3 Installation
MY-A Series (10kVA-20kVA) UPS
User Manual
38
This series UPS's battery input adapt positive and negative battery group (battery group has 8~10
positive cell and corresponding negative cell, which 12V/cell, default has 10 positive cell and
corresponding negative cell).
Figure3-19 shown the 10kVA wiring method: one battery cabinet has 20 cells and one 3P breaker, the
external wiring includes BATT.+, BATT.- and BATT. N.
Figure3-20 and Figure3-21 are shown the 15kVA/20kVA wiring methods.
Wiring methods one: there are 20 cells separately connect to two external battery port, every
battery cabinet has one 3P breaker, the external wiring includes BATT.+, BATT.- and BATT. N,
as shown in Figure3-20.
Wiring methods two: there are 20 cells connect to each external battery port, every battery
cabinet has one 3P breaker, the external wiring includes BATT.+, BATT.- and BATT. N, as shown
See Table3-2 for selection of breaker capacity.
10kVA
……
NO.10
NO.9
NO.1
NO.8
NO.20
NO.19
NO.11
NO.18
+
-
……
+
-
+
-
-
UPS
BATT. +
BATT. -
+
BATT. N
B
a
tte
ry
c
a
b
in
e
t
DC breaker
INPUT
A
B
C
N
BYPASS
A
B
C
OUTPUT
A
B
C
N
EXTERNAL
BATTERY
+
N
-
N
+
-
+
-
+
-
-
+
Figure3-19
Wiring diagram of 10kVA
The wiring position of 10kVA external battery is on the wiring terminal bar.