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2018.01 / g
18
Electric Power Generation
Installation and maintenance
LSA 44.3
Low Voltage Alternators - 4 pole
5056 en -
• Voltage on the auxiliary windings
Type
Winding X1, X2
Winding Z1, Z2
50 Hz
55 ... 59
11 ... 16
60 Hz
66 ... 71
14 ... 19
• 4P dedicated single-phase - Winding M
SHUNT excitation (50 Hz)
Resistances at 20°C (Ω)
Type
L/N stator Rotor Exciter
field Armature
S2
0.012
2.354 11.647 0.422
S3
0.012
2.354 11.647 0.422
S4
0.0093
2.578 12.941 0.459
S5
0.0093
2.578 12.941 0.459
M8
0.0068
3.032 12.941 0.459
i exc excitation current (A) - 240 V - 60 Hz
“i exc”: excitation current of the exciter field.
Type
At no load
On load
S2
0.7
1.3
S3
0.7
1.5
S4
0.7
1.3
S5
0.7
1.5
M8
0.6
1.3
• 4P dedicated single-phase -
Winding M1 SHUNT excitation (60 Hz)
Resistances at 20°C (Ω)
Type
L/N stator Rotor Exciter
field Armature
S2
0.0084
2.354 11.647 0.422
S3
0.0084
2.354 11.647 0.422
S4
0.0059
2.578 12.941 0.459
S5
0.0059
2.578 12.941 0.459
M6
0.0053
2.805 12.941 0.459
L10
0.0042
3.291 12.941 0.459
i exc excitation current (A) - 240 V - 60 Hz
“i exc”: excitation current of the exciter field.
Type
At no load
On load
S2
0.8
1.7
S3
0.9
1.8
S4
1
1.9
S5
1
2
M6
0.6
1.7
L10
0.7
1.5
• Table of weights
(values given for information only)
Type
Total weight (kg)
Rotor (kg)
S2
301
120
S3
301
120
S4
338
136
S5
338
136
M6
374
150
M8
404
162
L10
439
178
After operational testing, it is essential
to replace all access panels or covers.
Don’t forget the screw [29] earth
continuity.