Electrical plants Draw the connection diagram of the Impulse relay and write the working principle and usage areas.
Q: 15) 63 (a) Determine the Fourier transform of the signal x(t) = exp(−t) sin(20лt) u(t), where u(t)…
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- can someone help me out with this question 5 and pls explain clearly, tqhelp 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…A step up chopper has an input of 200 volts and output of 250 volts. The blocking period is each cycle is 0.6x10-3 seconds. Find the period of conduction in each cycle and frequency of operation?
- Q- Select the correct answer: a- The high concentration of holes and electrons in the central junction of a thyristor decreases by the process of ................ during off transient period with a time tar. 1- Forced commutation, 2- Phase commutation, 3- Load commutation, 4- Reverse bias commutation, 5- None of previous. Power Electronics b- The non-trigger voltage of a thyristor is.............. 1- VBO, 2- VBn, 3- VGn, 4- VGD, 5- None of previous. is the limiting positive anode voltage above which thyristor may be damage. 1- PRV, 2- PFV, 3- PAV, 4- PAK, 5- None of previous. C- d- The ripple frequency in the output voltage of single-phase half-controlled bridge AC/DC converter is when a > 60°. 1- 3f, 2-6f, 3- 2f, 4- f, 5- None of previous. ********* e- The integrator in the firing circuit of 1-phase bridge AC/DC converter is necessary to have firing angle range. 1-0-90°, 2-0-120°, 3-0-180°, 4-0-360°, 5- None of previous. f The harmonic contents in an inverter can be reduced through…What are the advantages and disadvantages of using Flyback and Push-Pull Converters in electrical power applications?9-In a the shunt field winding is connected in parallel with the armature winding only. Ish Series . Field EJR Shunt Rsh Rse Field 10-The consist of and 11- E = (V – IaRa ) then N = LOAD
- 1. Single phase full converter is used to control the speed of separately excited DC motors. AC supply voltage is 208 V. Motor armature and field resistance are 0.5 2 and 345 2 respectively. The field current is also controlled by a full converter and the field current is set as the maximum possible value. Motor voltage constant is 0.7 V/A-rad/sec. If firing angle is 45° and armature current is 55 A, determine the angular speed of the motor. Assume armature and field current are ripple free.The preferred method for applying the field excitation voltage uses a field relay which operates on the principle of A. speed application. B. time application.C. angle application. D. thermal application.Choose the converter which is used for converting Fixed bi-directional voltage to Variable alternating voltage? O a. Bidirectional voltage converter O b. DC voltage controllers O c. Bidirectional current converter O d. AC voltage controllers
- If given that the switching device of the DC Power Regulator System is a thyristor, suggest a suitable commutation circuit for the system in order to gain controllability of commutating the thyristor. Compose and summarize the operation of the said commutation circuit?Please answer only handwritten accepted...I will like that solution.. Please clear handwriting.. Please.. .A 3-phase 6-pulse converter is operated from a three-phase delta- connected 230 V, 50 Hz supply to supply a separately excited DC motor. The motor is rated at 220 V, 600 rpm, 500 A and it has an armature resistance of 0.02 Q. (i) Draw the circuit diagram of the system, and state what electronic component is used for the converter. Explain how this component works. (ii) Calculate the delay angle a. (iii) Calculate the delivered torque at rated conditions. (iv) If the mechanical loss torque is 150 Nm, and the power lost in the field winding is 3500 W. Calculate the full load efficiency of the motor.
