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The flexible coupling should not cause 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) Fix one of the two flexible coupling halves and the flange to the alternator as shown in Figure 2A. When positioning
the flexible coupling half, remember that once coupling is carried out, the rotor must be able to move axially towards
the non-drive end bearing. To make it possible it is necessary that, once the assembling is carried out, the shaft end,
with respect to the flange, is positioned according to Figure 2B.
2) Place the relevant flexible coupling half on the revolving part of the diesel engine, as shown in Figure 2C.
3) Insert the coupling's rubber blocks.
4) Couple the alternator to the drive engine, firstly by screwing, with suitable screws, the flange to the engine (see Fig. 2D).
5) Fix, using appropriate rubber anti-vibration dampers, the engine-alternator unit to the common bed-plate.
Special attention must be paid not to cause any stretching that may affect the natural alignment of the two machines.
6) Make sure that the alternator's non-drive end bearing has the recommended expansion allowance (min. 2 mm.) and
that it is preloaded by a preload spring.
B2 MOUNTING ARRANGEMENT
This type of mounting arrangement too allows direct coupling of alternator to the drive engine. Please follow the instruc-
tions below when assembling:
1) Check that the rotor is positioned correctly, as illustrated in Figure 3A.
2) Remove rotor's locking components on the non-drive end.
3) Place the alternator next to the drive engine, as illustrated in Figure 3B.
4) Centre and secure the stator to the drive engine's flange, using suitable screws, as shown in Figure 3C.
5) Centre and secure, using appropriate screws, the coupling to the drive engine's flywheel working through the air
outlet, as indicated in Figure 3D.
Turn the rotor as shown in Figures 4A and B.
After completing the above-mentioned coupling procedures check that the rotor's axial positioning is correct,
and verify that the expansion allowance between the non-drive end bearing and the axial locking wall is 2 mm,
for SP10 and E1C10, 3 mm for E1C11 and E1C13.
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.
Winding resistences SP10 (Ohms @ 20°C)
Type
power (kVA)
principal
50Hz
60Hz
50Hz
60Hz
SP10S A
1,7
2
4,21
3,32
SP10S B
2,2
2,7
2,94
2,35
SP10S C
2,6
3,2
2,48
1,92
SP10S D
3
3,7
1,98
1,54
SP10S E
3,5
4,3
1,55
1,2
SP10M F
4,2
5
1,2
0,92
SP10M G
5
6
0,97
0,76
stator
rotor
excitation
battery charger
50Hz
60Hz
50Hz
60Hz
1 polo (uF 450V)
17,66
13,58
0,15
0,11
4,61
8,63
7,2
0,1
0,088
3,42
7,36
5,62
0,097
0,85
3,37
6,13
4,67
0,093
0,081
3,52
4,89
3,75
0,08
0,075
3,54
3,85
2,84
0,083
0,071
3,93
3,21
2,45
0,074
0,062
4,27
KVA
Type
50 Hz
60 Hz
50 Hz
E1C10S B
2.2
2.7
3.04
E1C10S D
3
3.7
1.97
E1C10S E
3.5
4.3
E1C10S F
4.2
5
1.15
E1C10S G
5
6
E1C10M H
6
7.25
0.66
E1C10M I
7
8.5
0.515
E1C10M L
8
9.75
0.45
E1C11MA
8
9.75
0.42
E1C11MB
10
12.5
0.286
E1C11MC
12
15
0.235
E1C13M D/2
15
18
0.18
E1C13M E/2
18
22
0.155
* With connections for the higher voltage.
Winding resistences E1C/4 (Ohm 20 °C)
Type
power (kVA)
50 Hz
60 Hz
E1C13S A/4
5.5
7
E1C13S B/4
7
8.5
E1C13S C/4
8
9.75
E1C13S D/4
9
11
E1C13M E/4
11.5
14
E1C13M F/4
12.5
15
* With connections for the higher voltage.
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
cap.
air required by the alternator is:
- SP10: 4 m
3
/min.
- E1C10: 4 m
3
/min.
10
- E1C11: 5 m
3
/min.
14
- E1C13: 10 m
3
/min.
16
16
VOLTAGE AND REVOLVING SPEED CALIBRATION
20
Voltage and revolving speed calibration should be carried out by qualified personnel only because of
25
electrocution hazard.
25
- 10 -
Winding resistences E1C/2 (Ohm 20 °C)
Stator
Principal*
Excitation
Battery charger
60 Hz
50 Hz
60 Hz
50 Hz
2.35
9.05
7.1
0.1
1.54
5.9
4.65
0.093
1.6
1.2
4.8
3.75
0.08
0.92
3.7
2.85
0.083
1
0.76
3.18
2.45
0.074
0.52
1.95
1.53
0.07
0.39
1.57
1.18
0.075
0.35
1.15
0.95
0.073
0.33
1.52
1.13
0.22
1.04
0.82
0.18
0.80
0.63
0.135
0.46
0.36
0.115
0.35
0.29
stator
principal* 1-4
excitation
50 Hz
60 Hz
50 Hz
60 Hz
0.73
0.52
2.44
1.61
0.57
0.39
1.90
1.35
0.41
0.28
1.44
0.95
0.35
0.26
1.12
0.74
0.23
0.18
0.76
0.54
0.20
0.16
0.62
0.52
Cap.
Rotor
(450 V.)
(1 pole)
µF
60 Hz
0.088
3.4
14
0.081
3.27
16
0.075
3.48
20
0.071
3.7
25
0.062
3.96
25
0.060
4.61
30
0.062
5.1
40
0.058
5.60
45
4.97
25+25
5.83
45
6.2
35+35
5.87
40+40
5.87
30+30+35
rotor
cap.
1 pole
(µF 450V)
0.83
25+30
0.94
30+25
1.04
35+40
1.13
40+45
1.35
35+40+40
1.41
40+40+40
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