9.9 Calculate the rms value of the induced emf per phase of a 10-pole, 3-phase 50 Hz Alternator with 2 slots per pole per phase and 4 conductors per slot. Coil span= 150° and the flux per pole = 0.051 Wb. [Ans: 422.17]
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![9.9 Calculate the rms value of the induced emf per phase of a 10-pole, 3-phase
50 Hz Alternator with 2 slots per pole per phase and 4 conductors per slot. Coil
span=
150° and the flux per pole = 0.051 Wb.
[Ans: 422.17]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F86741b42-e17c-4714-b09c-fc3865337f38%2F2ee0f789-5a57-422c-80b3-c8113e626cd5%2F4jawye_processed.jpeg&w=3840&q=75)
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- Please solve , last time i got wrong answerFind the rms value of the induced emf per phase of a 10 pole, three phase, 50 Hz alternator with 2 slots per pole per phase and 4 conductors per slot in two layers. The coil span is 150°. The flux per pole is 0.12 Wb (a) 994 (c) 1020 53. (b) 864 (d) 960A three-phase, 4-pole alternator runs at 1,800 RPM. Each phase covers two slots under each pole. The full pitch armature coils have 4 turns per coil and there are 2 coil sides per slot. The flux/pole is 6,000 kilolines distributed sinusoidally. (a) What is the distribution factor? (b) Determine the emf per phase. Ans. 0.966; 494V
- There are 160 slots in a 3-phase, 8-pole, 50 Hz., star connected alternator. There are 4 conductors in each slot and all the conductors in a phase are connected in series. Coil span is 150° electrical and the flux per pole is 0.08 Weber sinusoidally distributed. Calculate the emf induced per phase.9.4 A 3-phase, 16-pole, Alternator has a star-connected winding with 144 slots and 10 conductors per slot. The flux per pole is 0.03 Wb sinusoidally distributed and the speed is 375 rpm. The winding is short chorded by 1 slot. Calculate the no-load terminal voltage. [Ans: 2617.9]The step down DC chopper uses DC source voltage V(dc) = 200 V and resistive load impedance of 10 ohm. The duty cycle is 0.4 the voltage drop across the switch may be taken as zero, Calculate : (a) Average and RMS value of output voltage. (b) Average and RMS value of output current.
- 3.9.6 A 3-phase. 16-pole Alternator has 192 stator slots with 8 conductors per slot. The conductors of each phase are connected in series. The coil-span is 150 electrical degrees. If the flux per pole is 0.064 Wb sinusoidally distributed, find the phase and line values of no-load voltage, if the stator is star-connected and the required frequency is 50 Hz. [Ans : Kp = 0.966: Ka = 0.958: E = 3367: E₁ = 5830] 9.7 A 4-pole, 50 Hz, 3-phase, star-connected Alternator has 60 slots with 2 conductors per slot. The winding is short-chorded by 2 slots. If the sinusoidally distributed flux per pole is 0.062 Wb, calculate the no-load terminal voltage. [Ans : Kp = 0.973 : Ka = 0.956: E=257.54 E₁ = 446.07] 9.8 An eight pole, 3-phase, 60° phase-spread, double layer winding has 72 coils in 72 slots. The coils are short-chorded by 2 slots. Calculate the winding factors for the fundamental and the third harmonic. : [Ans Kp1 = 0.9397: Kd₁ = 0.9597: Kp3 = 0.5: Kd3 = 0.667] 9.9 Calculate the rms value of the…9.6 A 3-phase. 16-pole Alternator has 192 stator slots with 8 conductors per slot. The conductors of each phase are connected in series. The coil-span is 150 electrical degrees. If the flux per pole is 0.064 Wb sinusoidally distributed, find the phase and line values of no-load voltage, if the stator is star-connected and the required frequency is 50 Hz.
- 1. Impedance is the total opposition to an AC circuit caused by electric penalty tions, the tra capa multiple pacitive systema 62 Fundamentals of AC Electricity Questions for This C a. 1. Draw a diagram of an AC sine wave and identify its peak voltage and peak-to-peak voltage levels. b. 2. Explain the term frequency as it refers to AC electricity. c. 3. Discuss the difference between a load center and a fused disconnect. 2. WE wa 4. Explain how you would test for voltage in a fusible dis- connect on the line-side and load-side terminals. vi ci 5. Trace the path of a generated AC voltage from the generat- ing station where it is produced to the point where you would connect it to a machine in a factory. Be sure to iden- tify all the important parts of the system between the gen- eration station and the disconnect on the machine. a. be 3. True or False inductive reactance, capacitive reactance, and resistan 2. The units of impedance areA 3-phase 4-pole alternator has 48 stator slots carrying the 3-phase distributed winding. Each coil of the winding is short chorded by one slot pitch. The winding factor is given byCalculate the RMS value of the induced emf per phase of a 10-pole, 3-phase, 60_Hz alternator with 3 slots per pole per phase and 4 conductors per slot in two layers. The coil span is 160°. The flux per pole has a fundamental component of 0.125 Wb and a 25% third component.