OPM_LPS_33E_10K_30K_4CN_V010.doc 10/82 Operating Manual LP 33 / 10-20-30 kVA
2 INTRODUCTION
2.1 GENERAL DESCRIPTION
The LP 33 Uninterruptible Power Supply (UPS) provides the energy supply for critical loads which
need a reliable, continuous free from voltage disturbances and frequency fluctuations supply.
In case the mains fails, or it exceeds the permitted tolerances, the energy to supply the load is
furnished by the battery with a backup time dependent on its capacity, until the mains recovers.
LP 33 is a truly On-line double conversion Uninterruptible Power Supply (UPS),
equipped with automatic bypass, where the load is normally supplied by the
inverter.
LP 33 can be configured, if chosen, for the IEM mode (Intelligent Energy
Management) permitting the maximum energy saving.
The main typical performances of the LP 33 system are the following:
• On-line double conversion technology to provide an excellent quality power supply.
• Input power factor 1.
• Input current THD 8%.
• Automatic bypass and manual bypass to improve reliability and maintenance.
• Microprocessor controlled supervision.
• Dual AC inputs (optional).
• IEM mode operation (Intelligent Energy Management).
• Compact and agreeable design expressly conceived for “Office environment”.
• Low level acoustic sound, 50 dB (A) (10 and 20kVA) and 55 dB (A) (30kVA), to avoid
noise to the persons operating in the same environment.
• Multi-language LCD screen.
• Total battery management: SBM (Superior Battery Management)
• High battery capacity, 25 minutes (10 kVA) and 10 minutes (20 and 30 kVA), with battery
housed in the UPS cabinet.
• Wide rectifier input voltage tolerance: 324 ÷ 478 VAC (phase - phase).
• Wide rectifier input frequency tolerance: +/-10% (45 ÷ 55 for 50 Hz and 54 ÷ 66 for 60 Hz).
• RPA (Redundant Parallel Architecture) up to 4 units.
• GE Connectivity.
• Compliance with European standard 50091-2.
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