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GE Digital Energy

GE Digital Energy. SG Series 600 UPS 600kVA / 400Vac CE / S1 Sales Presentation April, 2010. Product range. UPS SG Series 600 CE S1 480kW. 400-500 kVA. CE Marked, 3x380/400/415V In 50Hz, & Out 50/60Hz. True On-Line Double Conversion VFI technology Voltage and Frequency Independent

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GE Digital Energy

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  1. GEDigital Energy SG Series 600 UPS 600kVA / 400Vac CE / S1 Sales Presentation April, 2010

  2. Product range UPS SG Series 600 CE S1 480kW 400-500 kVA CE Marked, 3x380/400/415V In 50Hz, & Out 50/60Hz

  3. True On-Line Double Conversion • VFI technologyVoltage and Frequency Independent • Inverter output transformer for load galvanic separation Bypass supply Static bypass Class 1 Rectifier Inverter AC DC Load Rectifier supply AC DC Battery bank Double conversion technology SG Series CE classification: VFI – SSS – 111 VFI Voltage & Frequency Independent Frequency Converter operation available SS Output voltage THD < 8% for all loads THDv < 1.5% linear loads THDv < 3% non-linear loads 111 Class 1 performance Exceeding Class 1 ‘’Best in Class’’ dynamic response: +/- 3% at load step: 0-100%-0 +/- 2% at load step: 0-50%-0 SG Series

  4. Q2 MANUAL BYPASS SSM AUTOMATIC BYPASS K6 INPUT MAINS RECTIFIER INVERTER Q1 Q4 LOADS K7 INVERTER TRANSFORMER BATTERY Q3 UPS configuration • Double conversion(VFI) technology with output isolation transformer • Automatic bypass for overloads, short circuit and UPS disturbances conditions • Manual bypass for UPS maintenance operations without load interruption • Protection safety devices integrated - back feed protection K6 standard

  5. Backfeed contactor static bypass Input mains Rectifier Inverter AC Load DC DC AC Battery bank BackfeedprotectionIEC 62040-1 : ……“For fixed installation UPS, backfeed protection may be provided internally or externally to the UPS in the a.c. input line” Standard feature inside UPS cabinet • No additional cost required • No addition installation required Fully compliant with IEC 62040-1 • Compliance to UPS installation safety requirements Safer operating condition • Safer operation for end users and service engineers preventing feedback to the mains from the inverter in case of mains failure and a fault in the bypass circuit

  6. UPS configuration Q2 MANUAL BYPASS SSM AUTOMATIC BYPASS K6 INPUT MAINS RECTIFIER INVERTER Q1 Q4 LOADS K7 INVERTER TRANSFORMER BATTERY Q3 Advantages - Output Isolation Transformer Advantages : • No DC component in output (galvanic isolation by transformer) Transformer less UPS – DC components are controlled electronically • Lower DC voltage – less number of batteries per string (30-32 blocks) Less cost for same type of batteries and back up time Transformer less UPS – More battery blocks, connections etc

  7. UPS configuration Advantages - Output Isolation Transformer • Better short circuit capability in battery mode (bypass not available) Transformer based UPS – 2.7 X Nominal current Ph-Ph - 4 X Nominal current Ph-N / G Transformer less UPS – 2.2 X Nominal current • No neutral current back to the mains in case of unbalanced load Output Electrical Stiffness: • Better management of unbalanced load. A Zig-Zag transformer will share an unbalanced load on the three inverter bridges Transformer less UPS – inverter legs may see unbalanced load ( different leg operates at different load % - Components stress level are different) • Better management of non linear load (low level harmonics are short-circuited) • Super ECO mode – Transformer inductance filter mains noise by ~ 30% (Surges, transients)

  8. Compact design Reduced footprint • Compact design saving space in installation - 600 kVA: 1950 x 950 x 1900 mm - Optional Cabinet: 570x 950 x 1900 mm • Easier to handle True front access • Installation against a wall • More space available for other equipments 1900 1950 950 Best in Class Foot print

  9. 55 Hz 50 Hz 45 Hz -15% +15% 400V Input rectifier performancesWide input window to preserve battery autonomy and lifetime Input window Wide input voltage and frequency windows • Limited use of battery • Preserve battery autonomy for real input mains failures • Increase battery lifetime Soft start • Rectifier can be activated gradually, controlling the input current • Preventing instable situation for GenSet • Avoids false trip of upfront protection devices • Sequential softstart for parallel UPS Input frequency Input voltage Soft start • UPS input current UPS 1 UPS 2 • 100% • 0% • time

  10. Input performance UPS input performances With built in 5th harmonic filter as standard and 11th harmonic filter as optional • Total Current Harmonic Distortion - THDi < 4% @ 100% load • UPS input power factor: 0.92 (for reduced apparent power consumption) Benefit on input mains • Saving in the sizing of upfront equipments e.g. GenSet, cablings, circuit breakers, … • No disturbances to nearby equipment GenSet friendly

  11. UPS output power capability • Full range power capability • Designed to supply real power for any type of application - inductive loads- resistive loads- capacitive loads • No de rating required to supply resistive and capacitive loads (0.9) • Suitable for modern power supply application with unit or capacitive power factor (e.g. new servers generation), crest factor up to 3:1 I.e. SG Series 600 load capabilities: Inductive load PF=0.8 480 kW / 600 kVA Resistive load PF=1 480 kW / 480 kVA Capacitive load PF=0.9 480 kW / 533 kVA

  12. High Efficiency at all loadsReduced customer operation costs and cost saving in air conditioning design High efficiency performances at any load • High efficiency at full and partial loads for real benefit in operating conditions Energy cost saving • Reduced cost of customer equipment operation at all loads Air conditioning cost saving • Reducing size and cost of air condition system • Reducing consumption and related operating cost SG Series 600 – Efficiency 100% 93.7% 80% Efficiency % 60% Typical Operation 40% 20% 0% 10% 25% 50% 75% 100% Load

  13. Bypass supply Static bypass Rectifier Inverter AC DC Load Rectifier supply AC DC Battery bank Bypass supply Static bypass Rectifier Inverter Transf. AC DC Load Rectifier supply AC DC Battery bank Super Eco Mode - functionalityImproving UPS efficiency Normal mode Normal mode • The output voltage is newly generated, independently from the input voltage • Heat losses are present in rectifier and inverter Super Eco Mode • Load is supplied via the bypass • UPS rectifier keeps the battery charged • UPS inverter switched off(no heat losses) • The inverter output filter act as mains filter and improves load PF by 10 –15% Super Eco Mode

  14. Super Eco Mode - benefitHigh efficiency, preserving protection to critical load < 2ms • High efficiency: >98% • prevents heat losses • saving customer utility bill • Fast transfer time to inverter: <2 ms • Guaranteed safe energy for the application • Configurable according to load requirement • Adjustable bypass supply tolerance - voltage: +/- 10% (adjustable) - frequency: +/- 5% (adjustable) Bypass on/off Output voltage Inverter current Inverter control

  15. Super Eco Mode - benefitHigh efficiency, $$$ • Case 1 (VFI Mode) - SG Series 600 – 75 % load • - Load: 480kW*0.75 = 360 kW • - Efficiency of UPS: 93% • - Dissipated power: 25.2 kW • - Air conditioner : 35 kW (1.4 x Dissipated power) • Total cost: 60.2 kW * 365 *24 * $0.11 = • annual : $ 58,000 • Case 1 (Super ECO Mode) – SG Series 600 - 75% load • - Load: 480kW*0.75 = 360 kW • - Efficiency of UPS: 98% (on SEM) • - Dissipated power: 7.2 kW • - Air conditioner: 10 kW • Total cost: 17.2 kW * 365 *24 * $0.11 = • annual : $ 16,500 Total Savings = $58,000-$16,500 = $41,500 Total Savings = $ 17,300 (excluding air conditioner)

  16. EMC - Immunity Immunity SG Series products design exceed IEC 62040-2 C3 level for immunity, i.e. can withstand possible disturbances and noise without affecting standard working conditions

  17. Control panel • Back lit Graphic Display (LCD) • Multilanguage communication interface:English, German, Italian, Spanish, French, Finnish, Polish, Portuguese, Czech, Slovakian, Chinese, Swedish, Russian and Dutch • Synoptic diagram indicating UPS status • Command keys and parameters setting • UPS status control LED LED - red Stop Operation LED - yellow Alarm LED - green Operation

  18. Redundant Parallel Architecture Configurable up to 6 units in parallel • Future expansion • Safe and reliable power supply • Redundant Communication Bus Easy to install and maintain • Easy system upgrade/downgrade • Maintenance operation withoutload interruption utility supply redundantcommunicationbuses critical load

  19. Customer interfaceEasy integration with Building Management System (BMS) UPS supervision capability • 1x Connector RJ45 communication port • 6 programmable potential free alarm contacts: - D plug - Terminals blocks • 1x Emergency Power OFF contact • 1x Gen-ON Input contact • 1x Control Input contact Additional interface: • SNMP Interface Card(10/100Mbps auto-select) • MODBUS RTU Interface (RS232 or RS485) Customer interface (IM 0171) Connectivity rack

  20. Product options Factory Mounted Options Top cable entry cabinet for SG Series 600 570 x 950 x 1900 mm Battery Switch (Q3) Cabinet for SG Series 600 570 x 950 x 1900 mm 11th Harmonic filter – In build option Battery cabinets: same as for current SG Series 160-300 PurePulseTM products Parallel output cabinet: special design, available upon request Battery Fuse Box , Surge suppressor, Common mains & RPA Additional Cabinet – Q3

  21. Input performances benefit High input performance means saving: • GenSet size ( From 2 X Load kVA to 1.3 X Load kVA) - Stable & longer life due to absence of harmonics • Circuit breaker size • Cabling section/size • Investment & space • Improved life for nearby equipments • Less reactive power – saves on power compensation

  22. Output performances benefit • Superior Output Power Factor capability • Suitable for actual load applications, such as capacitive loads in new datacenters • Capability to supply critical loads with high and fast load steps (pulsating loads) • Improved quality of application, reducing stress for supported loads

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