FIGURE ELEMENT'S (AC PART). Studer Innotec XTH 6000-48, XTH 5000-24, XTH 8000-48

STUDER Innotec Xtender

13

Figure element's (AC part)

Elem.

Description

A

Comment

Input supply cable The section is determined 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 section (see comment fig. 12-2/3).

C cable

Connection of the neutrals same length and section (see comment fig. 12-2/3). The 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 chapter 4.2 - p. 10.

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 choice shows the advantage of keeping the differential protection devices downstream of the

Xtender.

This connection (C) is not permitted if a socket is installed upstream of the Xtender. breaker

E Earth-neutral connection bridge

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 earthing system (IT) the applicable local provisions and regulations must be applied.

F AC output protection devices used may be installed downstream of the Xtender (main circuit for the Xtender breaker before distribution). The cable section is to be dimensioned according to the calculation table of maximum output current (fig. 1).

The Xtender has an internal current limitation the value of which is

G Generator 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 configuration adjustment

{1107} “maximum current of the AC source”. at the Xtender dimensioned according to the power output of the source at the input cable 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).

J socket

L

P

R

S Secured grid 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.

Installation and operating Instructions Xtender V1.3 Page 30