4–20
INSTALLATION
U P S M A I N A C
INPUT (MAINS1)
BYPASS AC
INPUT (MAINS2)
Q1
RECTIFIER/BATTERY
CHARGER
INVERTER
Q4S
STATIC SWITCH
Q3BP
Q5N
UPS
OUTPUT
TERMINALS
BATTERY
TERMINALS
HA32A UPS
HA32C/D
UPS AUXILIARY CABINET
ISOLATION
TRANSFORMER
CB1
PROVIDED
BY
OTHERS
JUMPER
CABLES
∆
Y
MKV-A2068-91
Figure 4–9
UPS Input and Bypass Input Isolation Transformer Configuration
4.4.1.3 Connecting the Isolation Transformer for the UPS Bypass AC Input (MAINS2)
Only
Connect the four cables from the UPS Auxiliary Cabinet marked A, B, C, and N to the
bypass ac input busbars marked A, B, C, and N, respectively (refer to Figure 4–10).
The input to the UPS Auxiliary Cabinet is jumpered from the main ac input (MAINS1)
busbars in the UPS cabinet. This method requires one ac feeder.
UPS MAIN AC
INPUT (MAINS1)
BYPASS AC
INPUT (MAINS2)
Q1
RECTIFIER/BATTERY
CHARGER
INVERTER
Q4S
STATIC SWITCH
Q3BP
Q5N
UPS
OUTPUT
TERMINALS
BATTERY
TERMINALS
HA32A UPS
HA32C/D
UPS AUXILIARY CABINET
ISOLATION
TRANSFORMER
CB1
PROVIDED
BY
OTHERS
∆
Y
MKV-A2215-91
Figure 4–10
UPS Bypass Input Isolation Transformer Configuration
An alternative method for connecting the isolation transformer to the bypass ac input in
the UPS cabinet is shown in Figure 4–11. This method requires two ac feeders.
NOTE
A separate three-wire source must be run to the UPS main ac input (MAINS1)
connections.
Summary of Contents for HA3000
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