The facts about KVAR.

KVAR Facts

From: MOTOR CHALLENGE: Reducing Power Factor Cost DOE/GO-10096-286

Definition of Terms

  • KW is real (working) power.
  • KVA is total (apparent) power.
  • KVAR is reactive (non-working) power.
  • Power factor is real power/ apparent power.
  • Amps is the rate of electron flow.
  • Resistive load creates heat by consuming KW.
  • Inductive load uses alternating current to create a magnetic field which does the work.
Electricity Travels from line source to inductive load through the electrical meter. Electrical meters record all productive power consumption.

Problem: High electric bills! Electrical meters also record voltage spikes and other line noise as additional power consumption.

Solution: KVAR units clean up line interference allowing unused power to return with lower resistance to the grid.

KVAR units

  • Enhance power factor and suppress amperage surges.
  • Filter and condition line noise, reducing line resistance to power returning to the grid.
  • Reduce the amp draw from the power source.
All these factors lower Kilowatt usage.

Problem: Excessive motor burnout! Power from the utility can have high KVAR. Greater KVAR equals to higher motor frame temperature. This high temperature breaks down winding insulation and shortens motor life.

Solution: KVAR units reduce KVAR, lowering motor frame temperature, thus extending motor life. KVAR units’ filtration components also reduce motor stress caused by voltage transients.



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