OPX300K2 05/12
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.
MOTOR STARTING
The generator is capable of enduring up to 300% of the rated
current for 10 seconds at power factor of 0.
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
60
Hz
120
1 Phase
50
Hz
100/200
110/220
115/230
120/240
50
Hz
110
SHORT CIRCUIT
PX-300K2 Series AC generators can provide over 300%
of the rated current for a short period of time, with an
excitation support system (optional).
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 PX-300K2 Series 1-phase 4-wire and 3-phase 12-wire AC
generators.
