Salicru SLC X-TRA Series Installation Manual page 8

deactivate the switch MBCB. For models higher than
300 kVA, the equipment does not incorporate this manual
bypass switch and it is only possible to acquire it as an option
for its external installation to UPS enclosure.
•
Inside the UPS there are dangerous voltages, never open
the cabinet, the access has to be done by authorised and
competent personnel. In case of maintenance or fault, con-
sult the closest (S.T.S.).
• Cross cable sections used to supply the equipment and
loads must be accordingly to the nominal current stated in
the nameplate stuck in the equipment, by respecting the Low
Voltage Electrotechnical Regulation.
MBCB
SBCB

RCB

External
batteries
•
All power supply electrical cables of the equipments and
loads, interfaces, etc, have to be fixed to immovable parts,
otherwise they will be exposed to wrenches.
• Take care with the battery terminals because they are not
isolated from the AC input line, existing the risk of dangerous
voltage between the battery and earth terminals.
•
In an optimal installation, the battery cabinet/s will be in-
stalled as close to the equipment as possible, but respecting
the minimum peripheral distanced stated in section 5.3.4,
this way the cable length of the DC voltage connection will
be reduced and consequently the dropping voltage losses
should be kept in mind due to the importance of the battery
operating during the mains failures, although they are mini-
mised.
Logically in the parallel systems, the equipments and their
battery cabinets will be arranged attending the premises
stated in the previous paragraph to this point.
•
In order to avoid a total discharge of the batteries and as a
safety measure after a long power supply break and when
ending the working day, loads and equipment has to be shut-
down by following the described operation.
• For long period of time of disconnection, consider the con-
nection of the equipment once per month for ten hours as
minimum, in order to recharge the batteries, avoiding the irre-
versible degradation of them. On the other hand, the storage
will be done in a fresh and dry place, never outdoor.
8
Maintenance line (manual Bypass) (MB).

Emergency line (Static Bypass).

  
(R)
 
BCB

4.1.1. Safety instructions regarding to
batteries.
• The manipulation and connection of the batteries shall be
done and supervised by personnel with battery knowledge
only.
•
Batteries themselves, are supplied separate from the me-
tallic cabinet, among other reasons, is because the cabinet
is designed to store the batteries but not to support the me-
chanical efforts linked to the transport.
Once the location of the equipment and battery cabinet/s is
finished and always respecting the indications stated in this
(SB)

(SSI)
(I) (T)

Normal operating.

Mains fault.

Operating with non-active inverter (EPO condition to "Off").

Operating over manual bypass.
document, proceed to fit the batteries in the own cabinet
and to make their internal connection, following the supplied
diagram inside the own battery cabinet together with rest of
the auxiliary parts like bolts and nuts, cables or connection
copper bars.
Only personnel with battery and/or DC voltage knowl-
edge, is authorised to make or supervise the connec-
tion of them. It is very dangerous to make these works without
the needed training.
There is a high risk of electrical discharge with serious or very
serious consequences even the death.
• For units requested without batteries, the acquisition, in-
stallation and connection of the batteries will always be
done by the customer and under his responsibilty. The
relative data to the batteries as far as number, capacity
and voltage are indicated in the battery label stuck beside
the nameplate of the equipment, respect these data strictly,
the battery polarity connection and the circuit diagram pro-
vided with this documentation.
Only personnel with battery and/or DC voltage knowl-
edge, is authorised to make or supervise the connec-
tion of them. It is very dangerous to make these works without
the needed training.
There is a high risk of electrical discharge with serious or very
serious consequences even the death.
•
The battery voltage can involve the risk of electric shock and
can produce high short circuit currents. Observe the following
preventive measures before manipulating any terminal block
identified in the labelling as «Batteries».
ˆ Disconnect the corresponding protection elements.
ˆ When connecting a battery cabinet to the equipment,
respect the cable's polarity and colour (red-positive;
black-negative) indicated in the manual and in the
corresponding labelling.


OCB
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