1. A group of dc motors is to operate at 220 volts at a place that is 400 ft away from 230-volt mains. What diameter (minimum) of copper wire is to be used in connecting the motors to the main, if the motors take a total of 75 A? a. 0.25 in b. 0.33 in c. 0.18 in
Q: 1. Each of the following statements regarding stator flux of an induction motor is true EXCEPT a. it…
A:
Q: . What is the effect of the field excitation to the back emf of the synchronous motor?
A: Synchronous motor- It is an electric motor which is operated at AC supply. As the name suggest, its…
Q: Please solve for the branch currents using SUPERPOSITION THEOREM only. Please show your clean and…
A: The given circuit is as shown below,
Q: Question 2 5Ω 2F 12 3F Figure 2.1 Consider the system shown in figure 2.1 (a) (b) (c) (d) (e) Obtain…
A:
Q: Please I have exam I need to explain to me transistors and give me questions with their solutions…
A: BJT is a current controlled Device in which base current control the mode of operation of BJT Mode…
Q: QI: Three infinite current sheet K, =-60 az at y = 7 and K = 20 az at y = 5 and K = -10 az at y %3D…
A: We need to find out magnetic field for given current distribution
Q: Guestian!- A lossless dipole anteena with an Imput Impedance of 732 ís connected to ☺ a transmission…
A: Maximum gain of the antenna can be calculated as by using the formula, Gain=e×Do Here, 'e' is…
Q: Rs=500 RG=10MO RD=1kn Rs=1kn RL=9kN C1=0.001µF C2=0.1pF C3=0.001pF Determine the voltage gain Ay in…
A:
Q: z, four-pole, induction motor connected in star
A: Three Phase Induction machine-This Induction machine comprises of rotor and stator as it basic parts…
Q: (d) In the cicuit shown in figure 6 find the currents I, and 2, express your answer as phasors.…
A:
Q: 1. Find Vx using a. Maxwell b. Nodal Analysis 20 + Vx - 6 A 15 V 3Vx 50
A: In this question, We need to determine the voltage Vx using the maxwell and nodal analysis.
Q: the amount of time these devices would need to be in operation before 1 million Coulombs of charge…
A: Given data, Charge is given Q=105 C (a) i = 0.0041 A Charge is given by, Q=i×t105=0.0041×tt=2.43×107…
Q: ЗА 8A 4A I2 7A Figure 3
A:
Q: 1. Find the no-load phase and line voltage of a star-connected, 4-pole alternator having flux per…
A:
Q: A beam of electrons travels at 6x106 m/s through a uniform magnetic field of 6.5x10Tat right angles…
A: Given data, An electron beam travels through magnetic field. v=6×106 m/sB=6.5×10-1 Tθ=90°
Q: Question 2 5Ω 2F 10 3F Figure 2.1 Consider the system shown in figure 2.1 (a) (b) (c) (d) (c) Obtain…
A:
Q: 28) The power quality factor ( flicker) is appear on: (A) Current. (B) Voltage. (C) Frequency. (D)…
A: We need to select correct option for given statement.
Q: 23. A balanced three-phase wye system has a phase voltage of 277V and a line current of 26A. Which…
A:
Q: 4. Find i using Thevenin's Equivalent Circuit. 100 ma 120 V 9.6 0 19.2 0 100 ma 120 V 5.76 0 100 ma
A:
Q: Which statements correcty describe dead time and its use in practical svitching circuits configured…
A: Dead time is used to prevent the cross conduction current through the inverter leg because of the…
Q: Find I in the circuit using the superposition principle. 2Ω 6Ω ww I 82 ww 16 V (* 12 V 4 A
A:
Q: 17- When you are as an engineer, when will you decide to use Voltage-Shunt N.F.B? 18- When you are…
A: As per the guidelines given to us we can only provide the solution of one question in multiple type…
Q: 1- Verify(KCL) for node (a) and note (b). 2- Verify (KVL) for loopl and loop2. 3- Can (KCL) be…
A:
Q: 4) What are the noise margins of a minimum size CMOS inverter in which both W/L ratios are 2/1 and…
A: CMOS inverter is a device used for generating logical sequences, it is a very essential component in…
Q: Can a voltage be negative? Explain
A: In this question, We need to explain the negative voltage is be negative or not?
Q: 1. Solve for the loop currents I1,12 & 13. (a) what are the loop current equations (b) use Cramer's…
A: given here a circuit and asked to write the loop current equation. and by using crammers rule and…
Q: A 230V DC series motor operates at its full load current and speed of 22A and 750 revolutions per…
A: Types of DC Motor Seperetely excited motor Series Motor Shunt Motor Compound Motor Differential…
Q: ven the Standard Equation the DE, Identify the roots d³y 3d²y + 4y = 0 dx³ dx² A) m1= -1 ; m2= 2 B)…
A:
Q: 32. An alternating current is particular through i = 10 sin 314 t. The time taken to produce two…
A: Given data, Alternating current, i=10sin314t
Q: A 250-V circuit, consisting of a resistor, an inductor and a capacitor in series, resonates at 50…
A:
Q: 2- Delermine the velue Gf Rs which is requireel to conneel it with the moving Cail to obtain…
A: We need to check whether the given solution is correct or not
Q: A circuit consists of an inductor which has a resistance of 10 Ω and an inductance of 0.3 H, in…
A: In this question we need to find a impedance of circuit at 40 Hz , resonance frequency and peak…
Q: (d) Find V, in the circuit shown if figure 2 162 1 36V 4V1 1.51 62 Vị Figure 2
A: In this question we need to find a voltage V1 .
Q: Impedances. In alternating current, the resonance frequency is defined as the frequency that would…
A:
Q: Design a Programmable Logic Array (PLA) with 3 inputs and 3 outputs. The binary output is two…
A: The truth table can be obtained based on the given condition and the reduced Boolean expression can…
Q: Given: Vin = Vpeak sin(w)(t) Vpeak = 5V R1 = 1k ohms Using ideal forward voltage of…
A:
Q: 13.2. The incremental fuel cost in S/MWh for four units of a plant are df2 0.0096P,2 + 6.0 df, 0.012…
A: The incremental cost of power generation is expressed by Greek letter lambda. The unit of…
Q: The summation of all expenditures to produce a kw-hr power source? (A K-hr power source B Production…
A: In this question we need to choose a correct option
Q: Design a system with two generators (at 11 kV) and three loads, two transformers and four…
A: system design requirements loads =3 transformers =2 transmission line = 4 generators =2 at 11 kV…
Q: 1- IF AX= -2000 and BL= 5, when IDIV BL get executed an error occur, error then justify your answer…
A: Given: If AX=-2000 and BL=5, when IDIV BL gets executed an error occur. To find: Fix this error and…
Q: Let the three-phase electrical system be illustrated in Figure . Knowing that its phase sequence is…
A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: 4. At motor start-up, the current will spike as the motor begins to turn. This spike is know as?…
A: Synchronous speed is the speed at which synchronous machine works and it depends on frequency and…
Q: system uses even parity to detect errors during data transmission. If the data to be transmitted is:…
A: For even parity detector the number of 1 's in the data should be even and same with that of the…
Q: V.(s) Determine the transfer function VO of the circuit as illustrated below. C2 ing R vo(t) v:(t)…
A: In this question, We need to determine the transfer function? i.e Vo(s) /Vi(s)
Q: 2. Design a diode clamper to generate the Vo from Vishow in figure below Vo 10v 2.7v -17.3
A: We need to design a circuit for given input and output
Q: 1- Define H parameters? 2- List the two dependent variables used in h- parameter representation 3-…
A:
Q: Discuss the following 1. Application of FDAS (Fire Detection and alarm system) 3.Device of FDAS
A: The fire alarms systems are in existence from several decades, but the use of modern engineering…
Q: Find the transfer function, G(s) for the translational mechanical systems shown in the figure below
A: In this question, We need to determine the transfer function, G(s) for the translational…
Q: The next seven questions pertain to the situation described below. A circuit is constructed with…
A:
Q: 19. An electrical circuit is said to be more inductive when Current leads voltage Current lags…
A:
l3
answer 1 2 and 3
Step by step
Solved in 3 steps with 3 images
- a)Please explain the connection methods of Current and Voltage Transformers? b) Control the DC motor speed and direction. Draw the circuit.An 8-pole, 600 rpm dc shunt with 778 wave connected armature conductors of 12.5 ohms resistance at a terminal voltage of 250 volts. The armature resistance is 0.25 ohm the shunt field resistance is 250 ohms. Determine the flux per pole? (Our subject is Electrical Machines 1 ) (I need a clear answer and solution. Thank you so much)Q/Two dc generators A and B has the following characteristics:GA: rated voltage=150 volt: rated carrent=30Ampere: armature resistance (0.4Ω).GB:no_lond voltage=160Volt: rated carrent=20Ampere: armature resistance=(0.6Ω).The generators are connected in paralled. Draw the circuit diagram, then find:no_load circulating current and no_load voltage?At what carrent the generator B will Be floating? The maximum possible land power
- Question 11 Design a Duplex layer simplex lap winding DC machine armature winding by providing a complete wiring diagram with the following Number of Poles: 2 Number of Slots; 8 Thank you and Godbless ASAP pleaseeQ choose the correct answer: 1-Brushless excitation system consisting of.... a- Stator field winding and power diodes b-stator and rotor field winding and capacitor c- stator and rotor field winding and capacitor d- Everything mentioned in the options 2- Voltage generated per phase in an alternator is proportional to a- Flux per pole b- Number of turns in armature c-Winding factors d- Everything mentioned in the options e- Frequency of waveform 3- If input mech. Power of SG constant, the functionality of AVR is a- Control flux of rotor b-Control terminal voltage c- Control flux and terminal voltage d-Control Load anglegenerator is 600 RPM, and on load generated voltage is 110 V. Calculate 03) A 4 pole wave wound short shunt compound DC Generator supplies a current of 100 A to a load of 10 KW through a cable of resistance Rcable is hundred times the resistance of one of the armature conductor, given that the series field resistance is 0.02 ohm, shunt field resistance is 200 ohm, flux per nole is 0.3 Web, total number of armature conductors is 120, speed of armature resistance. 1.
- A 400V, 60HZ, 6-pole wye connected , 30 induction motor draws 75KW with a line current of 100A. The core loss is 2KW, Friction and Windage loss is 1.2KW. The stator resistance between two terminals is 0.352. What is the efficiency if the motor runs at a slip of 2.5%?Refer to Image. Suppose we apply 160 volts AC to 80 turns of the primary winding but the secondary winding only has 25 turns. What is the turns ratio in this system? Please draw imagesIdentify the DC Generator used for Arc Welding purpose. With a neat sketch explain its working. List it's advantages and disadvantages.
- A belt-driven 202 Hp shunt wound DC generator is running at 465 rpm and issupplying full load to a bus bar at 232 V. At what speed will it run if the belt breaksand the machine continue to run taking 9 kW from the bus bar? The armature andthe field resistances are 0.05 Ohm and 100 Ohms respectively. The brush contactdrop is 2 Volts per brush.(B)-ndicate whether the following statements are true or false and correct the faise statements. -When a series d.c. motor is operate without load, the armature will not run. The strength of magnetic field in d.c. shunt generator can be varied by varying the polarity of the field poles The main disadvantage of series generators is Output voltage varies as the Toad varies There is no output from the transformer under short-circuit conditions2- A 4-pole, wave-wound d.c. shunt generator has an armature winding consisting of 300 turns each of 0.0020. The armature resistance is a) 0.152 b)0.62 c) 0.30 d) none of above