A device has low Power Factor when it draws more current than it uses.


What is reactive power and how is it measured?

Reactive Power (kVArh) is the difference between working power (active power measured in kW) and total power consumed (apparent power measured in kVA). Some electrical equipment used in industrial and commercial buildings requires an amount of ‘reactive power’ in addition to ‘active power’ in order to work effectively.

Reactive power therefore generates the magnetic fields which are essential for inductive electrical equipment to operate – especially transformers and motors.
This load is measured via the reactive register on your half hourly meter.


What is Power Factor and how is it caused?

Power Factor is the relationship between ‘active’ and ‘reactive’ power and indicates how effectively electrical power is being used: Bad power factor - is low (less than 0.95) so more reactive power is required. Good power factor - is high (greater than 0.95) so power is used more effectively. ‘Perfect’ power factor - (1.0) this is known as unity and does not use any reactive power. Most electrical equipment, such as motors, compressors, welding sets and even fluorescent lighting, create an inductive load on the supply. An inductive load requires a magnetic field to operate, which then causes the electrical current to “lag” the voltage - i.e. the current is not in phase with the voltage.


ELCorrect Ecological Electric - Skutahraun 2 - 220 Hafnarfjordur - Iceland - ee@rafehf.is


  • s-facebook

We specialize in; Electric Efficiency , Power Factor,  Power Quality, Electrical Engineering, Power Quality Analysis, Real Power, Reactive Power, Apparent Power, Current, Voltage, AC/DC, Electric Power System, Ecological Electric, Capacitor, Capacitors, Linear Load, Distortion, Distortions, Harmonic, Resonance, Inductor, Inductors, Power Consuming, Correction, Power Factor Corrections, Fuel Savings, Saving, Energy Savings, Electric Savings, Technology, Technical, Power Consuming, Low Power Factor, Energy loss, Penalty, Penalties, Advanced Electric Power Quality Correction Technology, Energy Efficiency, Marine Electric, Marine Fuel Savings, Power Factor Correction electrical engineering power factor  power quality electric efficiency power factor correction electrical and electronic engineering electrical and electronics engineering unity power factor power factor calculation what is power factor power factor meter power factor correction capacitors motor power factor electrical engineering wiki power factor formula electrical engineer power quality  meter power factor calculator power factor improvement power factor correction equipment power factor correction calculation power factor controller electrical engineering portal power quality solutions power factor correction capacitor power quality monitor power factor capacitor what is electrical engineering what is power factor correction power factor explained power factor correction circuit power factor corrector electrical engineering projects power quality measurement electrical power quality what do electrical engineers do power factor capacitors online electrical engineering degree power quality recorder bcit electrical engineering power quality improvement power factor correction unit power quality issues what is a power factor power and power factor power quality problems automatic power factor correction electrical engineering companies electricity engineering power quality analyzer power factor correction formula about electrical  engineering power quality analyser electrical engineering springer what is the power factor electrical engineering technology power quality management power factor equation electric power quality power correction factor power factor correction methods electrical power factor electrical  engineering interview questions power quality monitoring capacitor power factor power quality  meters power factor measurement power factor correction device electrical engineering software how to improve power factor power quality analysis electrical and engineering seminar topics for  electrical engineering power factor improvement methods