S1L2-N1 - Technical Data Sheet
S1L2-N1 - Technical Data Sheet
S1L2-N1 - Technical Data Sheet
Quality Assurance
Alternators are manufactured using production procedures having a quality assurance level to BS EN ISO 9001.
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Electrical Data
Insulation System Class H
Stator Winding Double Layer Concentric
Winding Pitch Two Thirds
Winding Leads 12
Winding Number 311 / 711
Number of Poles 4
IP Rating IP23
RFI Suppression EN 61000-6-2 & EN 61000-6-4, refer to factory for others
Waveform Distortion NO LOAD < 2% NON-DISTORTING BALANCED LINEAR LOAD < 5.0%
Short Circuit Ratio 1/Xd
Steady State X/R Ratio 8.0
50 Hz 60 Hz
Telephone Interference THF<2% TIF<50
Voltage Series Star 380/220 400/231 415/240 440/254 416/240 440/254 460/266 480/277
Voltage Parallel Star 190/110 200/115 208/120 220/127 208/120 220/127 230/133 240/138
Voltage Series Delta 220/110 230/115 240/120 254/127 240/120 254/127 266/133 277/138
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Mechanical data
Cooling Air 0.176 m³/sec (50Hz) 0.211 m³/sec (60Hz)
All alternator rotors are dynamically balanced to better than
Shaft and Keys
BS6861: Part 1 Grade 2.5 for minimum vibration in operation.
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50Hz
60Hz
416V 440V 480V
35
30
25
PER CENT TRANSIENT VOLTAGE DIP
20
15
10
0
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95
LOCKED ROTOR kVA
Transient Voltage Dip Scaling Factor Transient Voltage Rise Scaling Factor
PF Factor
< 0.5 1.00 For voltage rise multiply voltage dip by 1.25
0.5 0.97
0.6 0.93
0.7 0.90
0.8 0.85
0.9 0.83
1.0 0.80
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Three-phase Short Circuit Decrement Curve
50Hz
60Hz
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480V/60Hz
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Class - Temp Rise Standby - 163/27°C Standby - 150/40°C Cont. H - 125/40°C Cont. F - 105/40°C
Series Star (V) 380 400 415 440 380 400 415 440 380 400 415 440 380 400 415 440
50 Parallel Star (V) 190 200 208 220 190 200 208 220 190 200 208 220 190 200 208 220
Hz
Series Delta (V) 220 230 240 254 220 230 240 254 220 230 240 254 220 230 240 254
kVA 45.3 49.5 49.5 N/A 44.0 48.0 48.0 N/A 41.2 45.0 45.0 N/A 37.5 41.0 41.0 N/A
kW 36.2 39.6 39.6 N/A 35.2 38.4 38.4 N/A 33.0 36.0 36.0 N/A 30.0 32.8 32.8 N/A
Efficiency (%) 87.9 87.3 87.5 N/A 88.2 87.8 87.9 N/A 88.9 88.6 88.7 N/A 89.7 89.4 89.5 N/A
kW Input 41.3 45.3 45.2 N/A 39.9 43.7 43.7 N/A 37.1 40.6 40.6 N/A 33.5 36.7 36.7 N/A
Series Star (V) 416 440 460 480 416 440 460 480 416 440 460 480 416 440 460 480
60 Parallel Star (V) 208 220 230 240 208 220 230 240 208 220 230 240 208 220 230 240
Hz
Delta (V) 240 254 266 277 240 254 266 277 240 254 266 277 240 254 266 277
kVA 52.3 55.4 N/A 59.4 50.8 53.9 N/A 57.6 47.2 50.4 N/A 54.0 43.2 45.8 N/A 49.1
kW 41.8 44.3 N/A 47.5 40.6 43.1 N/A 46.1 37.8 40.3 N/A 43.2 34.6 36.6 N/A 39.3
Efficiency (%) 89.6 89.5 N/A 89.3 89.9 89.8 N/A 89.7 90.5 90.4 N/A 90.3 91.1 91.0 N/A 90.9
kW Input 46.7 49.5 N/A 53.2 45.2 48.0 N/A 51.4 41.7 44.6 N/A 47.8 37.9 40.3 N/A 43.2
De-Rates
All values tabulated above are subject to the following reductions:
- 3% for every 500 meters by which the operating altitude exceeds 1000 meters above mean sea level
- 3% for every 5°C by which the operational ambient temperature exceeds 40°C
- For any other operating conditions impacting the cooling circuit please refer to applications
Note: Requirement for operating in an ambient exceeding 60°C and altitude exceeding 4000 meters must be
referred to applications.
Note: Continuous development of our products means that the information contained in our data sheets can change
without notice, and specifications should always be confirmed with Cummins Generator Technologies prior to
purchase.
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