Ql: 220V, 7 Hp DC series motor coupled to a fan, the motor draws 25 A and runs at 300 rpm at terminal voltage of 220V and no external resistance, torque of the fan is proportional to the square of the speed, if Ra-0.6 2 and Rf-0.4 2. (Neglect rotational losses): a) Determine the power supplied to the fan and torque developed by the motor. b) The speed is to be reduced to 200 rpm by inserting external resistance, determine the value of this resistance and the power delivered to the fan.

Q: Of a free excited DC motor, Excitation winding internal resistance Rf = 50 N, Supply voltage V = 100…

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Q: QI: 220V, 7 Hp DC series motor coupled to a fan, the motor draws 25 A and runs at 300 rpm at…

A: We are given that, Vs=220V ,Ia=armature current =25ARa=armature resistance=0.6ΩRf=field…

Q: A shunt-connected dc motor has RA=0.5 Ω and RF+Radj=400 Ω. For VT=200 V and no load, the motor runs…

A: Terminal voltage is given, Field resistance is given as, Armature resistance is given, Field current…

Q: 4 4poles,200V,wave connected shunt motor running at 800RPM and drawing armature cur Held current of…

A: In this question we will solve for DC motor output power ,output torque , flux, rotational…

Q: c) A 20-hp, 220V, 2000 rpm series excited de motor controls a load requiring a torque of TL = 50 N.m…

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Q: 1. A dc motor develops 55 N-m of torque at a speed of 600 rad/s when 12 volts are applied. It stalls…

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Q: A 180-V, DC motor is connected as a cumulatively-compounded DC motor. Its characteristics are given…

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Q: For separately excited dc motor, if R, is doubled with V, A unaffected. The changes in…

A: consider the given question;

Q: Consider a separately-excited DC motor with an armature resistance RA= 0.25 Q and terminal voltage…

A: In this question we need to find a speed of motor .

Q: The equivalent circuit parameters of a 230 V, single phase, 6 pole, 60-Hz induction motor are: R1 =…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Consider a armature controlled DC motor equation given by dw(t) J +bw(t)-Ki(t)=0 dt di(t)…

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Q: A separately excited DC motor with an armature resistance of 2 2 is powered by a chopper from a…

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Q: A 180-V, DC motor is connected as a cumulatively-compounded DC motor. Its characteristics are given…

A:

Q: For a 18600W 2400rpm DC motor, the following values are given: Ra=0.089 Q (value at room temperature…

A: Given: For a 18600 W, 2400 RPM DC motor, the following values are given: Ra=0.089 Ω at…

Q: Is 0.2 2 1.8 Ω I'R m IM 0.32 VS(LN) 250 2 40 Q S Given the above approximate equivalent circuit for…

A: The solution is given below

Q: A separately excited DC motor with supply voltage of 420 V, armature resistance of 0.5 Q and K=1.8…

A: Given: Supply voltage, Vi=420VKm=1.8 V-s/radDuty ratio, D=.65Armature resistance, Ra=.5Ω

Q: A 250 V, 10 hp series motor is mechanically coupled to a fan and draws 30 A and runs at 500 rpm when…

A: Given data, Terminal voltage V = 220 V Armature current Ia=30 A Armature resistance Ra=0.5 Ω Series…

Q: A 200-V, 100 A armature full-load line current, 1500 RPM, shunt DC motor is considered in this…

A: The range of speed for the following data is calculated as shown below

Q: Q5 : Induction Motors A three-phase, 230 V, 30 hp, 60 Hz, six-pole induction motor is operating with…

A: As per the guidelines of Bartley we supposed to answer first three subpart only

Q: Consider a separately-excited DC motor with an armature resistance RA= 0.25 N and terminal voltage…

A: In this question we need to find a speed of motor.

Q: Q/ A 220-V d.c. shunt motor runs at 500 r.p.m. when the armature current is 50 A. Calculate the…

A: Power developed =armature generatored EMF×armature current.  Output power=developed power-rotentinal…

Q: (c) A 50 HP, 250 V, 1200 r/min, DC shunt motor has an armature resistance of 0.06 N. Its field…

A:

Q: (c) A 50 HP, 250 V, 1200 r/min, DC shunt motor has an armature resistance of 0.06 Q. Its field…

A: A DC shunt motor The given Armature resistance Ra = 0.06 ohm Field winding resistance Rf  +Radj=…

Q: Ql: 220V, 7 Hp DC series motor coupled to a fan, the motor draws 25 A and runs at 300 rpm at…

A:

Q: A separately excited DC motor presents the following plate data: • armature voltage: V = 220 V %3D…

A: Note: We are authorized to answer three subparts at a time, since you have not mentioned which part…

Q: A 60 kW, 320 V, 50 Hz, 6 poles, 974 rpm, Y-connected squirrel cage induction motor has following…

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Q: A 111 kW, 320 V, 50 Hz, 6 poles, 974 rpm, Y-connected squirrel cage induction motor has following…

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Q: A 200-V, 100A armature full-load line current, 1500 RPM, shunt DC motor is considered in this…

A: The range of speed for the following data is determined as shown below

Q: A small permanent magnet DC motor has an armature resistance of 3.5ohm and armature voltage of…

A: Given data: Ra=3.5 ΩV=7 V

Q: Ql: 220V, 7 Hp DC series motor coupled to a fan, the motor draws 25 A and runs at 300 rpm at…

A:

Q: A 400 V, 2000 rpm DC motor draws an armature current of 10 A and a field current of 1 A at full load…

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Q: Ql: 220V, 7 Hp DC series motor coupled to a fan, the motor draws 25 A and runs at 300 rpm at…

A: For the given data power delivered and torque developed is determined as shown below

Q: A DC motor has a specification written on its nametag as shown below. Parameter Value Power 3.0 kW…

A:

Q: A 220 V, 10 kW, 900 rpm separately excited DC motor has an armature resistance Ra=0.020. When the…

A: Given a separately excited DC motor having, Terminal voltage, V=220 V Speed, N = 800 rpm Armature…

Q: Q1: 220V, 7 Hp DC series motor coupled to a fan, the motor draws 25 A and runs at 300 rpm at…

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Q: Thi Qar University Electrical Machines Electrical and Electronic Dept. 'Speed Control of DC Motors'…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Q/ Suggest a method to raise the speed of dc motor in fig (i) from 600 r.p.m to 900 r.p.m at…

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Q: Q1: 220V, 7 Hp DC series motor coupled to a fan, the motor draws 25 A and runs at 300 грm at…

A: Given data Terminal voltage, Vt=220V Armature resistance, Ra=0.6Ω  Rf=0.4Ω Armature current Ia=25A

Q: A separately excited DC motor presents the following plate data: • armature voltage: V = 220 V UB •…

A:

Q: (c) A 50 HP, 250 V, 1200 r/min, DC shunt motor has an armature resistance of 0.06 2. Its field…

A: In the question A DC shunt motor Armature resistance Ra = 0.06 ohm Field winding resistance Rf…

Q: (a) Proof that the speed of DC series motor in revolution per minute (rpm) is expressed by R. 30 N_…

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Q: For a 18600W 2400rpm DC motor, the following values are given: Ra = 0.089 Q (value at room…

A: for the DC motor, power rating =18600 W rated speed =2400 rpm armature resistance (Ra) at room…

Q: A 180-V, DC motor is connected as a cumulatively-compounded DC motor. Its characteristics are given…

A:

Q: A 180-V, DC motor is connected as a cumulatively-compounded DC motor. Its characteristics are given…

A:

Q: A 180-V, DC motor is connected as a cumulatively-compounded DC motor. Its characteristics are given…

A:

Q: QI: 220V, 7 Hp DC series motor coupled to a fan, the motor draws 25 A and runs at 300 rpm at…

A: Given, Vt=220 V Ra=0.6 Ω Rf=0.4 Ω Ia=25 A N=300 rpm where, Vt is the terminal voltage, Ra is the…

Q: Consider a separately-excited DC motor with an armature resistance RA = 0.2 N and terminal voltage…

A: Given data: VT=130 VVf=24 VRa=0.2 ΩNr=1000 rpmIa=60 A

Q: Problem 4) Consider a separately-excited DC motor with the following parameters: Trated = 10 N-m…

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Q: The speed of a 20-HP, 300V, and 1800 rpm separately excited DC motor is controlled by a three-phase…

A: a) Rated armature current, Irated=PV                                           =20…

Q: (c) A 50 HP, 250 V, 1200 r/min, DC shunt motor has an armature resistance of 0.06 Q. Its field…

A: A DC shunt motor Armature resistance Ra = 0.06 ohm Field winding resistance Rf  +Radj= 50ohm Sketch…

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.