6. What Will Happen If The Direction Of Current At The Terminals Of A D.c Motor Is Reversed?
Q: The Voltage across any two slip rings of a slip ring induction motor at standstill is 100 V. If the…
A: Given values are - VS-SLine=100VR2Phase=0.4OhmSlips=4%=0.04
Q: determine the frequency of rotor current?
A:
Q: A 4-pole, 650v shunt motor has 720 wave connected conductors on its armature, The full-load armature…
A: Option C
Q: Question 2 Explain in details why does the rotor of the three phase induction motor rotate, then…
A: three-phase induction rates at a slightly slower speed than the asynchronous speed of the…
Q: Explain how dc shunt motor is working with relevant circuit diagram
A:
Q: What is the synchronous speed of a motor that has four poles and is operating on 60 Hz?
A: Given: Number of poles P = 4 Frequency F = 60 Hz We need to determine the synchronous speed of a…
Q: 1. If the blocked rotor test is to be performed on a wound rotor motor, and if the rotor winding is…
A: Always remember , the current flows through a close path. When the rotor winding are open i.e., no…
Q: Q/ How does the synchronous motor work? Why can't the synchronous motor start on its own?
A: This is a good question based on simple electrical machine. And the chapter is basic circuit of…
Q: a 220 V DC shunt motor takes 3 A at no-load. It draws 25 a when running at full load at 1500 rpm.…
A: Diagram of dc shunt motor is drawn in below figure, From diagram field current is equal to, At no…
Q: What motor classification are generally found in use in high requirements like power drives for…
A: What motor classification are generally found in use in high requirements like power drives for…
Q: How is the direction of rotation changed of a split phase
A: Split phase motor consists of two windings 1. Main winding 2. Starting winding
Q: Induction motor speed control technique with bad torque response to sudden changes is O V-F control…
A: Induction motor speed control technique with bad torque response to sudden changes is
Q: s the following correct? True or false? If the rotor of the asynchronous motor is reversed in the…
A: A 3-ϕ asynchronous motor's rotational direction can be reversed by switching any two of the three…
Q: 12 Why does DC motor sometimes run too fast when under-loaded? * O Due to high line voltage O all of…
A: Q. Why does DC motor sometimes run too fast when under-loaded? Ans. Due to weak field Explanation…
Q: Synchronous motor when the load is taken completely while working at full load in all properties…
A: Synchronous motor is constant speed motor always rotates at synchronous speed Ns =120fP
Q: Which one of the following motor types uses permanent magnets in the armature or rotor? A. PM servo…
A: Aim- To find which one of the following given optionsmotor types uses permanent magnets in the…
Q: a) Explain the shunt-winding type universal motors.
A: As per our policy, i am attempting first question. Shunt-winding type universal motors, The…
Q: In Synchronous Motor Operation How the regulating characteristics can be obtained from V curve?
A: The V curve is the graph between the stator current and the field current for different loads on the…
Q: In forward-Reverse control of three phase motor, which of the following choice is correct for…
A: In forward Reverse control of three phase motor for select push button we require two ON button and…
Q: A three-phase, six-pole, 60 Hz, 230-volt wound rotor motor has its stator connected in delta and its…
A: Given Estator =230 volts. Fstator=60Hz Nrotor=0.8 *Nstator.…
Q: A 3 phase, 4 pole, 60 Hz induction motor is running at a speed of 1720 rpm. Input power to the motor…
A: Given: 3-phase induction motor with specification Number of poles, P=4 Frequency, f=60 Hz Rotor…
Q: What is the effect of changing the sequence of 02 phas in the electric feeder (single phase,…
A: According to Bartleby guidelines we are supposed to answer only one question at a time if they are…
Q: A 12 pole, 3 phase, 50 Hz, induction motor runs at 463 rpm, determine the frequency of rotor…
A: Given : induction motor running at 463 rpm 12 pole , 3 phase , stator frequency f = 50 Hz N = 463…
Q: A 3-phase, 50 Hz, 8-pole asynchronous motor rotates at a speed of 720 rpm. What is the frequency of…
A: Given, A 3-phase asynchronous motor f=50 HzP=8Nr=720 rpm
Q: Q3/ Why is a starting resistor used in de motor circuits?
A: The back e.m.f of the DC motor is Eb = ΦZN60XPA Where Φ is flux/pole Z is total…
Q: 5. How Can You Reverse The Direction Of Rotation Of A D.c Motor?
A:
Q: A. The DC motor in Figure 3 on Worksheet 8 is a a) cumulatively connected short-shunt compound DC…
A:
Q: Question 9 A 12-pole, 3-phase, 60 Hz induction motor runs at 475 rev/min. Slip speed is Not yet…
A: Given data F = 60 P= 12
Q: OA: what will Happen if the Direction of current At the Terminals of AD-c Motor is Rversed? OB.why…
A: Ans. A When the direction of current at the terminals of the D.C. motor is reversed, the motor would…
Q: 18. What is the principal reason for using star-delta motor?
A: Need to explain about star delta motor
Q: How is the speed of a consequent-pole motor changed? Select one: A. REVERSING THE CURRENT FLOW…
A: This problem is based on the speed change. And how to the speed of a consequent-pole motor changed.…
Q: What is difference is synchronous and a synchronous motor?
A: There are many differences between synchronous motor and asynchronous motor. 1. In synchronous motor…
Q: How does the starting torque responsible in the use of the starter for the 3 phase induction motor
A: In the 3 phase induction motor, the value of the armature resistance is kept minimum to avoid the…
Q: For the following diagram, match each part of the DC motor to the correct label. Determine the…
A: Dc motor convert the Dc electrical power into the mechanical power. The circuit of the dc motor is…
Q: e) How is the direction of the rotating field changed in the three-phase induction motor? f) Write…
A: As per the guidelines, we supposed to answer first three part of the question at a time so please…
Q: A three phase slip ring induction motor has a star connected rotor. It has an induced emf of 60…
A: Step 1 Induced emf E = 60V = 603 = 34.64 V / phase Rotor resistance per phase R2 = 0.5Ω Rotor…
Q: The label speed of the three-phase, 50 Hz ringed asynchronous motor is 896 rpm and the stator groove…
A:
Q: What is the reason of the "pendulum" in a synchronous motor and how can it be corrected?
A: The term "pendulum" in a synchronous motor defines "Hunting". Hunting is such a phenomenon of…
Q: 2. How many poles does a synchronous motor have if it operates at 200 rpm when connected to a…
A:
Q: How can the direction of rotation of any three phrase motors be reversed
A: How can the direction of rotation of any three phrase motors be reversed?
Q: Please Explain the Following 1 How a DC motor works? 2.Compare and contrast DC generator and DC…
A: 1) DC motor works on the principle of Fleming's left hand rule states that, when current carrying…
Q: Vhat is the difference of the wound rotor three phase induction motor. For what purpose is it used?…
A: (i) A wound rotor motor is a variation of the three-phase induction motor, designed to provide high…
Q: Question 2 Explain in details why does the rotor of the three phase induction motor rotate, then…
A: three-phase induction rates at a slightly slower speed than the asynchronous speed of the…
Q: 5. How does the saturation in the machine affect the speed of shunt motor?
A: We can find that how the saturation in the machine affect the speed of the shunt motor by the speed…
Q: Induction motor speed control technique which is not recommended to be used at low speed is O V-I…
A: V-F control
Q: What determines the rotation of a shaded-pole motor
A: A shaded pole motor is a type of single phase induction motor. It is an AC motor.
Q: A 120 volts shunt motor has an armature resistance of 0.08 ohm and filed resistance of 60 ohms. What…
A:
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- Describe the purpose of a PV and PQ curves. Draw the curves and explain its position (stability & unstable areas) Describe the difference between each curve by reference to the curves and explain when each one would be usedSubject Linear ControlPlease i only need answer for MCQ.Design a full wave rectifier based on the circuit shown in Figure 5 below: N: N2 D3 RL ww US D, Figure 5 The required specification for the full wave rectifier circuit includes the peak output voltage of 5 V, deliver 100 mA to the load R1, and produce an output with a ripple of not more than 5 percent. An input line voltage of 220 V (ms), 50 Hz is available. Given V, =0.7 V. (d) Calculate v, (max). (e) Find the required turn ratio for the transformer. (1) Determine the Peak Inverse Voltage (PIV). (g) What is the effective load resistance? (h) Determine the required capacitance of the filter capacitor.
- 3- What are the advantages of full wave rectifier comparing to half wave? 4- What is the effect of adding capacitor in parallel to the load at the rectifier output? PUF6. A conductor carries a current that is equivalent to a 2.5 amp continuous current in one direction and a superimposed full-wave rectifier in the opposite direction. What is the maximum value of the latter if the average conductor current is zero?An AC voltage controller with common cathode has O a. two diodes to be conducted at a time b. one SRC to be controller at a time O c. two SRC to be controller at a time O d. four diodes to be conducted at a time
- What is the difference between a positive clamper and a negative clamper? Explain with the aid of circuit diagrams and output waveforms.In a linear power supply, where will you connect the capacitor on order to reduce the ripple output of a rectifier circuit? O in parallel with the transformer O in series with the transformer O in parallel with the load resistor O in series with the load resistorA half-wave rectifier is needed to supply 15-V dc to a load that draws an average current of 250 mA. The peak-to-peak ripple is required to be 0.2 V or less. What is the minimum value allowed for the smoothing capacitance? If a full-wave rectifier is needed?
- What will be the out put of the following meters, if an average responding a.c meter of halfwave rectifier read (4.71v), and true form factor of input waveform is (1.414).4- What is the effect of adding capacitor in parallel to the load at the rectifier output? Note: Please do not handwriting4- What is the effect of adding capacitor in parallel to the load at the rectifier output? Note: Please do not handwriting and write the answer briefly