HITACHI AMORPHOUS TRANSFORMERS

Transcription

1 HITACHI AMORPHOUS TRANSFORMERS

2 AMORPHOUS TRANSFORMERS Hitachi amorphous transformers reduce electric cost and environmental burdens. Nakajo division, the production site of Hitachi Transformers has its roots in Kameido works, Tokyo. Kameido works made great contribution to Hitachi Group s development since its start and relocated to Nakajo, Niigata prefecture in Nakajo division is one of Hitachi s state-of-art factories surrounded by green forest and overlooking Japan Sea. Nakajo works makes every effort to provide an environmentally friendly operation using for example the most advanced effluent treatment facilities and other energy saving facilities such as Hitachi Amorphous Transformers. Nakajo division Hitachi Amorphous Transformers are super energy saving transformers that represent the advanced technological strength of the world leading high-tech company, Hitachi Industrial Equipment Systems Co., Ltd. (Hitachi IES) Hitachi Transformer, s superior performance makes significant contribution to energy and CO2 reduction by saving No load losses (standby energy). Hitachi Transformers have been well-received for their energy saving effects and commended numerous times. In1979 and 25, Nakajo won the Japanese Economy Minister s Prize forits excellence in energy management of production facilities. Nakajo works also maintains ISO141(JQA-EM5428) certification. As a market leader, Hitachi IES delivers many high efficiency transformers to various institutes, hospitals, universities, factories and large size commercial facilities. To achieve Hitachi Group s Environmental Vision 225 to reduce million tons of annual CO2 emission, Hitachi IES continues to introduce products which contribute to the global environment and energy conservation. Registration number: JQA-EM5428 Registration date: July 29, 1997 The Energy Saving Systems Division (Nakajo Division) of Hitachi Industrial Equipment Systems Co., Ltd. obtained ISO 141 certification, an international standard for environmental management systems. 1 2

3 AMORPHOUS TRANSFORMERS Product Lineup Hitachi amorphous transformers are produced by state-of-art technology. Many years of R&D effort realized the lowest loss transformers. The combination of high technology and long years experience lead our transformers to the first level quality and performance in the world. Hitachi IES produces the wide range of transformers for various applications. Oil-Immersed Type Transformer Molded Type Transformer Overhead Type Transformer Great benefits and high quality is always guaranteed. Application Factory Building Electric Pole Hitachi amorphous transformer is suitable for recycle. There is increasing demand of amorphous transformer to prevent global warming. Amorphous core is made of recyclable material. Hitachi IES offers the transformer which is suitable for the recycle system. Users For Outside Installation Product Range For Inside Installation For Utility Companies Disassemble Recycling companies Hitachi IES Production Products Oil-Immersed Type Molded Type Overhead type Phase Single or Three Single Voltage (kv) Capacity (kva) 13, 11, 1 Reuse 3 4

4 Key Points to Save Energy with Transformers Hitachi Amorphous Transformer is the solution for saving energy. There are two type of losses which are generated during operation : No load loss and Load loss. Amorphous material has great advantage in reducing No load loss. By applying this material to the transformer core with Hitach IES's advanced technologies, it is possible to achive high efficency and save huge amount of energy in many years. No Iron loss The constant loss that always occurs regardless of whether loaded or not. Copper loss The loss occurs because of the flow of load current when loaded. Reductin of No Reductin of Energy Saving CO2 Reduction Load loss(w) No load loss(w) Amorphous Transformer is the Solutions What is Amorphous Transformer? The amorphous is a non-crystal substance created by rapidly freezing liquids of high temperature. Because there is no rule of atomic arrangement, the energy loss (hysteresis loss) is small when the flux of magnetic induction passes the iron core. In addition, eddy current loss is decreased because the thickness is approximately.3 mm, which is about 1/1 comparing with silicon steel. Therefore, the no load loss (eddy current loss and hysteresis loss) can be decreased to about 1/5 of silicon steel, s. Crystalline Amorphous [Non-crystalline] Thickness 25μm (1/1 of conventional materials) About the loss of transformers The load loss and no load loss occur at the same time when the transformer is operated, the loss is a useless output chiefly converted into heat. Ribbon thickness is 1/1 of Silicon Steel, s [Silicon Steel:.23mm, Amorphous Alloy:.25mm] H M:Magnetization O Silicon Steel (Crystalline) H M:Magnetization H H Amorphous Alloy (Non-crystalline) Strength of magnetic field Hysteresis loss By magnetic induction, magnetic domain rotates to have unified direction. The loss caused by this movement is hysteresis loss. Eddy current loss When magnetic flux flows, eddy carrent flows to negate the flux.this eddy current cause loss proportional to the resistance. Material Characteristics Comparison 5 Higher electrical resistance, almost triple of Silicon steel, s [Silicon Steel:5-cm, Amorphous Alloy:13-cm ] Material Silicon steel(crystalline) Amorphous Alloy (Non-crystal line) Saturation flux density (T) Electrical resistance ( cm ) 5 13 Iron loss (W/kg) (1).44.7 Thickness (mm) (1) Estimated; 5Hz, flux density 1.3T

5 AMORPHOUS TRANSFORMERS Oil-Immersed Type 3P kva 6kV/21V 6Hz Loss (W) 5, 4, 3, 2, Load loss(w) No load loss(w) 28MWh/year 15.4t/year 2,24 1,152 No load loss 7%Down Electrical energy CO2 Emission (rate:.555kg/kwh) 24MWh/year 13.5t/year 2, Efficiency (%) Load Factor (%) Dimension (mm) X Y Z 1,42() 1,75() 1,51() 1,62(114) 1,125(15) 1,51() % Loaded Loss (W) No- Total Loss 1,152() 8,95() 9,247() 35(3) 9,75(12) 1,(19) Mass (kg) 2,445() 3,12(128) 5% Loaded Total Loss (W) 3,176() 2,788(88) Characteristic Table Oil Immersed Type Phase 3P 3P Core Type Amorphous Steel Silicon Steel Voltage V 6.6kV/21 6.6kV/21 Frequency Hz 5Hz 6Hz 5Hz 6Hz Capacity kva No W , ,152 W 1,64 6,3 1,6 1,64 6,15 9,75 1,392 4,337 8,326 1,32 4,4 8,95 Efficiency % % Loaded Total Loss W 495 1,775 2, ,727 2, ,686 3, ,68 3,175 =Silicon Steel Core Transformer =Amorphous Steel Core Transformer 6

6 Molded Type 3P kva 6kV/21V 6Hz Loss (W) 5, 4, 3, 2, Load loss(w) No load loss(w) 32MWh/year 17.7t/year 1,97 1,67 No load loss 74%Down Electrical energy CO2 Emission (rate:.555kg/kwh) 24MWh/year 13.t/year 2, Efficiency (%) Load Factor (%) Dimension (mm) Mass (kg) X Y Z 1,395() 7() 1,49() 2,4() 1,43(96) 8(114) 1,65(18) 3,5(12) % Loaded Loss (W) No- Total Loss 5% Loaded Total Loss (W) 1,67() 7,88() 9,55() 3,64() 44(26) 9,17(116) 9,61(11) 2,733(75) Characteristic Table Molded Type Phase 3P 3P Core Type Amorphous Steel Silicon Steel Voltage V 6.6kV/21 6.6kV/21 Frequency Hz 5Hz 6Hz 5Hz 6Hz Capacity kva No W , ,67 W 1,75 5,36 8,97 1,8 5,45 9,17 1,875 4,521 7,88 1,875 4,522 7,88 Efficiency % % Loaded Total Loss W 537 1,61 2, ,62 2, ,18 3, ,69 3,64 =Silicon Steel Core Transformer =Amorphous Steel Core Transformer 7

7 AMORPHOUS TRANSFORMERS Overhead Type 1P 5kVA 6kV/21V 6Hz Loss (W) Load loss(w) No load loss(w) 2.2MWh/year 1.2t/year 14 No load loss 71%Down Electrical energy CO2 Emission (rate:.555kg/kwh) 1.5MWh/year.8t/year H Efficiency (%) Load Factor (%) Dimension (mm) H 435() 83() 435() 89(17) % Loaded Loss (W) No- Total Loss 115() 558() 673() 33(29) 558() 591(88) Mass (kg) 258() 31(12) 5 Loaded Total Loss (W) 255() 173(68) Total Owning Cost (1) 89 Notes 1 A factor =1(US$/W) B factor = 3(US$/W) On the premise that T.O.C. of is Characteristic Table Overhead Type Phase 1P 1P Core Type Amorphous Steel Siliocon Steel Amorphous Steel Siliocon Steel Voltage V 6.6kV/21 Frequency Hz 5Hz 6Hz Capacity kva 5 No W W % Loaded Total Loss W =Silicon Steel Core Transformer =Amorphous Steel Core Transformer 8

8 Calculation Examples Annual Loss of Electricity Cost (money amount/year) No W W Test calculation column W W Load Factor 2 2 Reduction of Carbon-dioxide emissions 365 days 365 days Electric power suppliers' emission coefficient.444[kg-co2/kwh] [kg-co2/kwh] Electric Charge Electric Charge /kwh /kwh Case StudyNakajo Works Transformer Characteristics No W W 25 years Old 1, ,3 9,75-5% Load Factor- JPY11/kWh- CO2 emission coefficient.444 kgco2/kwh Annual Loss of Electricity Cost money amount/year S i T 1,8W 35W 11,3W 9,75W Great Cost Saving Effect : 446k JPY/year 269k JPY/year 177k JPY/year 365days 365days 11JPY/kWh 11JPY/kWh 446k JPY/year 269k JPY/year Reduction of CO2 emissions S i T 1,8W 11,3W W 9,75W.5 2 Great CO2 Reduction Effect : 365 days 365 days [kg-CO2/kWh].444[kg-CO2/kWh] 18.t/year 1.8t/year 7.2t/year 18.t/year 1.8t/year Electricity loss (MWh) years old6,91$/y Hitachi 2,25 before After Annual Electric Cost ( $/Y) 1, 9, 8, 7, 6, 5, 4, 3, 2, SAVING Cost : 466 ($/Y) Energy : 16.3 (MWh/y) CO2Emission : 7.2 (t/y) Load Factor (%) 25years old Hitachi Electric cost : $/Y 1 cent/kwhco2emission Rate:.444kg-CO2/kWh Annual Electric Amount( MWh/Y) Total Owning Cost Amorphous (Installation Fee) Silicon Steel Product Lifetime Transformer has long life cycle. Amorphous transformer shows advantages in total owning cost. Hitachi IES also offers Amorphous Transformer Cores and Production Technologies. 9

9 AMORPHOUS TRANSFORMERS Amorphous Transformer Structure Core Coil Primary Bushing Secondary Bushing Tank Accessories transformer base rubber hole base Dial Temperature Gauge Rubber vibration insulator Wheel Oil Immersed Transformer Standard / Option Accessories Primary Bushing Secondary Bushing Internal Control Tap Changer External Control Tap Changer Name Plate, Connection Diagram Hand Hole Lifting lugs for total body Lifiting lugs for internal body Base Earthing Terminal Monitor (with pressure release valve) Monitor ( without pressure release valve) High Voltage Terminal Cover Oil Drain Tap Oil Drain Valve Pressure Resease Valve Dial Temperature Gauge Contact Preventing Plate Foundation bolt Activated Almina Rubber vibration insulator ( with Stopper) Solt Torelant Bushing ( primary ) Flat Wheel Upper Terminal Block Bus Flange Direction Change of Secondary Terminal Colour Change Solt Torelant Coating Special Coating Low Temperature Resistance( Pt) Primary, Seconday terminal Connection bolt Capacity(kVA) Accessories , 1,2, Please contact us for the details. 1

10 Principal Office(International Sales Dept.) AKS Building, 3, Kanda Neribei-cho, Chiyoda-ku,Tokyo,11-22, Japan TEL: +81-() FAX: +81-() USA Hitachi America, Ltd. (Industrial Components & Equipment Division) 5 Prospect Avenue, Tarrytown, New York, TEL: +1(914) FAX: +1(914) Europe Hitachi Europe GmbH (Industrial Components & Equipment Group) Am Seestern 18 (Euro Center) D-4547 Düsseldorf P.O.BOX 1153, 4545 Düsseldorf TEL: +49 (211) 5283 FAX: +49 (211) China Hitachi (China) Ltd. (Shanghai Office) (Hitachi (Shanghai) Trading Co., Ltd.) (Industrial Equipment Systems Division) 18th Floor, Rui Jin Building No.25 Maoming Road (S) Shanghai, 22 TEL: +86 (21) FAX: +86 (21) Asia & Middle East Hitachi Asia Ltd. Industrial Components & Equipment Division 24 Jurong Port Road, #3-5 Office Block, CWT Distripark Singapore, TEL: +65 (6271) 686 FAX: +65 (6278) Information in this brochure is subject to change without notice. For further information, please contact your nearest sales representative. Printed in Japan (H) ST-E18P 91