Studer Innotec XTH 5000-24 - Manual (Page 28)

STUDER Innotec Xtender
Installation and operating Instructions Xtender V1.3 Page 28
Fig. Description and comment
10a Example of installation in a vehicle (AC part)
Special features: The connection of the neutral (C) is not permitted (presence of a socket
upstream). The earth-neutral connection is absent in inverter mode (neutral stand-alone
system). The safety is guaranteed by the equipotential bonding (frame). The automatic re-
establishment of the earth-neutral connection downstream of the device in inverter mode
can be programmed. Consult the table of figures, item (V).
See also chapter 4.2.1 – p. 10.
10b Example of installation in a boat without an isolation transformer (AC part)
Special feature: Where there are multiple sources, for example connection to the dock and
on-board generator, a source reverser (X) guaranteeing switching with phase and neutral
interruption must be installed.
10c Installation example in a boat, with isolation transformer
Characteristic: With several power sources, like shore connection and onboard generator,
a switchover (X) must be installed, to safely switch between the different voltage supplies
with guaranteed interruption of the phase and neutral conductors. Moreover, an earth
must be formed (E) after the isolation transformer.
11 Example of a hybrid installation:
This is the most common system used to establish an emergency system or a hybrid
system (grid-remote sites) ensuring a single-phase supply from a generator and/or the
battery.
Special feature: In a hybrid installation, the sources for recharging a battery (k-m) are
connected directly to the batterie via their own control system. This does not interfere with
the Xtender charger. See also chapter 4.1.1 – p. 9.
12 Example of parallel connection of 2 or 3 Xtenders
1. Only Xtenders of the same power output may be connected in parallel.
2. Wiring precautions: The cable lengths and cross-sections of AC in input (A) and AC
out output (B) must be the same for all inverters in parallel in the same phase.
3. Variant: The sum of the lengths of the cables (A1) + (B1) of Xtender 1 must be the
same as the sum of the lengths of the cables (A1) + (B1) of Xtender 2, and ditto for
Xtender 3
4. The AC input for each Xtender must be protected individually by a protection device
(H) of the appropriate size.
5. The protection device at the output of the Xtender (F) can be shared and of
appropriate calibre at the sum of the currents of the devices in parallel.
6. If necessary, the ON/OFF remote control (r) will be implemented on only one of the
devices of the installation and suspends or authorises the operation of all the Xtenders
in the installation.
13 Example of three-phase cabling of 3 Xtenders – three-phase input
Special features: When 3 Xtenders are cabled to form a three-phase grid, the cabled
phases at the input determine the jumper position for selecting the phase (10). It is vital to
determine and select the phase for each Xtender.
See also chapter 6.3.1 – p. 22.
The comments for fig. 12 - 4 to 6 are valid.
14 Example of three-phase cabling of 3 Xtenders – single-phase input
Special feature: In a three-phase configuration, if only one phase is available as a source,
only one Xtender will be wired on that source. Phase 2 and 3 will be permanently fed from
the two other units connected only to the battery (not connected to ACin).
It is vital to determine and select the phase for each Xtender.
See also chapter 6.3.1– p. 22.
The comments for fig. 12 are valid.
15 Example of three-phase, input and output wired, with reinforced phase
Special feature:
This installation allows a three-phase supply with a reinforced phase The
reinforced phase may be incorporated on two or even three inverters in parallel. The
protection device at the output on which 2 or 3 Xtenders are cabled must be calibrated
according to the sum of the maximum currents of the devices in parallel.
The comments for fig. 12 to 13 are valid.