3.A 220V series connected DC motor has an armature coil resistance of 0.5ohms and a stator winding resistance of 1.5 ohms. The motor draws 20A at 1200 rpm under load.The rotational loss is 150W.Find output power and efficiency.
Q: Simplify the circuit and solve for the All components are given or expressed in per-unit valves.…
A:
Q: If we know M= S cos(ωt + φ) and N= -Sω sin(ωt + φ), show that when t is zero, we will get S = √( M^2…
A: here we have to prove the given identity.
Q: EXAMPLE 8.14 For the astable multivibrator using the op-amp shown in Fig. 8.67, R = 10 km2, C = 0.01…
A:
Q: A 5,000-kVA, 3-phase transformer, 13.2/33-kV, A/Y, has a copper loss of 11 kW. The impedance drop at…
A: 3 phase transformer,Transformer rating = 5000 KVA Voltage rating of the transformer = 13.2 / 33 KV…
Q: EXAMPLE 8.14 For the astable multivibrator using the op-amp shown in Fig. 8.67, R = 10 k2, C = 0.01…
A: Given :Find :=> Here Find time period of the output square wave with range of R(2).
Q: 4. A generator with simplex-lap winding has the following specifications: P = 4 poles turn = 1 coil…
A: We are authorized to answer three subparts at a time since you have not mentioned which part you are…
Q: 1. Implement the given Boolean function in (a) NOR and (b) NAND gates only. Use two-input gates…
A: The given Boolean function is,
Q: Use phasor techniques to solve for the voltage v(t).
A:
Q: Calculate the maximum efficiency of the given amplifier circuit. |vt|-2 V, K=0.2 A/V² |gm|=20 mS,…
A:
Q: Determine the voltage across the capacitor vc(t) for t20. Given that V₁ = 15V, R₁ = 0.5kQ2, R₂ =…
A: It is given that:
Q: critically explain difference between short and long run energy demand.
A: Short and long-run energy demand refers to different time horizons in which energy consumption…
Q: ww 3122 1Ω j1 Ω X/0° V 3122 Ω jin 21 ZL Question) Find Zl for the maximum power transfer and…
A: Step-1->
Q: Two loads in parallel draw a total of 3 kW at a 0.9 lagging power factor from a 115-V rms 60-Hz…
A: Supply Voltage V = 115 V Supply Frequency f = 60 Hz Total Load PT = 3000 W PF cos ϕ = 0.9 lagging
Q: A curve between I and w in a series LCR circuit connected to an emf Eo sin wt has a peak (1 =…
A: For a series LCR circuit the curve between and has a peak at and the peak current is . This is…
Q: (SE U23 Uz=U₁ i U₁2 I 1 i U3 i C R (a) draw block diagram and show all step
A: Given:In this question, the given details are,Here, the given figure is,To draw the block diagram.
Q: There are 5 gates in a metrobus, 1 of which is to get on and 4 to get off. The number of passengers…
A: There are 5 gates in a metrobus, 1 of which is to get on and 4 to get off. The number of passengers…
Q: The variable resistor Ro in the circuit shown in Figure is adjusted until maximum average power is…
A:
Q: Q.3 A three-phase, four-pole, Y-connected, 480 V induction motor is driving a 400 Nm constant-torque…
A:
Q: A plane wave is normally incident from medium 1 ( 8₁. μ₁, ₁) to medium 2 (&2. 2. 2). Write down the…
A: Given Data:Medium-1 (Air)Medium-2 (Glass)Power of the Laser To determine:Transmitted power to…
Q: 2) A current of 250mA flows through a perfect inductor, when it is connected to a 5V, 1kHz supply.…
A: It is given that:
Q: A power company supplies power to a small town that is 10 km away from the nearest substation. The…
A: The above question is based on the power system transmission network.To transfer impedance from one…
Q: Zs C Zs Van n a Z₁ + V bn Z b C ZL A Z₁ ZL N ZL B
A: Given Circuit:Source Impedance Line Impedance Load Impedance To determine:The amplitude of line…
Q: Soru) Yukandaki devrede maksimum güç aktarımı içim olması gereken ZI değerini ve maximum gücü bulun.…
A: For the given circuit the value of impedance needs to be calculated and the value of maximum power…
Q: In Fig. 108, three capacitors C1=2 uF, C2=4 µF and C3=6 µF, initially connected in parallel are…
A:
Q: Consider a wind machine designed to deliver its rated power at the average velocity for a given wind…
A: The Weibull distribution is commonly used to model wind speed data. The probability density function…
Q: Problem 3: For the MOSFET transistor shown in the circuit below, the parameters are as follows, V₁ =…
A:
Q: 892 +y 47 392 Vs+ O 3 A O If V, 60 V, the current i in the above circuit is equal to 2 A 1 A www 4 A…
A: Vs=60 voltsAsked to find current i?
Q: 1. For the circuit in the figure below, obtain the transfer function type of filter the circuit…
A:
Q: Find the charge q(t) on the capacitor and the current i(t) in the given LRC-series circuit. 5 - h, R…
A: The value of the inductor, The resistor, The cpacitor,The voltage, The initial
Q: Determine the magnitude of the rms input current Is in the network of Figure in A. Vs 0.09 0.25 N 24…
A:
Q: Design the AGF digital butter worth below Information give and the with function. Possbad…
A: IIR Filter Design IntroductionH(Ω) cannot have an infinitely sharp cutoff from passband to stopband,…
Q: a coaxial cylindrical cable is to be designed to operate at 600kv with an average electric field of…
A: To calculate the dimensions of the coaxial cable and the field efficiency factor, we need to…
Q: The closed-loop speed control of a direct current motor is shown in the block diagram below. Step…
A: The forward path transfer function of a unity negative feedback sysetm isWe need to design a PI…
Q: In what ways can you safeguard your machine against power outages and other calamities?
A:
Q: Open Circuit Breaker B52. Using per unit and symmetrical component analysis, calculate the power…
A:
Q: 3. A drawing hall 30 m by 15 m with a ceiling height of 5 m is to be provided with general…
A: Given,Area of the hall, A=30m×15mCeiling heigh…
Q: 2) A current of 250mA flows through a perfect inductor, when it is connected to a 5V, 1kHz supply.…
A: The current, The supply voltage, The supply frequency,
Q: A closed system consisting of 10 lb of air undergoes a polytropic process from p₁ = 80 lbf/in². v₁…
A:
Q: A connection between two hosts may support the transmission of several packets. Detailed…
A: Aim:To describe instructions about a single packet delivery between two hosts, assuming one delay is…
Q: 2) The following 'plot' shows the carrier densities in a PN junction at room temperature. N side of…
A: Step-1->Ans(a)->From the plot, we can see that the carrier density on the N-side of the…
Q: A 200 V, 50 Hz, inductive circuit takes a current of 10A, lagging 30 degree. Find (i) the resistance…
A: It is given that:
Q: Find the impedance Z, assuming o = 2 rad/s, R₁ = R₂ = 2₁ C = 0.25 F, and L = 1H 44 |N ww LE
A: given circuit is resistances are frequency is…
Q: In a spread system, there are many different kinds of tools that could be used.
A: Step-1-> A spread system is a distributed system that provides reliable and efficient group…
Q: Q6 Obtain the Laplace Transform of the following differential equation given that at time = 0, y =…
A:
Q: 1. In reference to the output waveform below: a. Tabulate the input voltage, diode state, and output…
A: The given output voltage waveform is shown below.We need to tabulate the input voltage, diode state…
Q: Find the average power supplied by the current source for the circuit of Figure in mW. 0.6 ΚΩ 1.8 ΚΩ…
A:
Q: I ONLY NEED THE WINDING DIAGRAM. PLS I NEED IT RUSH
A: To create a winding diagram for a simplex-lap winding, we need to determine the number of coils, the…
Q: Switch S1 has been closed and S2 has open for a long time until the capacitors are fully charged. At…
A: During the time interval , the capacitors were getting charged and the capacitors got fully charged…
Q: unit step whose the frequency response of a system T3 giver os "y [^] = 2 (13) ^ U[^] to time input…
A: Given:Unit step response of a system is, .To find:Frequency response of the system for the input…
Q: Given V(t) = 3(5t + 2)V for 0 ≤ t ≤ 5s, find the current (I(t)) and charge (Q(t)) in capacitor with…
A:
Step by step
Solved in 4 steps with 6 images
- A four-pole induction motor drives a load at 2478 rpm. This is to be accomplished by using an electronic converter to convert a 400-V dc source into a set of three-phase ac voltages. Part A Find the frequency required for the ac voltages assuming that the slip is 4 percent. The load requires 2 hp. Express your answer to three significant figures and include the appropriate units. f= Submit Part B Value I = HA Request Answer Submit If the dc-to-ac converter has a power efficiency of 90 percent and the motor has a power efficiency of 80 percent, estimate the current taken from the dc source. Express your answer to three significant figures and include the appropriate units. HÅ Value Units Request Answer ? Units ?6- Which of the following supply is given to the rotor winding of 3-Phase Induction Motor: a) DC Supply b) AC Supply c) No Supply d) Pulsating Supply 7- 3-Phase Induction Motor will have Starting Torque and Starting Current a) High, High b) Low, Low. c) High, Low d) Low, High 8- Which of the following method is used for controlling the speed of an induction motor: a) Changing number of stator poles b) Supply voltage control c) Frequency control d) All the options are correct 9- Which of the following method cannot be used for starting of 3-Phase Squirrel Induction Motor: a) Star-Delta Starting b) Line resistor startling c) transformer Starter d) Rotor Resistance Starting 10- The rotor of a stepper motor has no: a) windings b) commutator c) brushes d) all of the aboveA 250 V series motor has an armature resistance of 0.2 ohm and a series-fieldresistance of 0.18 ohm. If the speed is 6oo RPM when the current is 32 amps.What will be the motor speed when the load is reduced so that the current is18 amps, under which condition the percent flux change is 50 % of the percentcurrent change.
- Design a DC motor circuit to drive A fan-type load with a torque equation equal to: TL=1.34×10−7ω2TL=1.34×10−7ω2 N.m The fan speed range is from 500 to 1200 rpm. To achieve the required operation, the armature voltage of the motor is adjusted by a single-phase, full-wave, ac/dc converter. The input voltage and frequency to the converter are 480 V (rms) and 50 Hz. choose the motor type, show the motor rating, αα range, Supply voltage, and frequency, and any required other information Modify the design to automatically adjust the voltage drive the load within the specified speed range. show the control variable, controller type, connection, and controller weights. design the single-phase, full-wave, ac/ dc converter. show design specifications, the reason for DC motor selection. correct manual circuit, and correct automatic closed-loop control circuitDesign a DC motor circuit to drive A fan-type load with a torque equation equal to: TL=1.34×10−7ω2TL=1.34×10−7ω2 N.m The fan speed range is from 500 to 1200 rpm. To achieve the required operation, the armature voltage of the motor is adjusted by a single-phase, full-wave, ac/dc converter. The input voltage and frequency to the converter are 480 V (rms) and 50 Hz. choose the motor type, show the motor rating, αα range, Supply voltage, and frequency, and any required other information Modify the design to automatically adjust the voltage drive the load within the specified speed range. show the control variable, controller type, connection, and controller weights.A freewheeling DC motor is driven with 1000 rpm and a nominal load torque of 80Nm. The field circuit resistance is 200 and the armature circuit resistance is 0.2 O. The field coils are fed with a zero degree transmission angle through a single-phase fully controlled converter connected to a single-phase 240V source. The armature circuit is fed from a single phase 400V source through another fully controlled converter. Magnetic saturation has been neglected, the motor constant is given as 0.8 V - s / A - rad. Assuming that there is no fluctuation in armature and field current, find the control angle of the converter feeding the armature at nominal load. If you want to leave the question blank, click again on the option you marked.
- Frequency of emf in the stator of a 8 pole induction motor is 50Hz and the rotor emf frequency is 1Hz. The motor speed is ................ AnswerA value of magnetizing current in a 3-phase induction motor * gives power factor smaller .. larger smaller. .poor large . better O large...poor OA 230v DC series motor takes 30A when giving its rated output at 1400 rpm. It has a field resistance of 0,4 ohms, Calculate the value of the resistance (Ra) of the armature when Eb = 200V. Select the correct response: 0.2 ohms 0.6 ohms 0.8 ohms 0.4 ohms
- Q4/B/ What are the principal characteristics of a series DC motor? What are its uses? Core McA 220V dc shunt motor takes 4A at no load and runs at 700 rpm. Ra = 0.60 ohm and Rsh = 110 ohms. What is the efficiency of the motor when the motor input is 8800 W? a. 81.67% b. 80.2% c. 82.05% d. 79.44%2. Describe the Torque-Slip characteristics of a three phase induction motor.