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• Alumen-X SB;
• Alumen-X MD;
• Alumen-X MDS;
• Alumen-X LE;
• Alumen-X LF.
The products listed above have been tested with different load types (resistive load, electronic load, etc.) that
have not been affected by the harmonic distortion of the alternator voltage.
It is your responsibility to verify that the load functionality is not altered by the harmonic content of the above
alternators.
Winding resistences ALUMEN-DUO** (20°C)
Tipo
Power (kV
A)
Stator
Rotore Cap.
Principal LED Excitation
50Hz
60Hz
60Hz
43Hz
60Hz
1 pole
ALUMEN DUO SB
3,5 4,2
1,31
1,56
4,30
0,68
30
ALUMEN DUO MD
5,0 6,0
0,61
0,77
1,49
0,83 35+35
ALUMEN DUO MDS
5,5
6,5
0,61
0,77
1,49
0,83
35+35
ALUMEN DUO LE
7,0 8,0
0,39
0,55
1,10
0,94 35+40
ALUMEN DUO LF
8,0 10,0
0,32
0,45
0,90
1,04 40+40
**:
The Alumen DUO comes with a special winding to work with LED power supplies at 1350RPM.
INSTALLATION AND START UP
The following start up and control operations should be carried out by qualified personnel
only.
⇒
The alternator must be installed in a well ventilated room. Room temperature should not exceed 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 terminals 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 isolated from
the others.
This particular checkup must be carried out using a “Megger” instrument at 500 Vdc.
Normally, windings having resistance to earth ≥ 1 MΩ are considered sufficiently insulated. If windings
resistance is lower than 1 MΩ , insulation will have to be restored by drying the winding (using, for example,
an oven at 60° - 80°C temperature, or having a correct amount of current obtained from an auxiliary source
circulate through the wiring
It is also necessary to verify that the alternator’s metallic parts, and the genset mass are bonded to site
earth and that the earth circuit satisfies any applicable legal requirements.
Mistakes or oversights concerning earthing may have fatal effects.
ASSEMBLING INSTRUCTIONS
Assembling should be carried out by qualified personnel after reading the manual.
CONSTRUCTION OF B2 TYPE
This type of construction involves the direct coupling between the motor and alternator. We suggest you to
assembly as follows:
1. Remove any means for locking the rotor.
2. Attach an eyebolt M8 to the shaft and remove the rotor (Figure 1).
3. Center and secure the discs of the rotor to the flywheel of the first motor by the screws (Figure 2).
4. Center and secure the stator of the first motor to the flange, inserting the case on the rotor to reposition the
bearing in its seat (Figure 3). During this operation, care must be taken not to damage the parts wrapped.
5. Check the correct positioning of the rotor complying with the values shown (Figure 4).
6. Attach the rear cover with the screws (Figure 5).
OPERATION
Connecting load cables connections should be carried out by qualified personnel when the
machine is completely stopped (locked out) load cables are unplugged.
Voltage and output frequency:
These alternators are designed to supply only the voltage and frequency specified in the
rating plate.
Operation in particular settings
If the alternator is going to be used within a soundproof generating set, make sure that only fresh air enters it.
This can be ensured by placing the alternator’s air inlet near the external air intake. You also have to take into
account that the amount of air required by the alternator
ALUMEN
it is 10 m
3
/min.
