Nedap PowerRouter PR30S Application Guideline

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Batteries from Nedap
Nedap supplies batteries manufactured by Hoppecke. Each battery bank comes complete with external
housing with two fuses and a set of cables. We also supply Enersys batteries which also include a set of cables
and a fuse.
Figure 21: Enersys type SBS 190F Figure 22: Hoppecke type OPzV
Battery service life
A battery’s service life is usually expressed in terms of the number of charge/discharge cycles and the depth
of discharge (DOD) value. The number of charge/discharge cycles is high for self-consumption, since energy
is drawn from the battery every night. The number of achievable battery cycles drops the higher the depth
of discharge (see chart). For this reason, the PowerRouter is con gured to limit discharge to 50% by default.
Determination of a battery’s service life should be based on the manufacturer’s speci cations. A graph like the
one shown below ( gure 23) is usually provided to indicate the service life (measured in accordance with IEC
standards).
Looking at the number of cycles, we can assure one cycle per day. This does not include days when the system
is in winter mode. Deducting two months of operation in winter mode, this amounts to 300 cycles per year. A
cycle is understood to be charging from 50% to 100% and discharging to 50% again.
Figure 23: Number of cycles versus DOD value
The display and the graphs for the PowerRouter do not show the depth of discharge (DOD), but rather the
charging status. This is 100% when the battery is fully discharged and 0% when fully charged.
When used for backup power, the battery can discharge to a lower depth than for self-use. At that point more
energy is available from the battery. The DOD can be con gured using the Software Installation Tool.
When using a 3-phase sensor, Nedap recommends limiting the level to which the battery can discharge. This is
to avoid discharging the battery too quickly so that the C10 value no longer applies.
100
0
10000
11000
12000
9000
8000
7000
6000
5000
4000
3000
2000
1000
20 30 40 50 60 70 80
90 100
SBS 190F
OPzV

Nedap PowerRouter PR30S Specifications

General

Brand	Nedap
Model	PowerRouter PR30S
Category	Inverter
Language	English