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ABB DPA UPScale ST120 - Page 13

ABB DPA UPScale ST120
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Modifications reserved
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Battery terminals
+,N,- Battery Terminal
Provides a connection between the external
battery and the UPS
Battery circuit breaker
FX-1 Battery circuit breaker Module 1 Battery overcurrent protective device (MCB).
FX-2
Battery circuit breaker Module 2
Each power module has a battery breaker
FX-3
Battery circuit breaker Module 3
FX-4
Battery circuit breaker Module 4
FX-5 Battery circuit breaker Module 5
FX-6
Battery circuit breaker Module 6
FX-7
Battery circuit breaker Module 7
FX-8
Battery circuit breaker Module 8
FX-9 Battery circuit breaker Module 9
FX-10
Battery circuit breaker Module 10
Maintenance bypass switch
IA1 Maintenance bypass switch
The manual bypass switch connects the load
direct to the bypass input supply when it is
closed (ON). The UPS is isolated for services or
maintenance work
Power Modules
A001 Power Module 1
The power module has a rated power of 10kW or
20kW.
A002 Power Module 2
It has a decentralized parallel architecture
(DPA) consisting of
A003 Power Module 3 -Rectifier
A004
Power Module 4
- DC boost converter
A005
Power Module 5
- Inverter
A006 Power Module 6 - Static bypass
A007 Power Module 7 - Control logic
A008
Power Module 8
-LCD control panel
A009 Power Module 9
The max number of modules inside the frame,
depends of the chosen cabinet.
A010 Power Module 10
Internal battery modules
Battery Module
Each battery module has the capacity to
take up to 10 VLRA battery blocks of 12 V
7/9 Ah. Max number of battery blocks per
power module is 50. The internal battery
modules are only available for ST40 and
ST60 UPS model
Backfeed protection
K1
Mains backfeed contactor
(option)
Prevents the occurrence of any hazardous
voltage at the rectifier mains terminal in the
event of an AC failure due to backfeed from
the rectifier modules powered by the battery
K2
Bypass backfeed contactor
(option)
Prevents the occurrence of any hazardous
voltage at the bypass input terminal in the
event of an AC failure due to backfeed from
the inverter modules powered by the battery

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