The products > Reactive energy compensation > General information > Power factor of main receivers

  

The receivers which consume the most reactive energy are:

  • low-load motors

  • welding machines

  • arc and induction furnaces

  • power rectifiers

 

RECEIVER

COS φ

TG φ

Ordinary  0 % 0.17 5.80
asynchronous  25 % 0.55 1.52
motors loaded at 50 % 0.73 0.94
75 % 0.80 0.75
100 % 0.85 0.62
Incandescent lamps approx. 1 approx. 0
Fluorescent lamps approx. 0.5 approx. 1.73
Discharge lamps 0.4 to 0.6 approx. 2.29 to 1.33
Resistance furnaces approx. 1 approx. 0
Compensated induction furnaces approx. 0.85 approx. 0.62
Dielectric heating furnaces approx. 0.85 approx. 0.62
Resistance welding machines 0.8 to 0.9 0.75 to 0.48
Single-phase static arc welding stations approx. 0.5 approx. 1.73
Rotating arc welding units 0.7 to 0.9 1.02 to 0.48
Arc welding transformers-rectifiers 0.7 to 0.8 1.02 to 0.75
Arc furnaces 0.8 0.75
Thyristor power rectifiers 0.4 to 0.8 2.25 to 0.75
 

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