The no-load terminal voltage of a separately excited DC generator is 220 V when the generator is driven at 1800 rpm. With the field current maintaining constant, the generator is loaded and delivers an output power of 50 kW at a terminal voltage of 215 V. Calculate the speed of the generator at this load. The armature winding resistance is 0.18 \Omega .
Q: Determine the values of the link currents i1, i2 and i3 in the circuit shown in the figure.
A: KIRCHHOFFS CURRENT LAW: It states that the algebraic sum of currents entering into the node is…
Q: (a) In the network below, the switch opens at t = 0. Use Laplace transforms to find vo (t) for t >…
A:
Q: a) A six-pole, lap-wound, 220 V, shunt-excited d.c. machine takes an armature current of 2.5 A when…
A: Step 1:Step 2:
Q: B-6-4. Show that the root loci for a control system with K (s² + 6s+ 10) G (s) = s² + 2s + 10 H (s)…
A: Step 1:Step 2:
Q: Explain the principle of operation of a dual power supply with 220V AC
A: The objective of this question is to understand the working principle of a dual power supply that…
Q: Solve number 1 for this example. Show all work and tips. Thank you
A: However, based on the general concepts of mesh analysis and the information you've provided, here's…
Q: 3. The 6-V zener diode in Fig. 7-12 has a maximum rated power dissipated of 690 mW. Its reverse…
A: Here's explanation:
Q: Please answer in typing format
A: Given that, x=0;y=0;0≤z≤10According to biot savarts law,H=4πRI(sinθ1+sinθ2)Current I=2A Let OPQ…
Q: Solve and show illustration A 20-kW 127.4 -V separately excited dc machine is operated at a…
A: Step 1:
Q: Calculate the total impedance and total currentin the following circuit.
A: Step 1: Step 2: Step 3: Step 4:
Q: Which of the following is true about the rotor windings of asynchronous motors?a. In rotor motors…
A: Option a: This option is correct because the three-phase windings of the synchronous machine are…
Q: Please answer in typing format
A: ANSWER:To calculate the resistor value for a given timing requirement using an RC…
Q: Please solve for all cases ..I will up vote
A: Step 1: Step 2: Step 3: Step 4:
Q: Plot the V curves (no load, partial loads and full load) for a 7.2 kW, 208 V, three phase, star…
A: To plot the V curves for the synchronous motor, we need to calculate the armature current (Ia) and…
Q: Find Req, and calculate i, i1 and V2 please answer in typing format
A: Step 1: first we calculate the total resistance as-as we can see 9 ohm is in parallel of 72 ohm and…
Q: 2. Calculate the phase and line currents in the three-phase circuit given below, where Va = 202 40°…
A: The objective of the question is to calculate the phase and line currents in a three-phase circuit.…
Q: Definition of the followingconcepts: LIDSTCNOCTString inverter Central inverter,Microinverter, MPPT…
A: LID (Light-Induced Degradation): When solar cells are first exposed to sunlight, their performance…
Q: Help me Solve this plz
A: Sure, I can help you with the Laplace transform problem in the image.Applying Laplace Transform to…
Q: Using the values shown, What is the total current of the circuit in mA? LAMP 1 RESISTANCE = 8000 E =…
A: Two lamps are connected in parallel.Both have 800 Ω resistance.Equivalent resistance, R =…
Q: Given a signal x(n)=n+1 and N=8, evaluate the Fast Fourier Transform using signal flow graph. (Use…
A:
Q: Electronic
A: Based on the image you sent, the circuit appears to be a combination of a voltage divider and a…
Q: 3 1 м w 255 510 YA 5 200 Find I° by using super position 3:17 ༥༤ 3:16 ص
A: Step 1:Step 2:Step 3:Step 4:
Q: A D flip-flop inputs and a trigger signal are given in the figure. In this case, how is the waveform…
A:
Q: A 400 V, 50 Hz, three-phase motor takes a line current of 15.0 A when operating at a lagging power…
A: Step 1:Step 2:
Q: list three key items that shoild be monitored by a modern control system
A: System Performance Monitoring: This involves continuously tracking various aspects of the system's…
Q: Q3: Calculate the convolution for the following tow functions h(t) & g(t)? (5 m 0 h(t) |h(t)=e¯u(t)…
A: Thank you
Q: Pls help.me answer the following, show neat and whole solution and kindly send a screenshot of…
A: Let's delve deeper into the questions and provide a comprehensive explanation.**Contents of the…
Q: Please work out the voltage regulation using the information in the images
A: If you have a circuit diagram that includes a voltage regulator, I might be able to help you analyze…
Q: Question 2 The op amp has v₁ = -0.1 V, a random input offset voltage, Vos ≤ 10 mV and input bias…
A:
Q: Help step by step
A: Step 1:When applying superposition theorem we replace another voltage source with short and current…
Q: Please answer in typing format
A: To solve for the three source currents using the method of symmetrical components, we'll first…
Q: HA 60 MVA, 11/132 kV three-phase, 50 Hz, transformer has the following operation parameters; Copper…
A: Reference , concept and examples:Important formula: Thank you
Q: Please answer in typing format
A: Given that,Speed of mobile station = 50m/sFrequency of transmission = 1.5GHz=1.5∗109HzDoppler spread…
Q: Please answer in typing format
A: Step 1:pole = 6In block rotor test the wattmeter indicates only the copper loss…
Q: Q.1: Find the Fourier Transform F(w) for the following signals: f(t) -3 -2 1
A: Step 1: Step 2: Step 3: Step 4:
Q: handwrite solution with step by step answer and explain each part along the way . any AI generated…
A: Hope the answer is clear to you . If any query then raise it.Kindly Do rate this helpful.....Thank…
Q: You see incorrect answer can you please show all work
A:
Q: The electric field of an electromagnetic wave propogating in air is givenby E(z, t) = (4 cos ((6 ×…
A: The objective of this question is to find the associated magnetic field H(z, t) of an…
Q: IR = = 8mA∠0° IL = 12.732mA∠-90° Is(p-p) = 15.04mA∠-57.86° I got the currents, can you help me im…
A:
Q: A voltage of 25 cos 500t V is applied to 25 mH inductor. The inductor current is zero at t = 0. Find…
A: To find the power absorbed by the inductor, energy stored in it, the first time when power absorbed…
Q: B-6-8. Consider a unity-feedback control system with the following feedforward transfer function: G…
A: Step 1:Step 2:Step 3: Poles are shown using Red Cross.Step 4: Actual root locus based on calculation…
Q: (c) For the circuit shown below: i. Calculate the total current flowing through the battery. ii.…
A: Step 1:Step 2:
Q: 3. A 50-mile, 60-hz, three-phase line composed of one-900 MCM, 54/7 ACSR conductor per phase has…
A:
Q: which or which of the following are the stator losses in asynchronous motors?1. copper losses2. iron…
A: Out of the given options, both 1. copper losses and 2. iron losses are stator losses in asynchronous…
Q: Q4: A pulse radar operates at 2 GHz and transmits a power of 1 kW. If it is to be used to detect a…
A:
Q: show all the work
A: Step 1:Step 2:
Q: 2 ли 2 VSA 2 3 ли 0.25m F 2 ли 2 1m H V52 VS₁ = 12 cos 10³t 3 Vs₂ = 6 sin 10³t i (t) = ?
A: KIRCHHOFFS CURRENT LAW: It states that the algebraic sum of currents entering into the node is…
Q: (a) Use Laplace transforms and nodal analysis to find vo(t) for t> 0 in the network below. Assume…
A: Based on the image you sent, it appears to be a circuit diagram for a voltage regulator. Voltage…
Q: EXERCISE 13.7.2 (a) - 882 20s + 500 Find the initial and final values of the time function f(t) if F…
A: Step 1: Step 2: Step 3: Step 4:
Q: Using Figure 1, if the source voltage, V1, is 5 Vp and the voltage measured across the capacitor,…
A:
Please answer in typing format
Step by step
Solved in 2 steps
- A DC chopper is used in regenerative breaking mode of a dc series motor. The dc supply is 600 V, the duty cycle is 70%. The average value of armature current is 100 A. It is continous and ripple free. What is the value of power feedback to the supply ?Speed control of a 140 V, 1.68 kW DC motor single phase thyristor full wave AC-DC It is made by the converter. AA supply voltage 220 V (rms) Is 50. In the converter It is assumed that there is no loss. The armature resistance of the DC motor is = 0.417 Q. Very a large inductance is connected in series with the motor. The motor voltage constant is = 0.0964 V/rpm. The motor can be considered as a permanent magnet DC. According to this, a) Draw the driver (converter-motor) power circuit. b) Calculate the nominal current of the motor. c) Supply voltage, supply current, converter output voltage for ignition angle a = 30 ° and Draw the waveforms for the converter output current. d) = 950 rpm and for nominal current, d1) The firing angle of the converter, d2) Effective value of supply and thyristor current, d3) Supply power factor, calculate.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 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 circuitL-1). The 3-phase wound-rotor induction motor has .... . a) high starting torque b) low starting current c) both "a" and "b" d) neither "a" nor "b" L-2). The 3-phase wound-rotor induction.........a) motor has a wire wound rotor b) motor's rotor can be connected to an external resistive load by way of slip rings and brushes c) motor requires more maintenance than the 3-phase squirrel-cage induction motor d) all of the above L-3). The 3-phase wound-rotor induction motor's rotor circuit's resistance should be adjusted so it is__________ during starting. a) low b) high c) either "a" or "b" d) neither "a" nor "b" L-4). Will a 3-phase wound-rotor induction motor start with no external circuit connected to its rotor leads? a) yes b) noA 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.
- A four-pole induction motor drives a load at 2500 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. Find the frequency required for the ac voltages assuming that the slip is 4 percent. The load requires 2 hp. If the dc-to-ac converter has a power efficiency of 88 percent and the motor has a power efficiency of 80 percent, estimate the current taken from the dc source.A DC chopper is used in regenerative braking mode of a dc series motor. The dc supply is 600 V, the duty cycle is 70%. The average value of armature current is 100 A. It is continuous and ripple free. What is the value of power feedback to the supply ?A DC, separately excited motor is used to drive a constant-torque load. The field circuit is excited by a full-wave, AC/DC SCR converter. The armature circuit of the motor is connected to a constant dc voltage source of 160 V. The inductance of the field circuit is large, and the field current is continuous. The field AC voltage (input to the converter) is 147 V (rms), and the field resistance is 100 N. The armature resistance is 1.2 N. When the triggering angle of the SCRS is adjusted to zero, the motor speed is 1000 rpm, and the armature current is 10 A. Calculate the average current and dc power of the field i. A1 F1 circuit when the triggering angle is equal to 15°. La Ra If A a P; W M • If the motor speed is to be increased to 1400 rpm, what is the F2 A2 triggering angle? (a) Circuit a =