Legrand ARCHIMOD HE 60 kVA [4/14] General requirements
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Legrand ARCHIMOD HE 60 kVA [4/14] General requirements

Legrand ARCHIMOD HE 60 kVA [4/14] General requirements
4 di 14
1 GENERAL REQUIREMENTS
1.1 Subject and agreement type
Whit this tender it is asking the best offer to supply Nr. XX three phase UPS with following technical
specifications:
! Nominal Power: 60.000 VA – 60.000 W– Power Factor (cosϕ): 1;
! Topology: On Line Double Conversion VFI;
! Technology: Hi frequency PWM;
! Passing trough Neutral;
! Modular Architecture based on 6700VA Power Modules;
! Possibility to configure the system in N+X internal redundancy in the inverter cabinet;
! Possibility to remove and replace power and battery modules without switch the load on bypass
! Equipped with batteries type: lead acid, sealed, free maintenance, VRLA, installed into the system or
in a dedicated external battery cabinets. Batteries must guarantee a minimum back up time of xx
minutes at 80% of the applied load with specific characteristics described in Technical Specs
Table.
1.2 Conditions
The offer must comply with requirements presented in this tender, specifying eventual deviations.
Deviations must be indicated in the offer documentation; on contrary the requirements will be considered
full covered by offered equipment.
2 GENERALI SPECIFICATIONS
2.1 On Line Double Conversion VFI
The Topology of the UPS must be VFI (Voltage and Frequency Independent accordingly with
classification mentioned in the EN- IEC62040-3 Standard), in order to guarantee filtered and stable
output voltage to the load, independently from the input voltage. This means that the output is obtained
by two converters in cascade. The first converter rectifies the AC input voltage, the second converter
(Inverter) transforms the DC voltage, coming from the rectifier, in AC voltage to supply the load.
This double conversion allows to completely clean eventual disturbs from the mains.
In case of anomalies in the input voltage, the DC voltage, which supply the Inverter, can be obtained ,
thought a booster circuit, from batteries. In this way the output is always guaranteed with continuity.
In case of overloads or faults, the automatic static by-pass guarantees the load supply.
2.2 Modularity
The UPS must have modular architectures based on identical power modules which can be interchanged
and connected in parallel, inside the UPS cabinet.
Similarly also batteries must be contained in battery modules (Battery drawers) identical and
interchangeable, to be installed in the system in series and parallel in order to obtain the correct battery
voltage and required back up time.
It will be not accepted a system where one or more modules are kept in stand by just as spare to be
used only in case of another module failure.
Power modules will be equipped with control and self diagnostic circuits, in order to easily individuate the
faulty module and the specific failure inside it.
Each Battery drawer will contain 7 batteries with nominal 12Vdc, connected in order to have two strings,
one with 48Vdc (four batteries) and the other one with 36Vdc (three batteries).
In this when battery drawer is removed from the cabinet there are no dangerous voltage for the user
(dangerous DC voltage are bigger than 50V as indicated in the EN60950 standard).
Either Power Modules and Battery drawers must be lighter than 18kg in order to be managed, in service
and maintenance, by only one person.
2.3 Redundancy N+X
The UPS must be configurable as N+X power redundant system, with modules of 6700VA contained in
same cabinet either for single phase than for three phase run.

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