Delta NT Series User Manual

15
Ultron NT Series
MANUAL BYPASS
RESERVE INPUT
OUTPUT
STATIC SWITCH
RECTIFIER INPUT
LOAD
BATTERY BANK
SWITCH
SWITCH
SWITCH
RESERVE
MAINS SWITCH RECTIFIER INVERTER
Power Flow
Power Flow
Power Flow
Power Flow
MANUAL BYPASS
RESERVE INPUT
RECTIFIER INPUT
BATTERY BANK
SWITCH
SWITCH
MAINS SWITCH RECTIFIER INVERTER
Power Flow
Power Flow
UPS1
UPS2
OUTPUT
STATIC SWITCH
SWITCH
Power Flow
Power Flow
UPS1 OUTPUT
UPS2 OUTPUT
RESERVE INPUT
Figure 3-10-b: Status Block of Hot-standby Redundancy (260-500kVA)
In normal condition, the UPS2 supplies the loads. If the UPS2 fails, the static switch
will switch to UPS1 (the reserve AC power of UPS2) without a break of the power
supply. In order to reduce costs, the O/P of UPS1 could simultaneously connect to
UPS2, UPS3, etc..
3.11 Common Battery
To save on costs and installation space, the parallel UPS units can share the same
external battery cabinet(s). Please see Figure 3-11-a and 3-11-b.

Delta NT Series Specifications

General

Brand	Delta
Model	NT Series
Category	UPS
Language	English