LP Series 400V CE GE Consumer & Industrial September 2004

2 / GE / Range CE Marked, 400V In & Out, 50/60Hz kVA Ranges – kVA True On-Line, Double Conversion –Voltage and frequency independent –Transformerless Superior Performance –Superior Battery Management –Excellent Output Regulation Clean Input –High input power factor (0.98) –Low input current THD (<8%) Redundant Parallel Architecture™ –Up to 4 units parallel –Decentralized bypass 24x7 Field Service Coverage Digital Energy™ LP 33 Series UPS kVA Power 400 VAC 50/60 Hz

3 / GE / Technical Description Neutral connection is required Two battery strings Filtering is done by inductors and capacitors Two DC link voltages Booster is creating a regulated DC link Neutral is ‚‘through-going‘‘ (input neutral = output neutral) Battery bank 2x DC Cap 2x IGBT Inverter Rectifier LC filter Mains DC link - DC link + Booster + Booster - Through going neutral Batt.Charger

4 / GE / Input voltage window Extremely Wide Voltage Window Less battery operations Voltage:- 25% +20% Frequency:+/- 10% Wider Range is Better +10% -15% Input Voltage Input Frequency 208Vac +20% -25% +5% -5% Competition +10% -10%

5 / GE / Input performance Harmonics Feedback Current THDi : <8% Power Factor : >0.98 Advantages: No additional filters required Prevents need for oversized GenSet Reduced cost for cabling and fusing Sinusoidal input current waveshape (THD <8%)

6 / GE / Energy Consumption Efficiency: 91% (double conversion mode) AC DC Static Bypass Rectifier Inverter Bypass Supply Mains Supply Battery Bank The output voltage is newly generated, independently from the input voltage. Voltage and frequency variations at the input are not present at the output. Heat losses are present in Rectifier and Inverter Output Filter

7 / GE / Supply the load via the bypass circuit in order to prevent heat losses. This can be done only in case the bypass supply is in tolerance AC DC Static Bypass Rectifier Inverter Bypass Supply Mains Supply Battery Bank Load Load is supplied via the bypass The rectifier keeps the batteries charged The inverter is switched off (no heat losses) Output Filter ECO Mode

8 / GE / Performance of ECO Mode Simulation of transfer back to inverter Bypass on/off Inverter current Inverter control Output voltage Fast Transfer to Inverter < 2ms In case the bypass supply is out of tolerance the inverter will start immediately This transfer is done within 2 ms, which is more than sufficient for most loads Bypass supply voltage tolerance: +/- 10% (adjustable) Bypass supply frequency tolerance: +/- 5% (adjustable) Output filter provides mains filtering and power factor correction from 0.8 to 0.9 (dep. on load) Efficiency up to 98%

9 / GE / RPA Redundant Parallel Architecture RPA features Up to 4 units in parallel Any UPS able to be the logic leader Decentralized bypass No single point of failure To critical load LP Series is a cost effective and reliable UPS system, using proven technology To increase system reliability more units can be connected in parallel with GE‘s unique RPA concept Utility Supply

10 / GE / Interfacing Features 1x RS232 Serial Communication Port 4 Programmable potential free alarm contacts on terminals blocks 1x Emergency Power OFF contact Optional:SNMP Interface Card (10/100Mbps auto-select) MODBUS RTU Interface (RS232 or RS485) Extended customer interface with 6 programmable pot. sree contacts and Gen-On contact

11 / GE / Highlights Low Input Current THD (<8%) High Input Power Factor (>0.98) ECO Mode RPA with decentralized bypass Excellent output performance

12 / GE /