socomec Green Power 100, Руководство по эксплуатации

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ENGLISH
IOMMASGPXX00-GB_01
27
Green Power
100-120 kVA
4
UNPACKING AND INSTALLATION
4.9 UPS PARALLEL CONFIGURATION.
• Parallel connection enhances UPS system reliability, performance and power.
• Operating UPSs are connected to each other by a signal cable B (Fig. 4.9.1-1) which provides a maximum distance
between UPSs of approx. 3 metres and enables the external battery cabinet to be inserted next to each UPS. They
are confi gured diff erently depending on the position they are assigned; for this reason the units have a position
label:
- the “LEFT” label means that the unit must be positioned to the left.
- the “RIGHT” label means that the unit must be positioned to the right.
- the “INTERNAL” label (used only on systems with three UPS) means that this unit must be positioned between the
two other cabinets.
• The power supply of each UPS must be equipped with a protection device as shown in the table in paragraph 3.4.
• The cross section and length of the input and output cables must be identical for all the units .
• The phase rotation must be the same for each unit connected in parallel and also on any external manual bypass
line.
• Cables of the same length and cross section must be used for the connection between the general power switch
A , the switches C and the respective UPS units. The length of the cables from A to each UPS module must not
exceed 25 meters (Fig. 4.9-1).
• The cables from the UPS module to circuit breaker D must be of the same length (max. 20 m with multi-core
cables).
• If a diff erential switch is installed on the mains power switch, it must be inserted upstream from the distribution
panel; it must be a selective type and the trigger value must be 0.5 A by the number of UPS connected in
parallel .
Only activate circuit breaker D after turn off the UPS.
• In order for units connected in a parallel confi guration to operate correctly, control cables are required to exchange
data between both UPS units making up the parallel system. The cables in question are supplied with the UPS in
case of standard parallel setting or are attached to the parallel kit in case of later upgrading of the system.
WARNING!
Parallel confi guration must only be activated by SOCOMEC UPS qualifi ed personnel.