6. A 4-pole lap winding motor with 16 slots, 42 conductors per slot, 480 V runs at 1,800 rpm. Find the flux produced per pole a. 11.9 mWb b. 47.6 mWb c. 35.7 mWb d. 23.8 mWb

Q: A three phase 20 pole star connected alternator has 140 slots on the armature. Each slot contains…

A: The solution can be achieved as follows.

Q: 4. A three-phase A-connected six-pole winding is installed in 36 slots on a stator. There are 150…

A: Introduction A three-phase delta-connected system is a type of electrical power distribution…

Q: A d.c. generator running at 25 rev/s, generates an e.m.f. of 150 V. Determine the percent- age…

A: Given data, Speed,  N1=25 rev/s = 25×60=1500 RPMN2=20 rev/s=20×60 = 1200 RPM EMF of generator E1=150…

Q: A dc 4 pole lap wound generator is running at 10o00 rpm having 1200 conductors and flux density is…

A: Given  Pole P=4 lap A= P=4 N=1000 rpm Z=1200  φ= 10mwb

Q: Iron losses in a DC machine are independent of variations in

A: The explanation is as follows.

Q: Check all the correct statements on AC machines (induction and synchronous) below. O The current…

A:

Q: I revolution of a 6 pole synchronous machine is degrees electrical a. 720 O b. 1000 c. 3600 d. 1080

A:

Q: A 6 pole DC wave wound generator has 21 armature conductors with flux per pole is 29 mWb and the…

A: emf indued E = Flux×speed×no.of conductors60×no. of polesno. of parallel paths Given Flux=29 m Wb…

Q: Stationary part in a DC machine is called A5 a) rotor b) commutator c) stator d) none of these

A: In this question we will write about stationary part in a DC machine....

Q: A 3-phase, 16 pole alternator has a wye connected armature winding with 144 slots, 10 conductors per…

A:

Q: In a three-phase star connected alternator it is necessary to generate 7200 line voltage at…

A:

Q: There are 72 slots in a 3-phase, 8-pole, 50 Hz, star connected alternator. There are 2 conductors in…

A:

Q: A three phase 4 pole star connected alternator has 120 slots on the armature. Each slot contains 8…

A: 3 phase star connected alternator No of slot =120 No of conductor per slot = 8 2 conductor make a…

Q: The hysteresis loop occurs because: Select one: a. The machine is full-loaded b. some eddy current…

A: consider the given circuit;

Q: Example 1: The stator of a 30 , 2-poles machine has 18 slots and a double-layer winding. The coils…

A: Machines comprise 3 phases, 2 poles having 18 slots with double layer winding. so here  The phase is…

Q: In a certain magnetic circuit, the core is represented two reluctances as shown below. Assume a…

A: The magnetic circuit diagram is shown below, Number of turns, N=640 turns.Current, I=2.2 A.

Q: 8-pole 3-phase star-connected alternator with 144 grooves in its armature rotates at 900 rpm. There…

A: Given values are - P=8Phase=3GroovesSlotsS=144NS=900rpmConductors per groovesSlots=12Flux per…

Q: There are 180 double wound slots in a 3-phase, 50 Hz., 500 rpm, star connected alternator. Coil span…

A:

Q: A single-phase 111-V, 50-Hz supply is connected to a coil with 200 turns of a coil-core assembly as…

A: Given, Single phase transformer. Single phase supply voltage, e=111 V. Frequency, f=50 Hz. Number…

Q: A 3-phase, 60 Hz, Y-connected, AC generator has a stator with 60 slots, each slot contains 12…

A: AC generators are used to generate electrical energy. It converts mechanical energy in the shaft to…

Q: A 4-pole DC generator runs at 650 rpm and generates an EMF of 200 V. The armature is wave wound and…

A: Given a DC generator with, Rated emf, E = 200 V Total number of pole, P = 4 Speed, N = 650 rpm Wave…

Q: The table below shows some performance parameters of a certain power transformer. Full-load voltage…

A:

Q: A four-pole dc generator has a wave-wound armature containing 48 slots with eight conductors per…

A:

Q: Question: A 4 Pole DC Generator Is Wounded Lap. It Rotates At 50Orpm To Be Able... A 4 pole DC…

A:

Q: A 25cps single-phase, 8-pole, alternator with 725 mWb flux per pole has 288 slots. The machine coil…

A:

Q: A 3-phase, 6-pole, Y-connected, AC generator has a stator with 48 slots, each slot contains 60…

A: In this question we will find synchronous generator electrical and mechanical frequency in rad per…

Q: A 6 pole DC lap wound generator has 41 armature conductors with flux per pole is 23 mWb and the…

A:

Q: Explain unbiased p-n junction by drawing figures.

A: Below is the solution

Q: winding

A:

Q: Calculate the phase and line voltages of three phase star-connected 4 pole small alternator having a…

A: Given data, The total flux is 0.30 Wb. The relative speed is 1500 rpm The number of pole is 4. The…

Q: The hysteresis loss of a dc machine is 300 W when the flux per pole is 30 mWb and the machine is…

A:

Q: Determine the flux per pole for 6 pole dc machine having 240 wave connected conductors, which…

A: Given DC generator  Number of poles P=6Number of conductors Z=240wave connected winding so,Number of…

Q: A four pole, 1200 rpm DC lap wound generator has 1520 conductors. If the flux per poles is 0.01 Wb.…

A: Given: DC lap wound generator having P=4N=1200Z=1520ϕ=0.01 Wb

Q: 4. When driven at 1000 r.p.m. with a flux per pole of 0.02 Wb, a d.c. generator has an e.m.f. of 200…

A: We need to find out induced emf for given generator

Q: Problem 1 Stator of 3-phase machine is excited by a current source as follows: I, lags Ia by 120…

A:

Q: 57. One of those listed is not a type of de generator winding A drum D. lap B progressive C. gramme…

A: 1)  The correct answer is magnetic starter. Explanation: It is a device originated to supply power…

Q: A 4-pole DC generator runs at 650 rpm and generates an EMF of 200 V. The armature is wave wound and…

A: Given data, Number of poles P = 4 Speed of motor N = 650 rpm EMF E = 200 V Wave winding A =2 Number…

Q: In DC machines the number of parallel paths for a wave winding ger Select one: O a. Three h Two

A: There are two type of winding in DC machine . 1. Lap winding 2. Wave winding.

Winding and Constructions

Alternating Current (AC) winding is generally of the 3-phase type due to the inherent advantages of the 3-phase machine. Armature coils must be connected to the yield balance (equivalent in magnitude and 2/3 of the series phase difference of the rod) 3-phase electromotive forces (emf). The armature should be divided into step-bands to start with slots around the perimeter.In the construction of AC machines, the frame is used as an external protective shield to protect it from environmental conditions. The frame also serves as the outer perimeter, allowing the interior to be easily placed. The static state section of the devices is the stator winding attached stator.