Service manual

4. Service 9-2013
Expected output will be 73.2 amp - 11.7 amp = 61.5 amp
To verify generator set performance:
1. Follow de-rate guidelines above and determine % reduction in generator set output due to
temperature and elevation. See example calculation.
2. While the generator set is running, determine the output voltage at the customer
connection block TB2.
3. Use the table below to find the expected current value for the measured voltage and apply
the de-rate calculated in step 1.
4. Measure current at the customer connection wires at TB2.
5. Turn on household devices or increase the load setting of the load bank until the current is
equal to the de-rated current calculated in step 3. Approximate load bank setting required
to achieve the expected amperage output can be estimated by multiplying the expected
amperage output by the voltage measured in step 2.
TABLE 13. EXPECTED CURRENT VALUE FOR MEASURED VOLTAGE
Generator Voltage at Minimum Amps Minimum Amps Generator Voltage at Minimum Amps
TB2 Available Before Available Before TB2 Available Before
Derate LP Derate NG Derate NG
252 69.7 61.5 241.5 55.9
249.6 70.4 62.1 239.2 56.4
247.2 71 62.7 236.9 57
244.8 71.7 63.4 234.6 57.5
242.4 72.4 64 232.3 58.1
240 73.2 64.6 230 58.7
237.6 73.9 65.3 227.7 59.3
235.2 74.7 65.9 225.4 59.9
232.8 75.4 66.6 223.1 60.5
230.4 76.2 67.3 220.8 61.1
228 77 68 218.5 61.8
225.6 77.8 68.7 216.2 62.4
223.2 78.7 69.5 213.9 63.1
*220.8 79.5 70.2 *211.6 63.8
*218.4 80.4 71 *209.3 64.5
*216 81.3 71.8 *207 65.2
*These voltage settings are not allowed by the generator control.
38 A030A239 (Issue 10)