Chapter 2 Installation 17
E1-20010329-C-1.0
Figure 2-11
（
a
）
Wire connection for 10kVA Master-slave hot standby UPS
Inpu
t G
N
D
-
N
+
W
V
U
N
L
+
-
Backup UPS
B_L
L1
B_N
Input W phase line in parallel
Input V phase line in Parallel
Input U phese line in Parallel
Input Neutral line in Parallel
Input GND in Parallel
Output GND in Parallel
Output phase line of Backup UPS is connected to the L
terminal of Master's bypass
Output neutral line of Backup UPS is connected to the N
terminal of Master's bypass
Master UPS
-
V
U
N
+
-
+
W
L
N
B_L
L1
B_N
Inp
ut N
eu
tral
li
ne
In
put
V p
has
e l
ine
Inpu
t V pha
se
lin
e
In
put
W
ph
as
e l
in
e
O
ut
pu
t ph
as
e l
ine
O
utp
ut
N
eut
ra
l l
in
e
Out
put
G
N
D
