G
AMATRONIC
E
LECTRONIC
I
NDUSTRIES
L
TD
.
26
P+ PREMIUM 60, Installation Guide,
rel.
1.4
3.3.7
Battery
3.3.7.1
BATTERY OVERVIEW
The
Power+ Premium 60
battery bank is used as a backup in the event that the utility ac input fails.
Batteries are charged by the rectifier, which supplies both the inverter and the battery charger.
•
The batteries are housed in an external cabinet next to the
Power+ Premium 60
cabinet.
The batteries should be located as close to the UPS as is practically possible.
•
If your system uses more than one battery cabinet, the voltage and ampere/hour rating of each
cabinet must be identical.
•
When defining the battery capacity to the system (“Setup > Battery > Battery capacity”), enter the
ampere-hour value of a single battery cabinet, even if you are using multiple battery cabinets.
A diagram of Gamatronic’s battery cabinet for the Premium 60 can be seen in Figure 3.
A diagram of the internal wiring of Gamatronic’s battery cabinet is shown in Figure 22 below.
Fast-acting fuses (semiconductor fuses)
must be used between the battery and the UPS.
For example, the Bussmann “FWH” fuse.
The batteries cabinet(s) are connected to the system by heavy duty cables.
Care must be taken to
ensure that the cables are connected to the UPS with correct polarity.
Overall voltage of the batteries may be greater than 800 Vdc plus-to-minus, i.e., over +400 Vdc and –400
Vdc with respect to ground/earth. Safety precautions must be observed whenever connecting the battery to
the UPS or when servicing the battery cabinets.
WARNING: When connecting the battery cabinet to the UPS:
the UPS’s ac input circuit breaker must be in the OFF position, AND
the battery cabinet circuit breaker(s) must be in the OFF position.
WARNING: After connecting the battery cabinet to the UPS, do not turn on the battery
cabinet’s circuit breaker until the UPS’s AC INPUT circuit breaker is turned on
.
Connect the cables from the external battery banks to the terminals labeled “DC INPUT” or “BATTERY” on
the lower rear of the UPS (see Figure 19).
Protect the batteries from moisture, dampness, and foreign substances.
The temperature of the battery's surroundings influences the batteries' useful lifetime.
Table 4: Battery lifetime vs environmental temperature
E
NVIRONMENTAL
TEMPERATURE
A
CHIEVABLE PERCENTAGE OF
BATTERY
'
S RATED LIFETIME
20 °C
100 %
30 °C
50 %
40 °C
20 %
