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Power Factors for Typical Industrial Loads
Typical Industrial Loads and Their Common Power Factors |
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Load |
Typical Power Factor |
| Incandescent Lamps |
1.0 |
| Fluorescent Lamps |
0.95 - 0.97 |
| Synchronous Motors |
1.0 - 0.80 leading |
| Squirrel Cage Motors |
|
| High Speed |
0.75 - 0.90 |
| Low Speed |
0.85 - 0.92 |
| Wound Rotor |
0.80 - 0.90 |
| Induction Motors |
|
| Fractional HP |
0.55 - 0.75 |
| 1 - 10 HP |
0.75 - 0.85 |
| Arc Furnace |
0.65 - 0.70 |
| Induction Furnaces |
0.90 - 1.0* |
| Power Converter (SCR Type) |
0.50 - 0.90 |
| *Capacitors usually included with the Induction Furnace |
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