Riello UPS - Master Dialog

30-80kVA three/single phase

The Master Dialog range uses advanced double-conversion on-line (VFI) technology with a transformer isolated inverter output to support loads up to 80kVA and provides a single output from a three phase input.

• Advanced double-conversion on-line (VFI) technology (EN50091-3)with EMI filters and a transformer isolated inverter output
• High reliability : microprocessor controlled static and manual bypass facility
• IGBT based power electronics
• Extremely high short circuit current (2.8In)
• Parallel and redundant (N+1)operation
• Dual input option
• High level diagnostics : states, modes, measurements and alarms
• Built-in front panel LCD with scroll function, RS232 and signal contact ports
• Low power consumption and maintenance costs (MTTR 30minutes)
• Low cost and simplified installation including; calibration of the output voltage from the front panel keypad to allow for voltage drop down long cable runs
• Ability to place the UPS on any distribution network (neutral not required on rectifier input) using input isolation transformers
• Separation of the rectifier/bypass power supplies
• Powering from different sources without Galvanic isolation
• Built-in battery test facility (automatic and manual), temperature compensating charger and deep battery discharge protection
• Cold-start facility to allow the UPS to power up without a mains supply for security applications such as emergency lighting

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