G-Tec Saturn, Руководство пользователя

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UPS AC
INPUT
/
OUTPUT POWER CONNECTION
In order to choose the cable section for each ups, refer to the chapter in the user manual entitled “Cables section”.
 Connect the power cables L1, L2, L3 and N to the input terminals L1, L2, L3 and N of each UPS.
 Connect the load cables L1, L2, L3 and N to the output terminals L1, L2, L3 and N of each UPS.
Example of parallel connection of three units
When connecting power to UPSs the instructions below must
be followed to ensure a good load share when operating from
bypass:
 Supply cable lengths must be equal: a1 = a2 = a3.
 Output cable lengths must be equal: c1 = c2 = c3.
 a1, a2, a3, c1, c2, c3 must have a minimum length
greater than 3m.
MAGNETO-THERMAL SWITCHES:
To prevent a system failure from impacting on all of the machines present, it is essential that the input of each UPS be protected
by a completely independent magneto-thermal switch which is installed upstream of the machine (for rating of the switches, see
the indications of the UPS manual in the section “PROTECTION DEVICES”).
DIFFERENTIAL SWITCH:
To avoid false alarms, when there are various machines in parallel, one single differential switch upstream of the entire system
must be inserted as indicated in figure B.
Fig. A Fig. B
Input terminal boards IN
Output terminal boards OUT
Input cables lenght a1, a2, a3
Output cables lenght c1, c2, c3