The Benefits of Harmonic Filters are many, including the following:
Preventing premature equipment failure
Preventing fires due to inductive heating and overload
Preventing of blinking of incandescent lights due to supply transformer saturation
Preventing capacitor failure due to harmonic resonance
Preventing circuit breakers tripping, fuses blowing due to inductive heating and overload
Preventing computer malfunction or lock up due to voltage distortion
Preventing conductor failure due to inductive heating
Preventing electronic equipment from shutting down unexpectedly due to voltage distortion
Preventing flickering of fluorescent lights due to supply transformer saturation
Preventing motor failures (overheating) due to voltage drops
Preventing inflated kWh costs due to all of the above
Preventing neutral conductor and terminal failures due to additive triple currents
Preventing electromagnetic load failures due to inductive heating
Preventing overheating of metal enclosures due to inductive heating
Preventing power interference on voice communication due to harmonic noise
Preventing transformer failures due to inductive heating
Reducing the risk of electrical fires is likely eventually to become actionable in terms of reduced P&C (or Homeowners’) Insurance.
Oh and by the way, it pays for itself with electrical savings usually in under 1-2 years, sometimes less.