Nedap PowerRouter PR30S Mode d’emploi
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PowerRouter application guideline
Technical information about a self-use installation
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Contents
Introduction ..................................................................................................................... 3
Step 1. Assembly............................................................................................................. 4
Step 2. PowerRouter AC connection............................................................................... 5
External relay for the backup power supply .................................................................... 8
External relay for load management................................................................................ 9
Step 3: Connecting the sensor...................................................................................... 11
Step 4: Connecting the solar strings ............................................................................. 14
Step 5: Connecting the batteries................................................................................... 17
Step 6: Connecting the internet connection.................................................................. 23
Step 7: Initialising the PowerRouter............................................................................... 25
Three-phase self-use system ........................................................................................ 27
Glossary ........................................................................................................................ 28
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Introduction
This document explains, step-by-step, how to install a PowerRouter with batteries (PowerRouter Solar Battery
– PRxxSB-BS) to create a self-use system. It also describes important aspects that must be considered during
installation.
The steps in this document are based on the standard procedure for connecting the system. Detailed
information about the installation can be found in the installation manual that comes with the PowerRouter. That
manual can be downloaded from www.PowerRouter.com. Nedap recommends you read this manual thoroughly
before beginning the installation.
If you have any questions during con guration and installation, please get in touch with your local PowerRouter
Business Partner.
The PowerRouter is intended for use in a single-family household with a maximum service entrance rating of
13.8 kVA. The PowerRouter is the core element of the self-use system, as shown in the following section.
Figure 1: Schematic depiction of a self-use system with PowerRouter
017763
017763
LOCAL OUT
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Step 1. Assembly
Important considerations
> The ingress protection rating of the PowerRouter is IP20 (protected against objects >12.5 mm; not protected
against water)
> The PowerRouter must be installed in a well-ventilated room in which the temperature is maintained between
-10 and 40 °C.
> Maintain a gap of 30 cm above and below the PowerRouter to allow sufcient ventilation.
> Maintain a gap of 80 cm above and below the PowerRouter when two systems are mounted one above the
other.
First attach the supplied mounting bracket to the wall. A drill template is provided to help you determine where
the holes are to be drilled for the mounting bracket. Use mounting hardware suitable for the wall to which the
PowerRouter is being attached.
Attach the PowerRouter to the bracket, as shown below.
Figure 2: Attaching the PowerRouter to the mounting bracket
4 x
2 x
Drill template the PowerRouter
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Step 2. PowerRouter AC connection
The PowerRouter is a 1-phase inverter that is connected to the utility grid via the ‘AC grid’ connection. Figure
3 is a simplied technical diagram of a self-use system based on the PowerRouter. Although not shown in this
drawing, circuit breakers and a master switch must be installed.
The PV counter, designed as an optional extra for the PowerRouter, registers the amount of energy derived from
the PowerRouter. The amount of energy fed into the grid and the amount used from the grid are measured using
the bi-directional (generation/consumption) meter. These three values enable you to calculate the percentage of
self-use.
Figure 3: Technical diagram of a self-use system
0 1 7 7 6 3
0 1 7 7 6 3
AC GRID CAN
300A
25A
16A
Sensor
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Optional backup power supply
The PowerRouter provides users with a self-use system with backup power supply which intervenes in the
event of a power outage. The PowerRouter has two AC connections: an AC GRID and an active AC LOCAL
OUT. In the event of a grid failure, the PowerRouter will switch selected loads over to AC LOCAL OUT via an
external 230V relay*, providing them with power.
*Recommended external relay UK: chint – NCI – 9508 – 230 VAC or an equivalent type
Recommended external relay rest of Europe: PRA1RLY available from your local PowerRouter distributor
The mains power supplied to the PowerRouter is connected to the AC GRID terminal (see gure 4) and must be
between 180 and 264 VAC at a frequency of 45 to 55 Hz. Backup power is provided from the AC LOCAL OUT
connection, and the attached electrical load must be one or more 1-phase devices.
017763
017763
AC
GRID CAN
AC
LOCAL
OUT
300A
25A 25A
230 Vac
95A
16A
Figure 4: Connection diagram for a 1-phase self-use system with backup power supply
Sensor
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Earthing and current system
The PowerRouter is compliant with the following
earthing systems: TN-S, TN-C, TNC-S or TT.
AC fuse
Nedap recommends that you add a 16 A circuit breaker
with B or (preferably) C characteristics to the AC GRID
line connection between the PowerRouter and the
electric utility meter. We also recommend installing the
same type of 16 A circuit breaker in the AC LOCAL OUT
line connection. It must be possible for the installation
engineer to switch off the circuit breakers to de-
energise the PowerRouter so work on the system can
be performed safely.
RCD rating PowerRouter type
16 A PR30S
PR30SB-BS
PR37S
PR37SB-BS
25 A PR50S
PR50SB-BS
Cable cross section
Nedap recommends you to connect the PowerRouter in the vicinity of the grid connection and use copper
cables with a minimum cross section of 4 mm2. This eliminates unnecessary losses in the internal system and
also prevents voltage disconnects caused by high grid impedance when supplying a high output current.
The diagram below shows that the PowerRouter must increase the AC voltage in order to feed the generated
electricity into the grid. This is because the impedance of the cable to the on-street transformer plays an
important role in this. However, the home installation is connected to the PowerRouter, so the voltage should
never be too high. The PowerRouter software will decrease the output current when this nears the maximum
permissible voltage (cut-off limit). This functionality is added to avoid any unnecessary cut-off in the event of an
ineffective AC grid.
Figure 6: In uence of grid impedance on AC voltage
Figure 5: AC connection terminals on the PowerRouter
NNL
L
AC GRID AC LOCAL OUT
NO NO
NC NC
250 V
230 V
Street transformer
Grid impedance20A
20V
1Ω
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External relay for the backup power supply
Connecting an external relay
Through use of an external relay, some of the single
phase loads can be connected to the AC LOCAL OUT
connection on the PowerRouter, which provides backup
power during a power outage. This creates a backup
system with a switch-over time of ≥ 1 second providing
the connected loads with an backup with a stable 230
VAC/50 Hz output. The power provided during a power
outage comes simultaneously from the solar energy
that is being generated at that moment and from the
batteries. It is important to note, however, that only
a portion of the loads can be supplied with backup
power, because the reserve capacity of a self-use
system is limited by the available solar energy and the
size of the battery bank.
A benecial aspect of this switching conguration is
that loads draw power from the grid whenever the
PowerRouter is restarted or in standby.
The PowerRouter has two sets of congurable potential-free contacts. When a grid outage occurs, loads are
switched to backup power via an external relay. An advantage to this system is that there is no current owing
through the relay coil during normal use. In addition, the PowerRouter controls the exact moment of switch-
over, which enables it to bring the current provided at AC LOCAL OUT into synch with the mains current as
the grid power is restored. Another advantage is that delay times can be congured, using the PowerRouter
Software Installation Tool*. This makes it possible to prevent the backup power provision from responding to
brief power interruptions (brown-outs).
*For more information about the settings, please consult the PowerRouter application guideline - Software Installation Tool, which you can
download from our website.
Technical data - external relay
The external relay can be any standard, commercially available relay with the technical specications shown
below.
Europe except UK UK
> Coil voltage: 230 VAC > Coil voltage: 230 VAC
> Contact ratings: 40 A for both N/O and N/C contacts > Contact ratings: 95 A for both N/O and N/C contacts
> Contact conguration: 2 contacts, or 2 N/Os and 2 N/Cs > Contact conguration: 2 contacts, or 2 N/Os and 2 N/Cs
> Contact gap: ≥ 3.2 mm > Contact gap: ≥ 3.2 mm
As indicated in the picture above, only single-phase consumers can be connected to AC LOCAL OUT. When
producing backup power, the PowerRouter generates its own AC output which cannot be synchronised with the
other two phases.
Figure 7: Connecting an external relay for backup power
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0 1 7 7 6 3
tuolacolCAdirgCA
L3
NLNCNO
NL
L2L1N
L3
R1 R2
3 4
L2
L1
L
N
N
R7 R8
5 6
A1 A2
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External relay for load management
Connecting the external relay
To increase self-use it is possible to have the PowerRouter
automatically connect larger loads when excess solar
energy is available. Below is a circuit diagram which
shows how the external relay (p/n PRA1RLY) is controlled
by one set of potential-free contacts.
Activating load management
Load management is activated using the Software
Installation Tool. This is done by conguring the
parameters as shown below. These values are based
on the capacity being fed into the grid, which means
that this is power above and beyond what is being used
to charge the battery.
A: The capacity of the consumer to be connected when
extra solar energy is available that is not being used
to charge the battery.
B: The percentage of value A that must be available
before the load will be connected. In this example
the extra load will be connected once at least 100%
of 500 W is being fed back into the grid.
C: The percentage of value A at which the load will
be disconnected (can be set at 20-200%). In this
example, the extra load will be disconnected once
the excess power falls below 20% of 500 W.
D: Delay in seconds before the load is switched on,
once the activation conditions have been met (0-100
seconds).
E: Delay in seconds before the load is switched off,
once the deactivation conditions have been met (0-
100 seconds).
F: The maximum time the load will remain connected,
regardless of the available solar power.
G: The minimum time the load will remain connected,
regardless of the available solar power. Figure 9: Activate load management
Figure 8: Connecting an external relay for load management
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0 1 7 7 6 3
AC grid
L3
NCNO
NL
L2L1N
L3
3 4
R1 R2
L2
L1
L
N
N
5 6
R7 R8
A1 A2
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Connecting alarm to potential-free contact
Once the alarm settings have been congured, the
alarm must be assigned to a set of potential-free
contacts. The terminals for these contacts are labelled
K201 (relay 1) and K202 (relay 2) and are located to the
right of the AC LOCAL OUT connection.
The potential-free contact can be activated in two ways:
1. Normal: The contact closes when the alarm is
activated and opens when the alarm is deactivated.
2. Pulse: The contact opens and closes at the selected
frequency for the congured length of time when the
alarm is activated and does so again when the alarm
is deactivated.
Figure 10: Relay 1 of 2
Autres manuels pour PowerRouter PR30S
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Ce manuel convient aux modèles suivants
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Table des matières
