Xtender XTS 900-12, Руководство пользователя

Страница: 43 / 56

Studer Innotec SA
Xtender
User manual V4.6.0 43
Fig. Description and comment
10c
Installation example in a boat, with isolation transformer
Characteristic: With several power sources, like shore connection and on-board generator,
a switchover (X) must be installed, to safely switch between the different voltage sources 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.
Highlight(s): In a hybrid installation, the sources for recharging a battery (k-m) are connected
directly to the batterie via their own regulator and their own protective device. This does not
interfere with the Xtender charger.
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 for Xtender 3
4. The AC input for each Xtender must be protected individually by a protection device (H)
of the appropriate size but max. 50A (XTH and XTM) or 16A (XTS).
5. The protection device at the output of the Xtender (F) can be shared and should be sized
given the sum of the currents of the devices in parallel.
6. In a multi-unit system, the functionality dedicated to the remote entry (sect. 0 - p. 31) must
be the same for every unit. Only 1 unit has to be wired and the function is applied to every
unit of the system.
13
Example of three-phase cabling of 3 Xtenders – three-phase input
Highlight(s): When 3 Xtenders are wired to form a three-phase grid, the wired 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 sect. 8.1 – p. 34.
The comments for fig. 12 - 4 to 6 are valid.
14
Example of three-phase cabling of 3 Xtenders – single-phase input
Highlight(s): 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 AC-In).
It is vital to determine and select the phase for each Xtender.
The comments for fig. 12 are valid.
15
Example of three-phase, input and output wired, with reinforced phase
Highlight(s): 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 wired 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.
16
Example of cabling of 9 Xtenders in three-phase and parallel – AC part
Special feature: In fixed high power installations, it is advised that a shared neutral be
retained, distributed to all parties in the grid (see (C))
The comments for figs. 12 to 15 are valid.
17 Example of cabling of 9 Xtenders in three-phase and parallel – DC part (distribution bar)
18 Example of cabling of 9 Xtenders in three-phase and parallel – DC part in star formation
19
Connection of remote controls RCC-02/-03
A maximum of 3 remote controls can be attached to any Xtender system with 1 or more
Xtender units.