A 6-pole series motor takes 40 A from the supply mains at 220 V. It has 600 lap-wound conductors. The series field resistance and armature resistance are 0.01 ohms and 0.09 ohms respectively. Flux per pole is 29 mWb. Calculate back emf (V)

Q: A D.C series motor hoists a load at 4 m/sec while taking 30 A at 300 V from D.C mains. The total…

A:

Q: What are the rotating parts on d.c machine. * brushes inter-pole commutator segments O pole shoe

A: In dc machine field winding is statinary and armature winding is rotating.

Q: Two windings were wound in the middle leg of the magnetic circuit with a relative permeability of…

A: According to guidelines we need to solve only the First 3 subparts. According to question, a) Draw…

Q: A series DC generator has an output voltage of 200 volts, an armature resistance of 0.070 and an…

A: Consider the formula for the EMF is. E=V+IR Here, R is the combined resistance of field winding and…

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

A:

Q: Which of the following is/are a part a generator's electric circuit? a) the commutator b) the…

A: The explanation is as follows.

Q: The current flows in the windings of the DC machine which causes the O Ohmic loss O Eddy current…

A: Given :    Generally DC machines are those circuits which will converts the electrical energy into…

Q: At rated voltage, a 125 kw, 300-V long shunt compound system provides power with a stray power loss…

A:

Q: ih 16 A 2-pole d.c. shunt generator has a useful flux per pole of 0.03 Wb. The armature winding…

A:

Q: Draw the developed diagram for the stator winding of a 3-ph, 2-pole 1.M. The winding is double layer…

A: Here,  The stator winding is a double layer with a full pitch coil. The number of slots is 2 per…

Q: A distance relay is capable of measuring the from the relay location up to certain distance is…

A: As per Bartleby guidelines we are supposed to solve only one question, please ask the rest again.

Q: A 2-pole d.c. shunt generator has a useful flux per pole of 0.03 Wb. The armature winding consist of…

A:

Q: A 240 V series lift motor has resistance of 0.2 ohm. At the speed of 1800 r.p.m. it takes 40 A. Find…

A:

Q: Mechanical losses represent: A. Windage losses B. None of the other choices are correct O C. Losses…

A: In this answer let us try to understand what are mechanical losses as explained below.

Q: A DC generator with an armature resistance of 0.3 ohm and a shunt winding resistance of 125 ohm…

A: For generator ,  Armature current = Load current + shunt field current  developed power = Armature…

Q: generator is 600 RPM, and on load generated voltage is 110 V. Calculate Q3) A 4 pole wave wound…

A:

Q: The terminal voltage of an alternator changes with the increase in load due to voltage drop on…

A: Given that terminal voltage in a alternator  change with respect to.load  with respect to voltage…

Q: The factors effecting the speed of dc motor are The flux p and the voltage across the armature the…

A: This is a simple problem based on dc motors specifications. In this we are given two questions ,…

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

A:

Q: The factors effecting the speed of dc motor are The flux p and the voltage across the armature The…

A: The factor affecting the speed of the dc motor is as follows; N=V-Ia RaϕN= speed of dc…

Q: 4.12 In a compound machine, the shunt field winding has 470 turns/pole, and the series field winding…

A: Given current in the series field winding is 15 A and No. of series field turns per pole is 13  and…

Q: A DC generator has eight poles, wound as lap then rewound as a wave, calculate the electrical motive…

A: In this question,  DC Generator ,  Number of pole P= 8,   Number of conductors Z= 240 Flux = 0.04wb…

Q: A 4-pole, wave of 300 turns eac

A: Generally there are two types of winding configuration is used for DC machine: Lap winding and wave…

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: Q choose the correct answer: 1-Brushless excitation system consisting of.... a- Stator field winding…

A: Given

Q: Two shunt generators are connected in parallel to supply a current of 1500A. Each machine has a…

A:

Q: The armature of a shunt generator has 0.05 ohm effective resistance. Each brush has an effective…

A: It is given that: Ra=0.05 ΩRb=2×0.01 Ω=0.02 ΩVt=100 VIL=40 A

Q: armature and shunt field resistance of a 50-kW, 220 V shunt generator is 0.026 ohm and 52 ohms…

A:

Q: Ohmic loss

A:

Q: A direct current shunt dynamo continuously supplies an ohmic load of 50 Ohm at terminal voltage Vt=…

A:

Q: 7.  A 4-pole, d.c. shunt motor has a flux per pole of 0.04 Wb and the armature is lap-wound with 720…

A:

Q: a) A sinewave is having a frequency of 100 Hz and instantaneous value of 100 Volts at 1.4 milli…

A: Given: A sine wave whose frequency 100Hz and its instantaneous value is 100V at t=1.4msec. According…

Motor Load, Torque, and Power Quality Requirement

An electric motor is a gadget that changes electrical energy into mechanical energy over to follow up on a mechanical burden. The weight set on the motor because of this mechanical movement is known as motor load. Appropriately matching the motor burden to the engine is vital to forestall harm to the engine or wasteful and unnecessary expensive activity. Engines perform such undertakings as moving a thing starting with one spot then onto the next, cutting it, changing its shape, etc. The motors might be evaluated as far as a few variables including power yield, voltage, current, and temperature. Harm to an engine might happen when it is worked under over the top engine load contrasted with its appraised limit.