200 / VDE 0671-200 Earthing switch can only be operated with circuit-breaker truck in test position Circuit-breaker truck can only be moved with circuitbreaker OPEN and earthing switch OPEN Mechanical coding on the circuit-breaker truck prevents insertion of similar circuitbreaker trucks for lower rated normal currents into panels with higher rated normal currents nterlocking of high-voltage door against circuit-breaker truck The high-voltage door can only be opened when the circuitbreaker truck is in test position Option: Electromagnetic interlocks Low-voltage compartment For accommodation of all protection, control, measuring and metering equipment Partitioned safe-to-touch from the high-voltage part Low-voltage compartment can be removed, bus wires and control cables are plugged in Option:Partition between panels Low-voltage cables Control cables of the panel are flexible and have metallic covers Connection of switching-device truck and panel wiring to low-voltage compartment via 64-pole coded plug connectors Bus wires are pluggable from panel to panel Licensed by SIEMENS-SIMOPRIME 08/09

SIMOPRIME Structure of SIMOPRIME by Type SIMOPRIME VCB Panel SIDE VIEW FRONT VIEW ONE-LINE DIAGRAM SIMOPRIME Disconector Panel 600 SIDE VIEW FRONT VIEW ONE-LINE DIAGRAM SIMOPRIME Vacuum Contactor Panel SIDE VIEW FRONT VIEW ONE-LINE DIAGRAM

Leading the World best SIMOPRIME Bus Sectionaliser Panel SIDE VIEW FRONT VIEW ONE-LINE DIAGRAM SIMOPRIME Metering Panel SIDE VIEW FRONT VIEW ONE-LINE DIAGRAM Licensed by SIEMENS-SIMOPRIME 10/11

SIMOPRIME Design Benefits and features Benefits Saves lives Peace of Mind Increases Productivity Saves Money Features All switching operations including emergency manual operations with high-voltage door closed Interlocking between high-voltage door and switching devices Rack-in, rack-out operations of the circuit-breaker truck with high-voltage door closed Metallic, earthed shutters and partitions, partition class: PM (metallic partition) Internal arc tested design up to 40 ka, 1 s, according to IEC 62271-200, VDE 0671-200 Use of vacuum circuit-breakers Factory-assembled, type-tested switchgear according to IEC 62271-200 Type testing of the circuit-breaker inside the panel Use of standard, world-wide available components Use of maintenance-free vacuum circuit-breakers Quality management according to DIN EN ISO 9001 Design based on global best practice sharing and experience More than 300,000 air-insulated switchgear panels from Siemens in operation world-wide Use of metallic, earthed shutters and partitions between the compartments ensures highest loss of service continuity of the switchgear (LSC2B according to IEC 62271-200) during maintenance Use of maintenance-free vacuum circuit-breakers Use of maintenance-free vacuum circuit-breakers Standards Standards The switchgear complies with the relevant standards and specifications applicable at the time of type tests and conform to the IEC standard. Overview of standards Switchgear SIMOPRIME IEC 62271-1 VDE 0671-1 EN 62271-1 IEC 62271-200 VDE 0671-200 EN 62271-200 Circuit-breaker IEC 62271-100 VDE 0671-100 EN 62271-100 Vacuum contactor IEC 60470 VDE 0670-501 EN 60470 Devices Disconnector and earthing switch IEC 62271-102 VDE 0671-102 EN 62271-102 Degree of Protection- HV HRC fuses IEC 60282 VDE 0670-4 EN 60282 Voltage detecting systems IEC 61243-5 VDE 0682-415 EN 61243-5 - IEC 60529 VDE 0470-1 EN 60529 Insulation - IEC 60071 VDE 0111 EN 60071 Instrument Transformers IEC standard VDE standard EN standard Current transformer IEC 60044-1 VDE 0414-1 EN 60044-1 Voltage Voltage transformer IEC 60044-2 VDE 0414-2 EN 60044-2 Installation - IEC 61936-1 VDE 0101 -

Leading the World best Type of service location The switchgear can be used for indoor installation in accordance with IEC 61936 (Power installations exceeding 1 kv AC) and VDE 0101. Outside lockable electrical service locations at places which are not accessible to the public. Enclosures of switchgear can only be removed with tools. Inside lockable electrical service locations. A lockable electrical service location is a place outdoors or indoors that is reserved exclusively for housing electrical equipment and which is kept under lock and key. Access is restricted to authorized personnel and persons who have been properly instructed in electrical engineering. Untrained or unskilled persons may only enter under the supervision of authorized personnel or properly instructed persons. Table - Dielectric strength Rated voltage (rms value) (kv) 7.2 12 15 17.5 Rated voltage (rms value) (kv) 7.2 12 15 17.5 Rated short-duration power-frequency withstand voltage (rms value) Across isolating distances (kv) 23 32 39 45 Between phases and to earth (kv) 20 28 35 38 Rated lightning impulse withstand voltage (peak value) Across isolating distances (kv) 70 85 105 110 Between phases and to earth (kv) 60 75 95 95 Altitude correction factor (Ka) Altitude correction factor Rated short-dur. power-freq. withstand volt. to be selected for site altitudes>1000m Rated short-duration power-frequency withstand voltage up tow1000m Ka Rated lightning impulse withstand volt. to be selected for site altitudes > 1000m Rated lightning impulse withstand voltage up tow1000m Ka (Example) - 1800msite altitude above sea level - 12kV switchgear rated voltage - 75kV rated lightning impulse withstand voltage - Rated lightning impulse withstand voltage to be selected : 75 kv 1.10 = 82.5 kv Result According to the above table, a switchgear for a rated voltage of 17.5kV is to be selected. Site altitude in m above sea level(m) * For site altitudes above 1000m, the altitude correction factor Ka is recommended, depending on the actual site altitude above sea level. Dielectric strength The dielectric strength is verified by testing the switchgear with rated values of short duration power-frequency withstand voltage and lightning impulse withstand voltage according to IEC 62271-1 / VDE 0671-1 (see table Dielectric strength ) The rated values are referred to sea level and to normal atmospheric conditions (1013 hpa, 20 C, 11g/m 3 humidity in accordance with IEC 60071 / VDE 0111) The dielectric strength decreases with increasing altitude. For site altitudes above 1000 m (above sea level) the standards do not provide any guidelines for the insulation rating. Instead, special arrangements apply to these altitudes. Site altitude - As the altitude increases, the dielectric strength in air decreases due to the decreasing air density. This reduction is permitted up to a site altitude of 1000 m according to IEC and VDE. - For site altitudes above 1000 m, a higher insulation level must be selected. It results from the multiplication of the rated insulation level for 0 to 1000 m with the altitude correction factor Ka. Licensed by SIEMENS-SIMOPRIME 12/13

SIMOPRIME Standards Terms Make-proof earthing switches are earthing switches with short-circuit making capacity according to IEC 62271-102 VDE 0671-102 / EN 62271-102 Internal arc classification Protection of operating personnel by means of tests for verifying the internal arc classification Internal arcing tests must be performed in accordance with IEC 62271-200 / VDE 0671-200 The switchgear complies with criteria 1 to 5 specified in the mentioned standards for the basic version up to 40kA. Definitions of the criteria: - Criterion 1 Correctly secured doors and covers do not open. Limited deformations are accepted. - Criterion 2 No fragmentation of the enclosure. Projection of small parts up to an individual mass of 60g are accepted. - Criterion 3 Arcing does not cause holes in the accessible sides up to a height of 2m. - Criterion 4 Horizontal and vertical indicators do no ignite due to the effect of hot gases. - Criterion 5 The enclosure remains connected to its earthing point. Climate and environmental influences The switchgear may be used, subject to possible additional measures, under the following environmental influences and climate classes: Environmental influences - Natural foreign materials - Chemically active pollutants - Small animals Climate classes - 3K3-3K5 *The climate classes are classified according to IEC 60721-3-3. Current-carrying capacity According to IEC 62271-1 / VDE 0671-1 and IEC 62271-200 / VDE 0671-200 current-carrying capacities refer to the following ambient air temperatures: - Maximum of 24-hourmean + 35 C - Maximum + 40 C The current-carrying capacity of the panels and busbars depends on the ambient air temperature outside the enclosure. To attain the maximum rated normal currents, the panels are provided with natural or forced ventilation. Protection against solid foreign bodies, electric shock and ingress of water According to IEC 62271-200 / IEC 60529 / VDE 0470-1 / VDE 0671-200 SIMOPRIME switchgear fulfills the following degrees of protection. - Enclosure: IP 4X, IP 5X (protection against solid foreign bodies) IP X1, IP X2 (protection against ingress of water) - Compartments: IP 2X (protection against solid foreign bodies) Higher degree of protection for enclosure on request

Leading the World best Control Panels of HYOSUNG ProGIS(C-GIS) ProSWGR Metal Clad Switchgear Low Voltage Metal Enclosed Switchgear Advanced MV GIS with maximum reliability and stability, and minimum installation surface has been developed based on abundant experiences and technical capabilities acquired through contracts with many domestic / overseas clients. ProSWGR is a metal-clad type standard high-voltage switchgear with inner spaces completely separated by partitions. The switchgear supports system operations, such as circuit breaking and monitoring, from the front panel while the door is closed. Metal Clad Switchgear is selfdesigned and developed by HYOSUNG and have the high reliability & performance. Low Voltage Switchgear will provide safe power distribution with handy operation, easy to installation & maintenance. Motor Control Center Supervisory & Control Panel IPB (Isolated Phase Bus) NSPB(Non Segregated Phase Bus) Motor Control Center is designed with operator s safety and easy to handling. It will provide the motor s status supervision. Supervisory & Control Panel will provide the easy to operation protection and control of power system by humane facto application. IPB is designed for high current, critical equipment or large capacity power plants. IPB is applied to the bus with the rated voltage of 36kV or lower and the rated current of 5,000~50,000A. Metal Enclosed Bus is a good method for main bus application in power plants, substations, buildings and factories. 25.8kV SIS Spot Network System Licensed by SIEMENS- SIMOPRIME 25.8kV SIS is an environment-friendly product using epoxy solid insulation technology instead of SF6 gas. The model adopts dual buses for uninterrupted expansion and maintenance. The isolated phase bus technology prevents short-circuit and the surface grounding provides high stability of the system. Spot Network System will eliminate the care about a power interruption and will provide the optimized installation area. Medium-Voltage Switchgear HYOSUNG-SIEMENS' high-voltage switchgear is designed based on Siemens' quality, providing performance and reliability. Licensed by SIEMENS-SIMOPRIME 14/15