Question #75696

A synchronous motor connected to infinite bus-bars has at constant full load, 100% excitation and unity power factor. On changing the excitation only, the armature current will have_____________?

Options:

A) no change of power factor

B) lagging power factor with over-excitation

C) leading power factor with under-excitation

D) leading power factor with over-excitation

Answer: A synchronous motor connected to infinite bus-bars has at constant full load, 100% excitation and unity power factor. On changing the excitation only, the armature current will have leading power factor with over-excitation.

Previous Next

Electrical Engineering Related Questions

Q1.

Which of the followings is/are active element?
Q2.

If P is the power of a star connected system then what will be power of an equivalent delta connected system?
Q3.

Magnetic flux has the unit of
Q4.

The voltage induced in an inductor is represented as,
Q5.

Instantaneous power in inductor is proportional to the
Q6.

The unit of resistivity is
Q7.

How many coulombs of charge flow through a circuit carrying a current of 10 A in 1 minute?
Q8.

The resistance of a conductor of diameter d and length l is R Ω. If the diameter of the conductor is halved and its length is doubled, the resistance will be
Q9.

The resistivity of the conductor depends on
Q10.

If 1 A current flows in a circuit, the number of electrons flowing through this circuit is

Test Your Knowledge

Want to practice more questions like this? Take a quiz in this category!

Take a Quiz

Question #75696

A synchronous motor connected to infinite bus-bars has at constant full load, 100% excitation and unity power factor. On changing the excitation only, the armature current will have_____________?

Options:

Electrical Engineering Related Questions

Category

Test Your Knowledge

Share This Question

AdBlock Detected

How to disable your ad blocker:

Popular Categories

More Categories

Explore More

Question #75696

A synchronous motor connected to infinite bus-bars has at constant full load, 100% excitation and unity power factor. On changing the excitation only, the armature current will have_____________?

Options:

Electrical Engineering Related Questions

Category

Test Your Knowledge

Share This Question

AdBlock Detected

How to disable your ad blocker: