Question 1 of 10
What is the primary function of power factor correction devices?
Power factor correction aims to minimize the reactive power, which is the component of current that doesn't contribute to useful work.
Question 2 of 10
Which device uses an over-excited synchronous motor for power factor correction?
A synchronous condenser operates as a synchronous motor running at no load and over-excited to supply leading reactive power.
Question 3 of 10
What type of current do static capacitors supply to the circuit?
Static capacitors supply leading current to offset the lagging current drawn by inductive loads.
Question 4 of 10
Which of the following is NOT an advantage of static capacitors for power factor correction?
Static capacitors have a shorter lifespan compared to some other power factor correction methods.
Question 5 of 10
Phase advancers are primarily used to improve the power factor of which type of motor?
Phase advancers are specifically designed to improve the power factor of induction motors.
Question 6 of 10
What is a major disadvantage of Phase Advancers?
Phase advancers are generally not cost-effective for motors under a certain size.
Question 7 of 10
Which device automatically adjusts reactive power based on load requirements?
Switched capacitor banks are designed to adjust reactive power based on the load variations.
Question 8 of 10
Which device utilizes thyristor-controlled reactors and capacitors for reactive power compensation?
SVCs use thyristor-controlled reactors and capacitors for continuous reactive power compensation.
Question 9 of 10
What does a STATCOM use for reactive power compensation?
STATCOMs use a voltage source converter to provide reactive power compensation.
Question 10 of 10
Which type of filter combines active and passive filtering techniques?
Hybrid power filters combine active and passive filtering for comprehensive power factor improvement.
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