Power Factor Correction Quiz

What is the definition of power factor?

• The ratio of active power to apparent power

• The ratio of active power to reactive power

• The percentage of electricity wasted

• The total power delivered by the utility company

What does a power factor of 0.72 indicate?

• 72% of power is used for useful work

• 72% efficiency in the system

• 72% of power is wasted

• 72% of reactive power is consumed

What type of power does reactive power generate?

• Useful work

• Magnetic fields

• Electricity

• Heat

What is the typical uncorrected industrial power factor?

• 1.0

• 0.95

• 0.8

• 0.9

What happens if the power factor is not corrected?

• Increased efficiency

• Reduced current flow

• Increased capital expenditure

• Lower electricity bills

What is one disadvantage of a low power factor?

• Reduced load handling capability

• Increased voltage regulation

• Lower maximum demand charges

• Improved power quality

What component is used in an automatic power factor correction system?

• Resistors

• Inductive coils

• Capacitor banks

• Transformers

What is the purpose of a reactive power control relay?

• To increase current flow

• To manage reactive power

• To control voltage levels

• To measure active power

What is one benefit of using a power factor correction unit for end users?

• Increased voltage flickering

• Reduction in electric bill

• Higher system losses

• Increased reactive power demand

How often should the cleanliness of the power factor correction equipment be checked?

• Once every six months

• Once a month

• Every week

• Once a year