For the closed-loop control system described by the block diagram shown in figure below. = 0.12 ess for unit ramp input. Then Suppose that = 0.6 A =, B = and 1 C(s) R( s )-*, A .2 Bs
Q: What is the meaning of the word, synchronous machine falling out of step?
A: as the name suggests the synchronous machine generally rotates at a synchronous speed.
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Q: Elimination of armature reaction requires a series field winding O True False
A: The elimination of armature reaction requires compensating winding.
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Q: Q3\ In a long-shunt compund generator, the terminal voltage is 230 V, when it delivers 150 A. The…
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Q: discuss the application of nyquist criterion to determine stability of a closed loop control system
A: Nyquist criterion: Nyquist criterion is a tool widely used to determine the stability of a system.
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A: In the question, Find the steady state error of the given unit step response?
Q: Q3) In a long-shunt compund generator, the terminal voltage is 230 V, when it delivers 150 A. The…
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Q: Q3 In a long-shunt compund generator, the terminal voltage is 230 V, when it delivers 150 A. The…
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- help me in these questions pls write the questions with the and by (Computer) 1-Which of the following statements INCORRECTLY explain the label in the figure about LVDT working principles? a. Secondary coils are connected in series in such a way that their output is opposing each other. b. Constant DC voltage input to primary coil. c. Displacement moves ferrous rod from central position. d. The difference of the output voltage between the two secondary voltage.==========2- Explain the working principle of the measurement system in the figure below.i. Force input that is supplied to the sensor is processed to give the response in the form of raw output signal.ii. Signal conditioner manipulated the weak signal to give a conditioned input.iii. Analog or digital indicator display the unit that gives output reading of quantity being measured.iv. Measured value is compared with the input value for further action. a. ii, iii and iv only. b. i, ii and iv only. c. i, ii and…Explain the DC Machine losses in briefly.Q6/ Answer the following questions: 1. Define the DC motor drive 2. Classify the DC motor drive 3. How can be controlling on the speed of DC motor 4. Numerate the types of AC-DC converter 5. Draw the circuit of single -phase converter on separately excited DC motor 6. Write the equations the following: I. Speed(W)= II. Torque developed(Td): III. Vm=..
- DA de machine is controlled by the step-down de-de converter shown below. The armature inductance La =0.2 mH and the armature resistance can be neglected. The armature current is 5A. The Buck converter is operating at the switching frequency is 30 kHz and the duty ratio is 0.8. + > ~ Answer the following questions: 1) Calculate the input voltage (Va) if the output voltage (ea = 200 V). 2) Find the ripple in the armature current (la). 3) Calculate the maximum and minimum values of the armature current (la). 4) Sketch the armature current (ia (t)) and the supply current (ig(t)).Two shunt generations each having an armature resistance of 0.05 ohm and field resistance 40 ohms respectively are connected in parallel. The e.m.f include in one machine is 250 V and that induced in the other machine is 260 V. they supply together a load current of 2000 A. Determine:(i) Terminal voltage; and(ii) Output of each machine.1) P.f of inductive load is corrected by connecting . . across it. .... ...... 2) Open circuit test measures . losses. 3) The output variables of a motor are and ........ ... .... 4) For a motor output power is given by ...... 5) Flux control, voltage control, and armature control are three methods for ....... of dc motor. 6) A transformer takes 100V at primary and gives 50V at secondary, its turn ratio equals 7) The given set of equations represents . . Ea – laRa = Vr , la = IL , %3D Rf 8) The given set of equations represents. la = !, + IL, VT Rf Ea – laRa = Vr , 9) The given set of equations represents . Ea – laRa – IseRse = Vr, la = Ise = l, %3D | 10). .. has more initial torque than shunt dc motor.
- Problem') A single-phase full-wave AC/AC voltage controller has input rms voltage Vs - 220 V,50 Hz, load R 100 2, and the firing angle a= 60° for the thyristors T1 and T2. Determine the output rms voltage VO and current IO, and the DPF.5. A single phase full wave ac voltage controller working on ON-OFF control technique has supply voltage of 230V r.m.s, at 50Hz, and a load R = 5002. The controller is ON for 30 cycles and off for 40 cycles. Calculate (a) ON & OFF time intervals. (b) the output R.M.S. voltage. (c) the power factor of the controller.Q2: Correct the wrong statement if any: 1-The series filed of a series dc generator is excited by armature current. 2- The developed power in DC generator armature is function to load current. 3-The commercial efficiency of DC generators is relationship between output mechanical power and developed power in armature winding. 4- If the source frequency subjected to primary windings increased, the iron losses also decreased. 5-In transformers short circuit test primary voltage will be greater than secondary voltage.
- discuss the application of nyquist criterion to determine stability of a closed loop control systemA de machine is controlled by the step-down de-de converter shown below. The armature inductance La =0.2 mH and the armature resistance can be neglected. The armature current is 5A. The Buck converter is operating at the switching frequency is 30 kHz and the duty ratio is 0.8. L₁ + Answer the following questions: 1) Calculate the input voltage (Va) if the output voltage (ea = 200 V). 2) Find the ripple in the armature current (a). 3) Calculate the maximum and minimum values of the armature current (la). 4) Sketch the armature current (ia (t)) and the supply current (id (t)).[4] The half wave ac controller has rms output voltage equal to input rms Vs at.......... (5] In single phase bidirectional ac controller, the RMS output voltage can be varied between zero to.............. of input voltage