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Backup UPS
+
-
+
-
L1
B_L
N
U
V
W
L
N
Figure 2-11（a） Wire connection for 10kVA Master-slave hot standby UPS
E1-20010329-C-1.0
B_N
+
-
+
-
Output neutral line of Backup UPS is connected to the N
terminal of Master's bypass
Output phase line of Backup UPS is connected to the L
terminal of Master's bypass
N
U
V
Output GND in Parallel
Input GND in Parallel
Input Neutral line in Parallel
Input U phese line in Parallel
Input V phase line in Parallel
Input W phase line in parallel
Chapter 2 Installation
17
Master UPS
L1
B_L
B_N
W
L
N
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