This technology is
appropriate for small to medium sized servers or up to 10 computers.
The computer is continuously
supplied through the a voltage regulated mains supply (variations in supply without the
need of batteries, 176V to 264V). If the mains power supply fails the UPS takes over
supply for a period of time determined by the life of its batteries. UPS are normally
supplied with communication and power management software that allows the safe shut down
of the system. The output signal is sinusoidal.
Single-phase supply –
single-phase output.
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(from 1 000 VA to > 1 000 KVA)
Appropriate for all uses
(large number of computers, server groups, automated systems and strategic or industrial
applications).
The above is permanently supplied
by the UPS. In this case the mains supply is continuously regulated and a near perfect
sinusoid is created from an initial constant signal itself generated from the mains supply
(double-conversion). Certain types of these UPS can have the potential for
additional facilities. If a static switch is fitted, this emergency supply ensures
continuous operation, via the mains, in the event of a output power surge, if the UPS
functions are not working or if the battery has run down.
The maintenance by-pass switch
(optional for 1KVA to 4KVA) allows preventative maintenance or fault diagnosis to be
carried out on a machine whilst ensuring the continuation of the power supply from the
mains.
Hard-wiring: Mono. / Mono. –
Tri. / Mono. - Tri. / Tri.
On-Line Double conversion
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(from 6 000 VA to > 1 000 KVA)
Appropriate for all
applications (large number of computer, server groups, mainframes and strategic and
industrial applications).
This technology, patented by APC,
combines the advantages of On-line Double-conversion and Line-interactive.
Its performance also allows substantial savings in overall costs.
In this scenario it is considered
that only ±15% of the output of the mains is out of tolerance. The output is continuously
checked and regulated to achieve a perfect sinusoid output from the UPS. During a power
cut, the batteries take over and ensure the continuation of supply until they run down.
They are also fitted with a static by-pass switch and a maintenance by-pass with mains
continuity.
This equipment is supplied with
APC's PowerChute Plus software or SILCON’s DP-SOFT CDX.
The performances achieved are
outstanding – 95% efficiency, KW=KVA, a power factor very close to 1, an unlimited
peak factor and can withstand a surge of 200% for up to 1 minute.
Hard-wiring: Mono. / Mono.
(from 6KVA to 10 KVA) – Tri. / Tri. (from 10 KVA to 480 KVA).
On-Line Delta-conversion Products
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