POWER TRANSFORMER

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					1. Production Capacity                                      HYUNDAI



  1) Annual Production Capacity   : 28,000MVA

  2) Maximum Capacity             : up to 800MVA(3 phase)

  3) Maximum Voltage              : up to 765kV, 2050 BIL

  4) Factory Space                : 16,800m²

  5) Manpower for Transformer factory
      - 55 Engineers
      - 340 Skilled Workers



                                                                      2
2. Production Range                 HYUNDAI


   1) Power Transformer

   2) Distribution Transformer

   3) Cast resin Transformer

   4) Special Purpose Transformer
      l   Rectifier Transformer
      l   Furnace Transformer
      l   Dry type Transformer
      l   Shunt Reactor
      l   Mobile Transformer


                                              3
3. Quality Assurance (ISO 9001)
                                                HYUNDAI



   1) Original Date of Issue : July of 1989

   2) Registered Parts of Quality Assurance
       l   Transformer Design and Development

       l   Production and Testing

       l   Installation and Service




                                                          4
4. Applicable Standard
                                                 HYUNDAI




   1) IEC 76             (For Europe and Asia)


   2) ANSI C57.12.00     (For America)


   3) CAN/CSA-C88-M90    (For Canada)


   4) AS 2374            (For Australia)


   5) ES 140             (For Korea)




                                                           5
5. Short Circuit Test
                                                                                    HYUNDAI

  1) Major Performance Record of Short Circuit Test
                                                                Test of
  No.         Specification of Transformer       Test Date    Tap Change       Customer

        Generating Transformer
   1                                             Sept. 1995    N.L.T.C     PUD in USA
        3PH 6/64/85/106/119MVA 230/14.8kV YNd1


        Power Transformer
   2                                             Nov. 1989     O.L.T.C     KEPCO in Korea
        3PH 45/60MVA 154/23kV Ynyno(d)


        Power Transformer                                                  In-Chon Iron &
   3                                             Nov. 1986     O.L.T.C
        3PH 35/44MVA 154/23kV YNd1                                         Steel in Korea


        Distribution Transformer
   4                                             Dec. 1986     O.L.T.C     PUB in Singapore
        3PH 10MVA 22/6.6kV Ynynod(d)


        Power Transformer
   5                                             Dec. 1986     O.L.T.C     WAPDA in Parkistan
        3PH 20/26MVA 132/11.5kV Dyn11


                                                                                                6
5. Short Circuit Test
                                                                            HYUNDAI


  2) Detailed Explanation for the Short Circuit Test Performed to the
     230kV Transformers for Rocky Reach Project

    u   Customer : Public Utility District No.1 of Chelan County in U.S.A

    u   Project   : Replacement for Rocky Reach Dam Transformer

    u   Transformer Rating
          l   3phase 60Hz 119MVA 14.8/230kV Step-up Transformer
          l   Basic Impulse Level on H.V Side : 900kV
          l   Standard : ANSI C57.12.00

    u   Tested and Certified by Korea Electrotechnology Research Institute



                                                                                      7
u   Picture of Short Circuit Test
                                    HYUNDAI




                                              8
6. Development of Transformer
                                                                    HYUNDAI


  1) 765kV Transformer

   u   1PH 60Hz 2 x 333.3MVA 765/345kV
         OLTC type Auto transformer (Bil : 2050kV)   : 1998 Developed
   u   1PH 60Hz 204MVA 20.9/765kV
         NLTC type Step-up transformer (Bil : 2050kV) : 1999 Developed
   u   1PH 60Hz 370MVA 765/345/23kV
         NLTC type Auto transformer (Bil : 2050kV)   : 1999 Developed

  2) Gas Insulated Transformer
   u   1PH 60Hz 20MVA 154/23kV OLTC Type Transformer
       (Under Development)


                                                                              9
6. Development of Transformer
                                                               HYUNDAI

  3) Mobile Transformer (Developed)
   u     3PH 60Hz 40MVA 154/23kV (1996)
   u     "H" Class insulation (95C temp. rise)
   u     Comparison of "A" and "H" class insulation
           Insulation
            Insulation     No Load Loss
                           No Load Loss   Load Loss
                                          Load Loss   Weight
                                                      Weight


            “A” Class         31 kW        241 kW     35 TON

               “H” class      23 kW        434kW      25 TON

               Remark          74%          180%       71%



     u    Transportation with trailer
           l    Weight : 39.4 Ton
           l    Size(m) : L8.6 x W2.9 x H3.9

                                                                     10
u   Picture of 154kV 40MVA Mobile Transformer-Using H Class
    Insulation (NOMAX Paper)
                                                              HYUNDAI




                                                                    11
7. Major International Clients and Performances
                                                                            HYUNDAI
  1) North America
    Country
    Country                           Client
                                      Client              Rating of Transformer
                                                          Rating of Transformer
              Alumnium Company of America                 161/13.8kV, 93MVA
              Los Angeles Department of Water and Power   34.5/5.04kV, 16MVA
              Chelan Country                              230/14.8kV, 119MVA
              Black & Veatch                              230/15.75kV, 315MVA
              General Electric Company                    138/13.8kV, 125MVA
              Baltimore Gas & Electric                    13.8/2 X 3.9kV, 20MVA
              CRS Sirrine Engineers                       69/13.8KkV, 90MVA
              Zurn Nepco                                  132/11.5kV, 90MVA
              Westinghouse                                138/13.8kV, 150MVA
  U.S.A       Florida Power Corporation                   16/230kV, 235MVA
              Colorado River Commission of Nevada         230/69kV, 200MVA
              Sacramento Municipal Utility District       230/69/13.8kV, 200MVA
              Duke Fluor Daniel                           115/11kV, 93MVA
              Babcock & Wilcox Engineering                138/15.5kV, 160MVA
              Lower Colorado River Authority              138/22.8kV, 490MVA
              Puget Sound Energy                          230/117.8kV, 325MVA
              National Electrical System Inc.             115/13.2kV, 115MVA
              City of Tacoma                              115/13.8kV, 56MVA
              New York Power Authority                    230/13.2kV, 86MVA
                                                                                  12
7. Major International Clients and Performances
                                                                                      HYUNDAI

  2) South America
    Country
    Country                              Client
                                         Client                   Rating of Transformer
                                                                  Rating of Transformer

                                                                  230/34.5kV, 50MVA
                Interconexion Electrical S.A
                                                                  500/230/34.5kV, 150MVA
  Colombia
                EPM                                               230/115/46kV, 90MVA

                ESSA                                              115/34.5/13.8kV, 40MVA
  Trinidad      Trinidad & Tobogo Electricity Commission (TTEC)   33/12kV, 6MVA
  & Tobago
  Panama        CELMEC                                            115/13.8kV, 50MVA

  Chile         Chilectra                                         230/110/13.2kV, 130MVA

  Peru          Proyecto Ampliacion de LA S. E.                   220/60/10kV, 50MVA

  Guatemala     JBV Guatemala, LCC                                230/13.8kV, 150MVA

  Venezuela     ENELVEN                                           200/115/13.8kV, 200MVA

  Puerto Rico   Abengoa                                           115/2 X 13.8kV, 300MVA
  Brazil        CERJ                                              138/13.8kV, 33.3MVA


                                                                                            13
7. Major International Clients and Performances
                                                                                HYUNDAI

  3) Asia
    Country
    Country                              Client
                                         Client             Rating of Transformer
                                                            Rating of Transformer

  Japan         Tokyo Electric Power Company                66/6.9kV, 20MVA

  Singapore     Public Utilities Board (PUB)                22/6.6kV, 10MVA

                Tenaga Nasional Bhd. (TNB)                  275/132kV, 240MVA
  Malaysia
                Sarawak Electricity Supply Corp. (SESCO)    275/230kV, 250MVA

                Sabah Electricity Board (SEB)               275/132kV, 180MVA

  Indonesia     Perusahaan Umum Listrik Negara (PLN)        150/20kV, 100MVA

                National Power Corp (NPC)                   230/115/13.8kV, 300MVA
  Philippines
                Manila Electric Company (MERALCO)           110/34.5/13.8kV, 83.3MVA

  Vietnam       Electricity of Vietnam (EVN)                230/121/22kV, 63MVA

                Vietnam POSCO Steel Co.                     110/6.6kV, 20MVA

  Bangladesh    Bangladesh Power Development Board (BPDB)   240/140kV, 150MVA


                                                                                       14
7. Major International Clients and Performances
                                                                                        HYUNDAI

  3) Asia
    Country
    Country                             Client
                                        Client                      Rating of Transformer
                                                                    Rating of Transformer

              Electricity Generating Authority of Thailand (EGAT)   115/34.5/11kV, 50MVA
  Thailand
              Metropolitan Electricity Authority (MEA)              60/11.5kV, 60MVA

              Provincial Electricity Authority (PEA)                115/23.1kV, 40MVA

  Myanmar     Myanmar Electric Power Enterprise (MEPE)              132/33/11kV, 30MVA

              Water and Power Development Authority (WAPDA)         230/11kV, 125MVA
  Parkistan
              Karachi Electricity Supply Corporation (KESC)         132/11kV, 40MVA

              D. G Khan Cement Company                              132/6.3kV, 20/26MVA

  India       Oil and Natural Gas Commission (ONGC)                 6.6/0.433kV
                                                                    2000KVA (Cast Resin Type)

  Srilanka    Ceylon Electricity Board (CEB)                        132/33kV, 31.5MVA



                                                                                                15
7. Major International Clients and Performances
                                                                                HYUNDAI

  4) Middle East
     Country
     Country                               Client
                                           Client           Rating of Transformer
                                                            Rating of Transformer

                 Electricity Corporation                    132/33kV, 60MVA

                 SCECO-Central                              132/13.8kV, 100MVA
  Saudi Arabia
                 SCECO-East                                 230/115/34.5kV, 400MVA

                 Tabouk Electricity Company                 132/13.8kV, 100MVA

                 Arabian American Oil Company               66/13.8kV, 67MVA

  Iraq           State Organization of Electricity (SOE)    400/138.6/11kV, 250MVA

  Yemen          Yemen General Electricity Corp. (YGEC)     132/33kV, 25MVA

  Lebanon        Council for Development & Reconstruction   66/20-11kV, 40MVA

                 Dubai Electricity Company                  33/11kV, 15MVA
  U.A.E
                 Water and Electricity Department           11/0.433kV, 1500KVA
                                                            (Cast Resin Type)

  Oman           Ministry of Electricity and Water          33/11kV, 20MVA
                                                            Shunt Reactor
  Turkey         Turkiye Electric Kurumu
                                                            154kV, 5MVAR

                                                                                      16
7. Major International Clients and Performances
                                                                                   HYUNDAI

  5) Oceania and Canada
    Country
    Country                             Client
                                        Client                   Rating of Transformer
                                                                 Rating of Transformer
  Australia     Pacific Power (The Electricity Commission of     132/11kV, 20MVA
                New Sourth Wales)                                132/69/11kV, 20MVA
                Power Link (Queensland Electricity Commission)   230/34.5kV, 80/120MVA
                BHP Engineering Pty Ltd.                         132/66/11kV, 120MVA
                Shortland County Council                         66/13.8kV, 67MVA
  New Zealand   New Zealand Aluminium Smelter Ltd. (NZAS)        220/11kV, 50MVA
  Papua New     The Electricity Commission of P.N.G              132/66kV, 20MVA
  Guniea
                British Columbia Hydro & Power Authority         512.5/242/25.2kV, 500MVA
                Richmond Hill Hydro                              212.5/2 X 28kV, 125MVA
                Manitoba Hydro                                   114.3/2 X 12.47kV, 50MVA
                Alberta Power Ltd.                               144/25kV, 50MVA
  Canada        Howe Sound Pulp & Paper Ltd.                     230/13.8kV, 62MVA
                Yukon Electrical Company                         138/13.8kV, 40MVA
                Stone & Webster Canada Ltd.                      243/2 X 13.8kV, 171MVA
                Transalta Vtilities                              260/72kV, 224MVA
                Agra Monenco/ Aurora Mine                        260/72kV, 116.2MVA
                Saskatchewan Power Corporation                   128/24.9kV, 29.8MVA

                                                                                            17
7. Major International Clients and Performances
                                                                                          HYUNDAI

  6) Europe
    Country
    Country                               Client
                                          Client                      Rating of Transformer
                                                                      Rating of Transformer

  Switzerland   ABB Power Generation Ltd.                             220/21kV, 420MVA

  Germany       Siemens AG                                            132/6.9kV, 40/45MVA

  Denmark       Johs Gran-Hassen Product Ltd.                         220/60/10kV, 40/50MVA



  7) Africa
    Country
    Country                               Client
                                          Client                      Rating of Transformer
                                                                      Rating of Transformer

  Egypt         Egyptian Electricity Authority (EEA)                  21/220kV, 395MVA

                Arco Steel                                            220/22.5kV, 80MVA

  Ethiopia      Ethiopian Electric Light and Power Authority (ELPA)   132/15kV, 22MVA
                Heavy Industries Secretariat Tripoil Socialist
  Libya         People’s Libyan Arab Jamshebreya
                                                                      11/225kV, 105MVA


                                                                                                18
8. Major Production Facilities
                                                              HYUNDAI



  1) Over-Head Crane (300 TON x Span 38m)

  2) Vacuum Vaporization Facility (L 13m x W 4.8m x H 6.6m)

  3) Air - Cleaning Facility (L 45m x W 40m x H 7m)

  4) Oil Filtering Machine (8,00 litter / hour)

  5) Motorized Transporter for Test (400 TON x 2EA)

  6) Core Binding Machine (40 TON x W 8m)

  7) Core Lamination Table (120TON)



                                                                    19
9. Major Testing Facilities
                                                               HYUNDAI


  1) Impulse Generator System ( 400KV / 600KJ )

  2) Oscillation Lightning Impulse Test System (1,800KV / 90KJ )

  3) AC Series Resonant Voltage Test System
     (1,200KV / 4,800KVA )

  4) AC Power Generator System ( 23MVA x 2sets )

  5) AC Power Generator System ( 23MVA x 2sets )

  6) Condenser Bank ( 158KV, 225MVAR )

  7) Transformer Loss Measuring System (200KV / 4,000A )


                                                                     20
10. Major Manufacturing Process
                                  HYUNDAI

  1) Winding Works




                                        21
10. Major Manufacturing Process
                                  HYUNDAI

  2) Core lamination




                                        22
10. Major Manufacturing Process
                                                                    HYUNDAI


  3) View of Core Structure (After Completion of Core Lamination)




                                                                          23
10. Major Manufacturing Process
                                  HYUNDAI

  4) Coil Insertion Works




                                        24
10. Major Manufacturing Process
                                            HYUNDAI

  5) View of Core and Coil Assembly Works




                                                  25
10. Major Manufacturing Process
                                                    HYUNDAI

  6) Drying Works in Vacuum Vaporization Facility




                                                          26
10. Major Manufacturing Process
                                          HYUNDAI

  7) Completion of Core & Coil Assembly




                                                27
10. Major Manufacturing Process
                                  HYUNDAI

  8) Factory Test




                                        28

				
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