288713405
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1)
Verify that the UPS’s switches are totally at “0” position.
2)
Connect the AC input supply cables coming from the input mains distribution panel to the B
terminals as in Fig. 3-2-c,d,e.
ATTENTION!!! PLEASE BE SURE OF CORRECT PHASE SEQUENCE.
If there is a phase sequence fault, A21/A39 “ROTATE PHASE” message appears on the front
panel and the UPS can’t work.
THE CORRESPONDING AC INPUTS OF BOTH UPS’s (U3-V3-W3) MUST BE EXACTLY OF THE SAME PHASE.
3)
Connect the UPS output cables from the output terminals to the load distribution panel.
ATTENTION!!! For proper load sharing during parallel operation the cables between the
AC distribution panel and the AC output terminals of one UPS must be
exactly the same size and length as the cables between the distribution
panel and the AC output terminals of the second UPS.
4)
Make the connection of the battery groups. Please look at the 3.3 Battery Installation item for it.
Figure 3-2-e
100-120-160-200 kVA UPS Power Connections
A
Output
connections
(To load)
B
Input
connections
C
UPS rectifier and inverter input connections. Normally
these terminals are not used for the input connections.
Split (External) By-pass Connection
a.
Remove the shown links (in the figure)
b.
Connect the R-S-T-N cables to the B terminals
from the external by-pass source.
c.
Connect the mains input R-S-T-N cables to
the C terminals.
d.
The external by-pass’s voltage and frequency
must be suitable With the UPS’s.
S1
These links
must be
removed for
split bypass
system
Battery power
connections
S2
S4
S3
U2
V2
W2
N2
U3
V3
W3
N3
Содержание Pyramid Plus
Страница 1: ...288713405 Operating and Installation manual for PYRAMID PLUS 10 200kVA Uninterruptible Power Systems...
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Страница 38: ...288713405 35 Figure 6 3 a POWER CONNECTIONS OF TWO UPS s FOR PARALLEL OPERATION 10 15 20 kVA...
Страница 39: ...288713405 36 Figure 6 3 a POWER CONNECTIONS OF TWO UPS s FOR PARALLEL OPERATION 30 kVA...