An Uninterruptible Power
Supply (UPS) for the
power protection of
corporate wide and large
network applications.
The Riello UPS Multi
Dialog Uninterruptible
Power Supply range is
the ideal solution for
computer and telecoms
users wanting a flexible
multiple operating format
power system with advanced
communications features.
There is a 19" rackmount
format product 10-30kVA
and version with a built
in isolation transformer
for critical applications
requiring Galvanic isolation
- 10-20kVA.
10-20kVA single/single
or three/single-phase
10-80kVA three/three-phase
Uninterruptible
Power Supply with multiple operating
modes
The Multi Dialog Uninterruptible
Power Supply series UPS uses double
conversion on-line technology (VFI)
and has several other operating
mode options. Multi Dialog AF systems
incorporate an harmonic filter to
achieve less than 4% harmonic distortion
and a near perfect sinewave absorption
from the mains.
In on-line mode the load is powered
continuously by the inverter to
remove sags, surges and brownouts,
through EMI filters to suppress
transients, spikes and electrical
noise. Even on bypass the load is
routed through the filters so that
the load is not connected to raw
mains.
When the mains fails, the inverter
which is constantly powering the
load simply draws power from the
internal battery to provide complete
protection.
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Uninterruptible
Power Supply
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UPS Operating
Modes
As well as the its on-line operating
mode, Multi Dialog can operate in:
- Economy Mode: uses Line
Interactive (VI) technology
to power less critical loads
from the mains supply for certain
periods. The function can be
set from the front panel keypad
or remotely using software
- 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
- Standby/Off: for security
applications like emergency
lighting where the UPS is switched
on but the loads are powered
through the bypass supply. When
the mains fails or falls outside
a preset range the inverter
automatically powers the load.
This operation is similar to
that of a standby uninterruptible
power supply.
- Frequency conversion: 50
or 60Hz
- Automatic Voltage Stabiliser:
voltage stabilisation with the
inverter and battery completely
disabled.
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Extended Runtimes
As the inverter is rated for continuous operation
this type of uninterruptible power supply can
be used to support large loads for long runtimes
up to and over 7 hours or more in duration.
This can be achieved using battery extension
packs that connect in series to the rear panel
connector on the UPS and/or a generator. When
battery extension packs are used these may have
their own mains powered chargers to maintain
a reasonable recharge time of the complete battery
set. For larger loads consider the Master Dialog.
Whatever the runtime installed there should
be sufficient time for the protected computer
systems to be shutdown in an orderly manner
using the PowerShield software, supplied as
standard, for Windows 95, 98, 2000, 2003, Me,
XP, Mac OSx, 9.x, Linux NT 4.0 operating systems.
Additional remote monitoring can be achieved
using PowerNetGuard on Wide Area Networks or
the Telenetguard remote service monitoring system
with text alerts for site problems, and the
wide range of NetMan SNMP interfaces and MultiCom
adapters available.
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Advanced Communication
- advanced, multi-platform communication,
for all operating systems and network environments:
PowerShield supervision and shut-down software
included, with SNMP agent, for Windows 95,
98, 2000, 2003, Me, XP, Mac OSx, 9.x, Linux,
NT 4.0, Novell operating systems. The UPS
is equipped with a cable for direct connection
to the PC (Plug and Play)
- double RS232 serial port
- network adapter slot for SNMP agent
- EPO (Emergency Power Off) shut down
input contact
remote control panel
Features
- reliable, filtered, stabilised and regulated
sinewave output (double on-line conversion
technology VFI according to EN50091-3 specifications)
with filters for atmospheric disturbance
suppression
- high reliability: IGBT technology, full
microprocessor control with no-break static
and manual bypasses
- 0.8 power factor makes Multi Dialog
suitable for powering ICT and industrial
loads
- high level diagnostics: event log with
128 messages, states, measurements and alarms
- available from the built-in LCD in several
languages
- the UPS may be configured with the RS232
serial port (flash up gradable)
- power factor correction with sinusoidal
input to ensure a low impact on the mains
supply for the single-phase/single-phase
series
- reduced noise levels: high frequency
inverter bridge used (>16 kHz: above audible
range)
- low power consumption up to 92% in On-line
mode due to the use of IGBT technology and
up to 98% in the other operating modes:
“Economy Mode”, Smart Active Mode, and Standby/Off
Mode.
- low harmonic pollution in the Multi
Dialog CLEAN (AF series) the electronic
digital (DSP control) active filter achieve
a very low total harmonic distortion (THDi<4%)
- compact cabinet (internal option)
- high reliability (failure of the active
filter does not affect UPS operation)
- high efficiency: the active filter does
not reduce operational efficiency
- simple to install:
capability to connect the UPS both to single-phase
and three-phase mains supplies
panel to offset voltage drop down long cable
runs
castors for ease of movement (models 10-30kVA)
- maximum reliability and power availability
- connect up to 8 units in parallel or N+1
redundancy, even of different power ratings
power factor correction (input power factor,
close to 1)
- high level battery reliability:
automatic battery test
recharge compensated for temperature
- emergency operation: the UPS can be
set to operate only when the mains fails
(for emergency lighting)
- back feed protection: to avoid energy
feeding back into the mains supply
by pass may be deactivated to allow operation
as a frequency converter (at 50 or 60 Hz)
- easy to maintain (front access)
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Best Priced Riello
Multi Dialog UPS
Next Day Uninterruptible Power Supply
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CALL Our UPS Team TODAY AY
01992 892323 |
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