# Recent questions tagged angle

2 answers 46 views

How to find total impedance Z, current I and Impedance angle ?

1 answer 39 views

Phase margin is the amount of angle to make the system  (1) Oscillatory (2) Stable (3) Unstable (4) Exponential

1 answer 25 views

When the firing angle a of a single-phase, fully controlled rectifier feeding constant direct current into a load is 30°, the displacement power factor of the rectifier is

1 answer 16 views

The power factor angle and torque angle of a salient pole synchronous generator drawing a current of 1.0 pu from a lagging load are 45o and 15o, respectively. The direct axis and quadrature axis currents, respectively, are (A) 0.5 pu, 0.866 pu (B) 0.866 pu, 0.5 pu (C) 0.707 pu, 0.707 pu (D) 0.5 pu, 0.5 pu

1 answer 24 views

Torque angle for the synchronous machine is the angle between (A) stator magnetic field and rotor magnetic field (B) stator magnetic field and net magnetic field in the air gap (C) rotor magnetic field and net magnetic field in the air gap (D) excitation voltage and impedance voltage drop

1 answer 54 views

The product of apparent power and cosine of the phase angle between circuit voltage and current is?

1 answer 21 views

What will be the phase angle between two alternating waves of equal frequency, when one wave attains maximum value the other is at zero value ?

1 answer 20 views

The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of______degrees.

1 answer 27 views

Two waves of the same frequency have opposite phase when the phase angle between them is?

1 answer 95 views

Tangent of angle of friction is equal to?

1 answer 21 views

Angle of friction is the?

1 answer 27 views
1 answer 23 views
1 answer 79 views

What is meant by firing angle of thyristor?

1 answer 38 views

What is the maximum value of torque angle in synchronous motor?

1 answer 19 views

The synchronous motor will develop maximum power when the load angle is?

0 answers 20 views

What is power factor angle?

2 answers 26 views

what is firing angle?

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