Which DC Motor(s) is(are) suitable for constant speed loads? (You can select multiple types) O A) Series DC Motor O B) Permanent Magnet DC Motor O c) Compound DC Motor D) Shunt DC Motor
Q: 3. HOW THE BACK EMF OR COUNTER EMF IS PRODUCED? 4. DIFFERENTIATE THE TYPES OF DC MOTOR THROUGH: a.…
A: Since there are multiple questions asked in the same question, hereby solving the first question…
Q: 8. A shunt motor is running at 1200 rpm for a load which requires an armature current of 50 Amp from…
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Q: Q.4 (a) Sketch the equivalent circuit for a shunt connected DC motor. TM equation of shunt connected…
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Q: Q1) How can run dc motor from right to left? Explain all cases.
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A: Need to find true false
Q: 2- Why is series DC motor used for accelerating heavy masses?
A: Need to find why DC series motor is used for accelerating heavy loads
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Q: Q2/ A/ What will happen to torque if back emf and speed of the DC motor is doubled, and why?
A: As per Bartleby guidelines we are allowed to solve only one question,please ask the rest again. The…
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Q: series motor, the armature torque is directly proportional to the armature current" True False
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- A. The DC motor in Figure 3 on Worksheet 8 is aa) cumulatively connected short-shunt compound DC motor b) cumulatively connected long-shunt compound DC motor c) differentially connected short-shunt compound DC motor d) shunt DC motorB. Is the DC motor in Figure 1 on Worksheet 8 turning in the same direction as that in Figure 3?a) yes b) no1- b)Does a DC motor's full-load speed have to be the same as its no-load speed in order for it to be classified as a "constant speed" motor? a) yes b) no c). The voltage produced by the generator action of a rotating DC motor is called a) counter-electromotive force (CEMF) b) back-EMT' c) either "a" or "b" d) neither "a" nor "b" d). Which of the following is/are a factor that will determine the amount of back-EMF generated by the generator action of a DC motor? a) number of armature conductors b) number of lines of flux (flux density) c) the speed at which the conductors are cutting the lines of flux (rate of incidence) d) all of the aboveDoes a DC motor have to be turning in order for it to develop torque? a) yes b) no Most DC motor consist of many turns per armature loop as well as many evenly distributed loops per al mature. a) true b) false Brushes a DC motor. a) are part of the electrical circuit in b) provide a sliding electrical contact to the commutator of c) are made of a material which is softer than the commutator segments of d) all of the above
- A 4 pole, (01*10)V, DC shunt motor operates on a load current (1*10)A, having wave connected armature with 200 conductors. The flux per Pole is 25 m Wb. Resistance of shunt field winding is 1 ohm and resistance of the armature is 0.15 ohm. b) what will be the factors to minimize the back emf?A 110-V, 1-phase, 4-pole, 60-Hz induction motor has the following circuit constants: R1 = R2’ = 1.6 ohm,X1 = X2’ = 1.8 ohm, Xm = 60 ohm; core loss is 16 W and friction and windage loss is 12 W. Determine theefficiency of the motor at 0.04 slip by using (a) the exact equivalent circuit and (b) the approximateequivalent circuit1. Soru Which DC Motor(s) is(are) suitable for constant speed loads? (You can select multiple types) A) Permanent Magnet DC Motor B) Compound DC Motor O C) Shunt DC Motor O D)Series DC Motor
- 7. A 4-pole, 500V shunt motor has 720 wave connected conductors on its armature. The full-los armature current is 60A and flux per pole is 0.03 Wb. The armature resistance is 0.020 and th contact drop per brush is 1V. then the full-load speed of the motor is -- a) 675 r.p.m. b) 690 r.p.m. c) 705 r.p.m. d) none of the previous,A 4 pole10V, DC shunt motor operates on a load current 10A, having wave connected armature with 200 conductors. The flux per Pole is 25 m Wb. Resistance of shunt field winding is 1 ohm and resistance of the armature is 0.15 ohm. a) what would be the back emf?A 500 V, 6-pole, 50 Hz, three phase, 8.5 kW, star connected induction motor has a no load slip of 1.8% and full load slip of 4.5%. Determine the following: (a) The speed of the rotating magnetic flux in r/min. (2) (b) The no-load speed in r/min. (2) (c) The full-load speed in r/min. (2) (d) The frequency of the rotor current at full-load in hertz. (2) (e) The full-load shaft torque in Nm.
- A 4 pole, wave wound, dc series motor is driven at 1600 rpm and takes armature current of 60A. The flux per pole is30mWb. Armature has 300 conductors. what would be the armature torque and back EMF.Q4. What do you mean by circle diagram of a 3-phase induction motor? Answer the following: What is its significance (importance) in analysis of motor Test performed to compute the data for circle diagram Describe the procedure to develop the circle diagram Explain the parameters which could be determine from circle diagram (i) (ii) (iii) (iv)If the field winding of a DC shunt motor gets disconnected while in normal operation the speed will decrease to a tremendously low value and the motor may get stop. * O True O False