Figure Elements (Ac Part) - Xtender XTS 900-12 User Manual

17 FIGURE ELEMENTS (AC PART)

Elem. Description
Input supply
A
cable
Output
B
supply cable
Connection
C of the
neutrals
Differential
D circuit
breaker
Earth-neutral
E connection
bridge
AC output
protection
F
devices for
the Xtender
G Generator
Protection
devices at
H
the Xtender
input
Connection
K
plug / socket
S Secured grid
Non-secured
T
grid
U Public grid
User manual
Comment
The cross-section is defined by means of the maximum current at source and
the protection device (H). In multi-unit systems, cables (A) of the same phase
must have the same length and cross-section (see comment fig. 12-2/3).
In multi-unit systems, cables (B) of the same phase must have the same length
and cross-section (see comment fig. 12-2/3). The cross-section must be selected
by means of the Xtender's output current given on the type plate and the
protection device selected for the input (see fig. 1a).
See sect. 4.2 - p. 17.
In a fixed installation where the neutral is connected to the earth at a single
installation point upstream of the Xtender, it is permissible to carry out a
connection of the neutrals in order to preserve an unchanged earthing system
downstream, independent of the operating mode of the Xtender. This presents
the advantage that the downstream protecting ground fault devices remain
functional.
This connection (C) is not permitted if a socket is installed upstream of the
Xtender.
A protection device can be installed downstream of the source (G or U)
according to the local requirements and in compliance with the applicable
regulations and standards.
The neutral is earthed at a single point of the installation, downstream of the
source and upstream of the protection device(s) at the default current (DDR).
When several sources are available, each source must have an earthed
neutral. If the source has to be retained with an isolated earthling system (IT) the
applicable local provisions and regulations must be applied.
A protection device dimensioned depending on the cable cross-section used
may be installed downstream of the Xtender (main circuit breaker before
distribution). The cable cross-section is to be dimensioned according to the
calculation table of maximum output current (fig. 1). The internal current
limitation value of the Xtender is stated on the type plate Fig. 1b (35).
The generator is dimensioned according to the requirements of the user. Its
rated current will determine the adjustment of the parameter {1107} "maximum
current of the AC source".
The protection device at the input of the Xtender must be dimensioned
according to the power output of the source at the cable cross-section used. It
will not exceed a calibre equivalent to the input current "I AC-In" given on the
type plate of the unit Fig. 1b (35).
If the Xtender is connected to an AC source by means of a plug, the
connection cable must not exceed a length of 2 m, and the socket must
remain permanently accessible. The socket will be protected by a protection
device of appropriate calibre. The connection of the neutrals (C) is prohibited
in this case.
Distribution to the users supplied by the grid or the generator when this is present
or by the Xtender within the limit of its power output from energy stored in the
battery. This distribution is carried out in conformity with the local standards and
regulations.
Distribution to users supplied exclusively via the present grid or the generator.
This distribution is carried out in conformity with the local standards and
regulations.
The connection to the public grid imposes adherence to the local standards
and regulations at the responsibility of the installer. The installation should, in
principle, be checked and approved by an official body.
V4.6.0
Studer Innotec SA
Xtender
45