OLXE 03/10
8
Characteristics
VOLTAGE REGULATION
Generator terminal voltage regulation is within
±
1% of the
rated voltage in lagging power factor. 1.0 to 0.8, when the
load is varied gradually from no load to full load. This value
includes the temperature drift and rotating variation.
RESPONSE
After supplying a load instantaneously, the generator voltage
should be restored to the steady condition in accordance with
BS4999 Part 40, grade VR2.11 to VR2.23.
VOLTAGE STABILITY
In constant load and engine speed, voltage stability remains
0.25% of the rated voltage.
Winding Connection Frequency Voltages
3 Phase Series Star
60 Hz 480/277 460/266 440/254 416/240
(High Wye)
50 Hz 415/240 400/231 380/219
3 Phase Parallel Star
60 Hz 240/139 230/133 220/127 208/120
(Low Wye)
50 Hz 208/120 200/115 190/110
1 Phase
60 Hz 120/240
50 Hz 100/200 110/220 115/230 120/240
SHORT CIRCUIT
LX-E Series AC generators can provide over 300% of the
rated current for a short period of time, with an excitation
support system.
PHASE ROTATION
Phase sequence is T1-T2-T3 (U-V-W, A-B-C) with a
counterclockwise rotation of generator viewed from the
anti-coupling side.
Figure 5: Standard Voltage Table
Standard Voltage Tables and Connection Diagrams
Standard voltage selection table and connection diagram for LX-E Series 3-phase 12-wire AC
generators. See AC wiring schematic page 19.
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