electrical
electric motor loads
It is characteristic of common electric motors in normal operation to draw up to six times their running current while start- ing. This table may be used to estimate the watts required to start “Code G” electric motors; however, if an electric motor fails to start or reach running speed, turn off the appliance or tool immediately to avoid equipment damage. Always check the requirements of the tool or appliance being used compared to the rated output of the generator.
Motor Size (H.P.) | Running Watts | Watts Required to Start Motor |
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Repulsion Induction | Capacitor |
| Split Phase | ||
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1/8 | 275 | 600 | 850 |
| 1200 |
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1/6 | 275 | 600 | 850 |
| 2050 |
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1/4 | 400 | 850 | 1050 |
| 2400 |
1/3 | 450 | 975 | 1350 |
| 2700 |
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1/2 | 600 | 1300 | 1800 |
| 3600 |
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3/4 | 850 | 1900 | 2600 |
| — |
1 | 1100 | 2500 | 3300 |
| — |
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CAUTION
Operating voltage and frequency requirement of all electronic equipment should be checked prior to plugging them into this generator. Damage may result if the equipment is not designed to operate within a +/- 10% voltage variation, and +/- 3 hz frequency variation from the generator name plate ratings. To avoid damage, always have an additional load plugged into the generator if solid state equipment (such as a television set) is used. A power line conditioner is recommended for some solid state applications.
generator Capacity
Make sure the generator can supply enough continuous (run- ning) and surge (starting) watts for the items you will power at the same time. Follow these simple steps.
1. Select the items you will power at the same time.
2. Totalthe continuous (running) watts of these items. This is the amount of power the generator must produce to keep the items running. See the wattage reference chart at right.
3. Estimatehow many surge (starting) watts you will need. Surge wattage is the short burst of power needed to start electric
Example: |
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Tool or Appliance |
| Continuous |
| Surge | ||
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| (Running) Watts | (Starting) Watts | ||||
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Window AC, |
| 1200 |
| 1800 |
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10,000 BTU |
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Refrigerator |
| 700 |
| 2200 |
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1/3 HP Well Pump |
| 1000 |
| 2000 |
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27 in. Television |
| 500 |
| 0 |
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Light (75 Watts) |
| 75 |
| 0 |
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| 3475 Total | 2200 Highest | |||
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| Running Watts | Surge Watts | |||
Total Continuous (Running) Watts | 3475 |
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Plus Highest Additional Surge Watts | + 2200 |
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Equals Total Generator Output Required | 5675 | |||||
Page 8 — English
