10 -
E-51028231XU/BH
2
1
C
B
A
Q4S
D
+ –
+ –
E
F
QF1
Q1
Q5N
Galaxy PW
F
G
Q3BP
Power-circuit wiring diagrams
The single-wire diagrams for typical
UPS installations are given in figures 8
to 11. The heavy lines represent the
cables that must be connected (see the
table in the previous chapter for the
required cross-sectional areas of the
cables).
◗
see figure 8 for a single-UPS
Galaxy PW unit;
◗
see figure 9 for a two parallel Galaxy
PW units combined for redundancy.
◗
see figure 10 for a two parallel Galaxy
PW units combined for higher output;
◗
see figure 11 for a Galaxy PW
frequency converter without a battery;
Key for figures 8 and 9:
1: normal AC source,
2: bypass AC source,
A: the rectifier/charger module,
B: the inverter module,
C: the static-bypass module,
D: the battery cubicle next to the
Galaxy PW UPS cubicle,
E: any additional battery cubicles,
F: the equipotential-bonding
connection between cubicles,
G: K3N contactor or output static-
switch module.
Fig. 8
Fig. 9
2
1
C
B
A
Q4S
D
+ –
+ –
E
F
QF1
Q1
Q5N
Galaxy PW
F
G
2
1
C
B
A
Q4S
D
+ –
+ –
E
F
QF1
Q1
Q5N
Galaxy PW
F
G
2
Q3BP
Q3BP
Galaxy PW single-UPS unit
Galaxy PW parallel connection for redundancy
Installation
(cont.)
(qualified personnel only)
Summary of Contents for GALAXY PW 100 kVA
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