The Three phase UPS’s can be divided
into two sections - the first is the units that have a
three phase input and a single phase output, and the
second is the units designed to have both input and
output three phase.
The three phase UPS’s run under a double conversion
design principal. The incoming mains is converted
directly into DC. This DC power is used to charge the
batteries and to drive the inverter, which in turn runs
the load. Should the mains fail the batteries will
simply carry on driving the inverter, and start to
discharge as opposed to charging.
The units have a built in Static By-Pass feature which
enables the machine to transfer the load to normal mains
under certain conditions. There is no break on the
output on transfer to or from the mains.
All of the 3-phase UPS's have the ability to communicate
with the computers connected to them. Standard
communications are via USB but an SNMP card is an
optional extra. |
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- Units can be operated as single units,
paralleled or configured in hot stand-by.
- Automatic & manual battery boost / Monthly boost
/ Current boost.
- Automatic & manual battery test with indication
of result.
- Automatic battery charge voltage compensation
for elevated temperatures.
- Rectifier input frequency range of 45 to 65 Hz ,
auto select.
- Inverter overload capability of 150 %, temp
depending.
- Useable as frequency converters from 50/60 Hz to
16.6,50, 60 or 400 Hz.
- Double static switch.
- Dot matrix LCD display of vital parameter and
basic system control.
- Electronic safety-interlock for manual Bypass
Isolator, preventing damage from incorrect switching
operation.
- Mains isolated on-line design maximizes load
circuit protection.
- Single control card (for any power rating,
configuration or frequency).
- Systems are Multi-Microprocessor controlled to
achieve ultimate reliability.
- Excellent M.T.B.F. figures achieved due to
reduced component count.
- PCB intelligent configurable via PC.
- Novell DB9 and RS 232 interface ports for
monitoring & communication.
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