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Highly efficient power supply and backup power supply solutions to telecommunications, information and industrial technologies.

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UPS Sentry Multistandard



Sentry Multistandard
Multi Sentry is designed and built using state-of-the-art technology and components. It is controlled by a DSP (Digital Signal Processor) microprocessor, to provide maximum protection to the powered loads with no impact on downstream systems, and optimised energy savings. Its highly flexible design allows full compatibility with both three-phase and single-phase power supplies, thus eliminating problems in connecting the UPS to the system.
SENTRY MULTISTANDARD series includes 10-15-20kVA single/singlephase, three/single-phase and 10-15-20-30-40-60-80 kVA three-phase models, and uses on-line double conversion technology (VFI). The load is powered continuously by the inverter with a filtered, stabilised and regulated sinewave supply. The input and output filters considerably increase the immunity of the load to mains disturbances and surges, even on bypass.

 General Features

Low Power Consumption

  • On-line Mode: up to 92% efficiencycan be achieved due to the use of IGBT technology, increasing to 98% in one of the other operating modes
  • Economy Mode: uses Line Interactive (VI) technology to power less critical loads from the mains supply for certain periods
  • Smart Active: if the mains supply is out of range, the UPS will power the load from the inverter as an On-line UPS. When the mains supply returns to within range again, the UPS will monitor this for a certain period before selecting Line Interactive operation

 

Simple To Install

  • Option to connect the UPS to singlephase or three phase mains supplies (SM series)
  • Panel adjustment to offset voltage drop down long cable runs

 

Maximum Reliability And Availability
Connect up to 8 units in parallel for power capacity or redundancy

High Level Battery Reliability

  • Automatic battery test
  • Recharge compensated for temperature
  • Automatic or manual rapid charge (boost) – duration programmable

 

Maintenance Simplicity = Low MTTR
For the 40 to 80 kVA models, open the door and remove the protective panel (standards requirement) and the power components - mounted on a sliding tray - can be pulled out to provide easy access to all the electrical and electronic components for maintenance and repair work. This particular feature means that the MTTR (Mean Time To Repair) is much lower than traditional UPS designs with less easily reached assemblies, which has longer times due to thecompact size of the products and difficult access to the parts. A large amount of maintenance information is available from the front mimic panel and LCD. In addition system operating parameters are software configurable via a local PC to allow new functions to be added or adjustments made to operating specifications.

Sensitive Supply Compatible
For power supply sources that areparticularly sensitive to harmonics (generator sets or transformers of low power with respect to that of the UPS) it is often a good idea to take action to limit the harmonics injected back into the supply by the UPS.
SENTRY MULTISTANDARD series is also available with built-in active filter using high frequency Isolated Gate Bipolar (IGBT) Technology with Digital Signal Processor (DSP) control. The Active Filter helps to reduce harmonics generated by the UPS into the supply which could disrupt the operation of downstream generators and transformers whose rating is closely matched to that of UPS.

Characteristics

  • advanced technology
    The active filter reduces harmonic distortion of the phase and neutral currents. The Digital Signal Processor (DSP) and the “current mode” instantly control and monitor the input current to maintain a perfect sinewave with less than 4% harmonic distortion
  • maximum efficiency Thanks to the active filter Sentry Multistandard systems have low input distortion even at low loads and their overall efficiency is not affected by generator frequency variations or line impedance
  • reduction of neutral current
    The active filter reduces the input neutrals current by up to 3.5 times their nominal rating to help avoid oversizing input protections and conductors
  • maximum reliability
    Sentry Multistandard systems are extremely reliable. Overall UPS performance is unaffected should the harmonic filter fail
  • excellent capabilities
    Input distortion: (THDi) less than 4% Input power factor: >0.99, efficiency Sentry Multistandard can also be supplied without the Active Filter for installations less sensitive to current harmonics.

Other Characteristics

  • Sentry Multistandard is able to supply loads with power factor from 0,9 capacitive to 0,8 inductive without derating the active power (KW).
  • High level diagnostics: event log with 120 messages, states, measurements and alarms – available from the built-in LCD in several languages
  • Reduced noise levels: high frequency inverter bridge
  • Back feed protection standard: toavoid energy feeding back into themains supply (in compliance with CEI 11-20; DK5600)
  • Power factor correction (input powerfactor, close to 1)
  • By pass may be deactivated to allowoperation as a frequency converter (at 50 or 60 Hz)
  • Emergency operation: the UPS can be set to operate only when the mains fails (for emergency lighting)

Advanced communication

  • Compatible with TeleNetGuard forremote maintenance
  • Advanced, multi-platform communication for all operating systems and network environments: Watch&Save 3000 monitoring and shut-down software included, with SNMP agent, for Windows 9x, ME, NT 4.0, 2000, XP, Vista and 2003 server; Mac OS X, Linux, Novell and most popular Unix operating systems
  • The UPS is supplied with a communications cable for ‘Plug andPlay’ PC connection
  • Double RS232 serial ports
  • Network adapter slot for SNMP agent.
  • Emergency Power Off (EPO) shutdown input contact
  • Remote control mimic panel

Applications

  • Local Area Networks (LAN)
  • Data Centers
  • Servers
  • Cash registers
  • Electromedical devices
  • Emergency devices (lights/alarms)
  • Telecommunication devices
  • e-Business (Servers, Farms,ISP/ASP/POP)

Options

  • Input isolation transformer
  • Active filter
  • LED remote status panel
  • LCD based remote control panel
  • Graphic Display remote control panel
  • Empty batter cabinet for prolonged runtime
  • Additional battery charger
  • Dual input mains