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Idiomas disponibles
kVA
Alternator
Type
50 Hz
60 Hz
E1S10M
G
5,5
7
1,80
E1S10M
H
7
8,5
1,24
E1S10M
I
9
11
0,92
E1S10L
L
10
12
0,65
E1S11M
A
10
12,5
0,75
E1S11M
AS
11,5
14
0,63
E1S11M
B
13,5
16,5
0,46
E1S13S
C/2
16
20
0,48
E1S13M
D/2
22
27
0,28
E1S13M
E/2
27
32
0,23
E1S13S
A/4
8
9,6
1,58
E1S13S
B/4
10
12
0,97
E1S13M
D/4
13
16
0,61
E1S13M
E/4
16
19
0,46
E1S13M
F/4
20
24
0,38
kVA
Type
50 Hz
60 Hz
V
EXC
E1S10M
G
5,5
7
26
E1S10M
H
7
8,5
29
E1S10M
I
9
11
28
E1S10L
L
10
12
30
E1S11M
A
10
12,5
30
E1S11M
AS
11,5
14
30
E1S11M
B
13,5
16,5
34
E1S13S
C/2
16
20
24
E1S13M
D/2
22
27
24
E1S13M
E/2
27
32
32
E1S13S
A/4
8
9,6
20
E1S13S
B/4
10
12
22
E1S13M
D/4
13
16
26
E1S13M
E/4
16
19
33
E1S13M
F/4
20
24
35
Winding Resistances Ω (20°C)
Aux
Compound
winding
Rotor
I
19,50
2,24
0,270
1,550
21,00
1,83
0,141
1,550
22,70
1,75
0,101
1,550
23,50
1,70
0,085
1,550
22,30
1,60
0,075
1,350
22,30
1,54
0,070
1,350
24,60
1,47
0,043
1,350
10,26
1,20
0,052
0,648
12,30
1,10
0,030
0,648
14,00
0,90
0,019
0,648
5,73
1,49
0,128
0,540
6,82
1,31
0,083
0,540
7,95
1,20
0,046
0,540
9,72
1,07
0,030
0,540
9,86
1,15
0,024
0,540
Rotor Excitation Parameters
No load
Full load
(V)
I
(A)
V
(V)
I
EXC
EXC
EXC
1,30
95
4,00
1,30
111
4,10
1,20
115
4,20
1,30
115
4,50
1,35
114
4,30
1,35
128
4,80
1,35
133
4,45
2,30
86
7,75
1,90
92
7,50
2,20
110
7,50
3,35
56
7,80
3,20
62
7,50
3,15
76
7,70
3,30
89
7,50
3,35
95
7,70
6. VOLTAGE AND OUTPUT FREQUENCY ON THE THREE PHASE ALTERNATORS
These alternators are designed to supply the following voltage:
⇒ 400 V at 50Hz or 480 V at 60Hz with star/neutral connection
II
⇒ 230 V at 50Hz or 276 V at 60Hz with delta connection
7. SINGLE PHASE DUTY OF THREE-PHASE ALTERNATORS
The output power in single-phase, continuous duty is approximately 65% of three-phase output power if
line-to-line voltage is used and 60% (E1S10/E1S11), 40% (E1S13) if phase voltage is used (star connection).
8. VOLTAGE AND REVOLVING SPEED CALIBRATION
The voltage calibration should be carried out by qualified personnel only because of electrocution hazard.
The alternator's output voltage measurement should be carried out at the nominal revolving speed (3000 RPM for 2
poles alternators and 1500 RPM 4 poles).
Our alternators are usually factory set to supply nominal voltage.
Small deviations of the output voltage can be caused by a revolving speed which is different from the nominal one.
Actually, the output voltage changes almost proportionally to the revolving speed, around nominal speed.
To change the no-load voltage of the alternator at a specific revolving speed, it is necessary to operate on the air gap of the
compound transformer as described below (see figure 7).
1) Loosen the tightening of two screw nuts N.
2) Modify the air gap height, considering that:
(A)
a) by increasing it, the voltage increases;
b) by decreasing it, the voltage decreases;
however, small voltage variations can be obtained with a small hammer or a screwdriver on the compound moving part
so as to change the air gap thickness. When the required voltage change exceeds 5%, it is necessary to replace the air
gap insulating material (T) with a suitable one.
3) Once the calibration is carried out, tighten the two screw nuts N.
ATTENTION:
for a correct operation of the alternator, the voltage cannot exceed +/- 5% of the rated value.
9. GENERAL NOTES
Operation in particular conditions
If the alternator is going to be used in a canopy, make sure that only fresh air blows into it.
This can be ensured by placing the alternator's air inlet near the external air intake. Moreover, remember that the required air
flow is (at 50 Hz):
4 m3/min. for E1S10 type alternators
5 m3/min. for E1S11 type alternators
10 m3/min. for E1S13 type alternators
BEARINGS
The bearings of E1S type alternators are greased for life and therefore they do not require maintenances for at least 30000
working hours. When a genset general servicing is necessary it is recommended to wash the bearings with a proper solvent.
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