How is the power factor at which paralleled...

Question 1 / 270705eccefa4bacbc34ba4d481a4

Question 1 of 270705eccefa4bacbc34ba4d481a4

How is the power factor at which paralleled AC generators operate automatically equalized?

Question 1 of 27070

How is the power factor at which paralleled AC generators operate automatically equalized?

🔍 Key Concepts

• AC generator voltage, frequency, and excitation when operating in parallel • difference between real power (kW) sharing and reactive power (kVAR / power factor) sharing • how field excitation current affects power factor in synchronous generators

💭 Think About

• When two AC generators are running in parallel at the same speed and voltage, what specific control or parameter mainly affects their reactive power (kVAR) and power factor? • Which part of the generator system controls the strength of the magnetic field and therefore the reactive component of the output current? • If you wanted to correct a lagging power factor on a synchronous generator, what adjustment would you typically make: speed, load, or excitation?

✅ Before You Answer

• Distinguish clearly between what changes real power (kW) (usually mechanical input / prime mover) and what changes reactive power (kVAR) / power factor (usually excitation). • Verify which option directly influences the generator’s magnetic field and thus its reactive current contribution. • Confirm that automatic equalization is usually done by automatic voltage regulators (AVRs) acting on a specific generator parameter, not on the external load itself.

Question 1 of 27070

How is the power factor at which paralleled AC generators operate automatically equalized?

characteristics of the connected load

changes in prime mover speed

changes in field excitation current

equalization of power factors cannot be achieved automatically

Question 1 / 270705eccefa4bacbc34ba4d481a4

Question 1 of 270705eccefa4bacbc34ba4d481a4

How is the power factor at which paralleled AC generators operate automatically equalized?

Back

Question 1 of 27070

How is the power factor at which paralleled AC generators operate automatically equalized?