Harmonic filter functions

The various functions that a harmonic filter performs are enumerated as follows:

  1. Reduces neutral currents
  2. Reduces transformer loading
  3. Protects electrical systems
  4. Reduces fire hazard
  5. Protects the neutral conductor
  6. Enhances system protection
  7. Minimizes impact on distribution transformers
  8. Reduces local neutral to ground voltage
  9. Lowers peak phase current/average phase current
  10. Increases system capacity
  11. Decreases system losses
  12. Improves power factor on non-linear loads
  13. Reduces total harmonic distortion
  14. Improves phase current balance
  15. Augments phase voltage balance
  16. Reduces three-phase neutral current

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