Related Questions

Voltage and phase angle regulators with fast electronic control exhibit transient stability improvement in the connected system.
The minimization of post-disturbance overloads is possible with voltage phase angle regulators employing fast electronic control.
Which of the following is/are the advantages of using a control chart for inspection? (i) A control chart indicates whether the process is in control or out of control. (ii) A control chart determines process variability. (iii) A control chart ensures product quality. (iv) Scrap or percentage reduction can be reduced by taking the necessary actions in time against the warnings indicated by control charts. (v) Control charts build up the reputation of the organization through customer’s satisfaction. (vi) The control chart can detect the unusual variations taking place in a process.
If the damping factor is less than the damping factor at critical damping, the time response of the system is ___________
A 3-phase bridge converter is given a three-phase supply in the phase sequence R-Y-B. Let the neutral to R phase voltage be Vm sinωt. The first SCR (connected to R phase) is fired at an angle of 15°. What is the maximum value at the output terminals at this instant?
Find critical damping coefficient if damping ratio is 0.5 and damping coefficient is 1.1.
Consider the following statements.
A Simple Pendulum is set into oscillation. Then,
1. the acceleration is zero when the bob passes through the mean position.
2. in each cycle the bob attains a given velocity twice.
3. both acceleration and velocity of the bob are zero when it reaches its extreme position during the oscillation.
4. the amplitude of oscillation of the simple pendulum decreases with time.
Which of these statements are correct?
What is the formula of the angle between secondary induced voltage and secondary current? b) phase angle = tan-1 * c) phase angle = tan-1 * d) phase angle = tan-1 *
Why do accelerometers that include fluid damping exhibit reduced damping?
At a 33kV 50 Hz to a bus a load of 35 MW is connected. To improve the power factor to unity a synchronous phase modifier is connected taking 5 MW. If the SPM is represented as delta connected impedance, where in each phase we have capacitor connected parallel to resistance forming RC parallel network, then the value of this resistance is ___________