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Chapter 2 Installation 17
E1-20010329-C-1.0
Figure 2-11（a） Wire connection for 10kVA Master-slave hot standby UPS
Input GND
-
N
+
WVUNL
+-
Backup UPS
B_LL1 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
-
VUN
+-+
WLN
B_LL1 B_N
Input Neutral line
Input V phase line
Input V phase line
Input W phase line
Output phase line
Output Neutral line
Output GND