Installation And Start-Up; Assembling Instructions - Linz electric E1X Serie Instrucciones Para El Uso Y Mantenimiento

OVERLOADS: A 10% overload for one hour
every six our is normally accepted.
Mechanical features: Casing and covers are made
of aluminium alloy which holds out against vibra-
tions. The shaft is made of high-tensile steel.
The rotor is particularly sturdy to hold out against
the runaway speed of the drive motors.
It is equipped with a damping cage which allows
satisfactory operation even with single-phase, dis-
torted loads. Bearings have lifelong lubrication.
Operation in particular settings: If the alternator
is going to be used at more than 1000 m above
sea-level, a 4% derating per each 500 m increase
will need to be operated. If ambient temperature
exceeds 40°C a 4% derating per each 5°C increase
will need to be operated.
INSTALLATION AND START UP
The following start up and control operations
should be carried ou only by qualified personnel.
⇒ ⇒ ⇒ ⇒ ⇒ The alternator must be installed in a well venti-
lated room. Ambient temperature should not ex-
ceed standard recommended values.
⇒ ⇒ ⇒ ⇒ ⇒ Particular attention must be paid to ensure that
air inlets and outlets are never obstructed.
While installing the alternator it is important to
avoid direct suction of warm air coming from the
alternator's outlet and/or from the prime motor.
⇒ ⇒ ⇒ ⇒ ⇒ Before starting up the alternator it is advisable
to check (visually and manually) that all termi-
nals in every terminal board are properly
clamped and that the rotation of the rotor in not
blocked in any way. If the alternator has not been
used for a long time, before starting it up it is
recommended to test the windings insulation
resistance to earth, keeping into account that every
single part has to be insolated from the others
In case of electronic or mixed regulation,
disconnect the electronic voltage regulator
of the alternator before to test the insulation
resistance to earth of the windings with a megger
or other high voltage instruments; high tensions
of the test instruments can damage the internal
components of the electronic regulator.
Normally, windings having resistance to earth 1
M are considered suf ficiently insulated. If windings
resistance is lower than 1M at 500V, insulation
will have to be restored by drying the winding (using,
for example, an oven at 60°-80°C temperature, or
by making circulate through the wiring a proper
value of current obtained from an auxiliary source).
It is also necessary to verify that the alternator's
metallic parts, and the mass of the entire set are
connected to the earth circuit and that the latter
satisfies any applicable legal requirements.
Mistakes or oversights concerning
earthing may have fatal effects.

3. ASSEMBLING INSTRUCTIONS

Assembling should be carried out by quali-
fied personnel after reading the manual.
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B3/B14 Construction Form
The B3/B14 construction form requires the use of a
flexible coupling between the drive motor and the
alternator.
The flexible coupling should not originate any axial
or radial forces during operation, and will have to be
mounted rigidly on the alternator shaft end. Please
follow the instructions below while assembling:
1) Apply the flexible coupling and the adaptor on
the alternator as shown in Figure 1a.
Fig. 1a
When positioning the flexible coupling, remem-
ber that once coupling is over the rotor has to
expand itself axially towards the coupling located
on the non-driving end. To make this possible it
is necessary that after assembling the shaft end
is positioned according to the cover pattern, as
illustrated in Figure 1b.
Fig. 1b