MULTI SENTRY is a state-of-the-art uninterruptible power supply, achieving the highest possible level of on-line double-conversion performance (VFI-SS-111) as defined within IEC EN 62040-3. The UPS has been designed to protect critical information and telecommunications systems, networks, services and processes whose operation could be disrupted by poor power quality and/or breaks in their mains power supply.
The sizes available include: 60kVA – 80kVA – 100kVA – 125kVA – 160kVA – 200kVA all with a three-phase input and output.
MULTI SENTRY can be used for a wide range of applications, thanks to its configuration options, flexibility, accessories and performance levels:
Distributed parallel configuration of up to 8 units per redundant (N+1) or power parallel system. The UPS continue to operate in parallel even if the connection cable is interrupted (Closed Loop).
Proper battery care is critical to ensuring correct UPS operation in emergency conditions. The Riello UPS battery care system consists of a series of features and capabilities to optimise battery management and obtain the best performance and operating life possible.
Battery recharging: Multi Sentry is suitable for use with hermetically sealed lead acid (VRLA), AGM and GEL batteries and Open Vent and Nickel Cadmium batteries. Depending on the battery type, different charging methods are available:
Temperature compensation: to avoid excessive voltage being applied to the batteries in a high ambient
Battery test: to detect performance degradation and predict battery failure.
Deep discharge protection: to prevent the batteries being discharged below a level from which they cannot be recovered (especially when discharged over long periods with very low loads).
Low AC ripple current: from a high-frequency battery charger, to ensure the batteries are not subjected to this damaging element commonly experienced with some other UPS and power supply designs.Wide input voltage range: from a rectifier that can work down to less than 40% of its nominal supply rating (at half load), removing the need to discharge the batteries.
The MULTI SENTRY design provides exceptional performance and efficiency levels:
|Model||Rated Power (kVA)||Active Power (kW)||Power Factor|
|Frequency tolerance||40 – 72 Hz|
|Power factor at full load||> 0.99|
|Current distorsion||thdi ≤ 3%|
|Nominal Voltage||380-400-415 Vac three-phase + N|
|Number of phases||3 + N|
|Voltage tolerance||180 – 264 V (selectable)|
|Nominal Frequency||50 or 60 Hz (selectable)|
|Frequency tolerance||±5 (selectable)|
|Bypass Overload||125% for 60 minutes, 150% for 10 minute|
|Number of phases||3+N|
|Frequency||Can be selected: 50 Hz or 60 Hz or self-learning|
|Static variation||± 1%|
|Dynamic variation||± 3%|
|Current crest factor||3 : 1 Ipeak/Irms|
|Frequency stability during battery|
|Typical recharge time||6 hours|
|Color||Dark grey RAL 7016|
|Communication||3 slots for communications interface / USB / RS232|
|Safety compliance||IEC EN 62040-1; EMC IEC EN 62040-2 C2|
|EMC conformance||EMC 2004/108/CE electromagnetic compatibility Directive|
|Smart Active efficiency||up to 99%|
|Operating temperature||0°C / +40°C|
|Relative humidity||< 90% not condensed|