C) Separately excited DC Motor of 10-HP with an armature resistance of 0.5 ohm connected directly to a 230-volt supply line. If the full-load armature current of the motor is 50 ampere and it is desired to limit the starting current to 125 percent of this value, find the starting resistance that must be added in series with the armature.

Q: A 150 V, dc shunt motor drives a constant-torque load at a speed of 1200 rpm. The armature and field…

A: Given: A 150 V, dc shunt motor drives a constant-torque load at a speed of 1200 rpm. The armature…

Q: Q/ A separately excited DC motor running at speed = 1100 rpm and has the following specifications:…

A: In this question we need to find a a speed of motor when terminal voltage of motor is increased.

Q: 250 V, d.c. shunt motor has shunt field resistance of 250 Ώ and an armature resistance of 0.25 Ώ.…

A: DC machines (Generator/ Motor) are the important parts of electrical drives. These machines are used…

Q: A 10hp, 230V, 1200 rpm DC series motor has the total armature circuit resistance Ra + Rf = 1.1Ω. The…

A:

Q: A 120V dc shunt motor runs at 600rpm when the armature current 20.7 A. if the armature resistance is…

A:

Q: A 120V dc shunt motor runs at 600rpm when the armature current 20.7 A. if the armature resistance is…

A: Evaluating the back emf of the motor:

Q: (A shnt DC motor has a fotal armature resastance value for all conditions as Ra 2a and under full…

A: For motor , internal generated voltage = terminal voltage -drop in armature resistance. Load current…

Q: A 30 hp, 240 V, 1150 rpm DC shunt motor, operating at rated conditions, has an efficiency of 88.5…

A: Given:Pout=30hp=30×746Pout=22380WV=240VoltN=1150 rpmη=88.5%Ra=0.064ΩRf=93.6Ω

Q: On the nameplate of a serial excitation DC motor, 11 kW, 240 V, 50 A, 1350 rpm values ​​are written.…

A: First we will obtain the various parameters at rated conditions, then we will obtain other…

Q: Q2 A 200 V shunt motor having armature resistance of 0.4 N and shunt field resistance of 100 N…

A:

Q: A 10kW, 250V DC shunt motor has an armature resistance of 0.5 ohms and field resistance of 200 ohms.…

A: Soln GivenIsh = 250200= 1.25Aat no luadIa0 = 3A , N0=1200 rpmEb=VT-IaRaEb0= 250-3×0.5 = 248.5 Vat…

Q: The armature of a 270V dc shunt motor has a resistance of 0.20 ohm. If the armature current is not…

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

Q: EX1/ A 4-pole, dc motor is Ped, at. 440V' and takes an armatur cuirent of 50 A The resistance of the…

A: Given DC motor withNumber of poles P=4Terminal voltage V=440 vArmature current Ia=50 AArmature…

Q: R, DC U=230 V E (M

A: Given data: Ra=3 Ω N=1850 rpm Kbϕ=0.04 Transistor on time  = 10 msec Transistor off time = 15 msec…

Q: If the voltage applied across the armature of a DC shunt motor is increased by 5% keeping its load…

A: generated emf in armature  E = flux ×speed×no. of conductors60 ×no. of polesno. of parallel paths…

Q: A 220 V self-excited shunt motor has armature and field resistances of 0.2 Ω and 220 Ω respectively.…

A: Given data : Field resistance Rsh=220Ω Armature resistance Ra=0.2Ω First speed N1=1000rpm Line…

Q: A 30 hp, 240 V, 1150 rpm DC shunt motor, operating at rated conditions, has an efficiency of 88.5…

A: Given p=30 hpV=240 VN=1150 rpmRa=0.064 ΩRf=93.6 Ω

Q: A shunt DC motor has a shunt field resistance of400  and an armature resistance of 0.2Ω . The…

A: Hello. Since you have posted question with multiple subparts and not specified which part to solve.…

Q: ONE SENTENCE ONLY. how do we maximize the value of the armature current in a shunt dc motor in the…

A: Circuit for DC shunt motor, From emf equation of DC shunt motor, the armature current equation will…

Q: 600V, DC series motor operates at 600 rpm and rated load. Armature resistance 0.1 ohm and series…

A: Write the given values in the question. V=600 VN=600 rpmRa=0.1 ΩRse=0.05 ΩIa=195 A

Q: A 100-volt shunt motor is developing 6 hp while operating at an over-all efficiency of 86%. The…

A: Given, A 100-volt shunt motor having, Output power, Pop=6 hp= 6×745.5=4473 watt Efficiency, η=…

Q: A separately excited DC motor has an armature Resistance of 1 Ω, the armature supply voltage is Va=…

A:

Q: Answer by true or false * True False - In speed control of dc shunt motor, if the armature voltage…

A:

Q: A separately excited DC motor fed through asingle phase semi- converter runs at a speed of 1200 rpm…

A: Given that  N= 1200 rpm Vs (rms)= 230 volt firing angle = 50 degree  Eb = 140 volts Ra = 3 ohm…

Q: A 20 V, DC shunt motor takes a line current of 0.5A. The resistance of shunt field winding is 2002…

A:

Q: The speed of a separately excited motor is controlled by a single-phase semiconverter in the figure…

A: Given Data: Ra = 0.221 ohm Rf = 130 ohm Kv = 0.665 V/A rad-s TL = 45

Q: A DC shunt motor is supplied by 250-volt and 15kW at rated load, if the No-load speed r.p.m and…

A: In this question we will find the efficiency , speed and torque developed for dc shukr motor....

Q: A dc shunt motor has a full-load rating of 240 volts, 1,500rpm, 20 HP, and 50 Amperes. The armature…

A:

Q: The no load speed of a 230 V separately excited dc motor is 1400 rpm. The armature resistance drop…

A: Given separately excited DC motor having, Supply voltage, V= 230 V No load speed, No= 1400 rpm…

Q: Consider a shunt DC motor with an armature resistance RA=0.2 ohm and terminal voltage VT = 160 V.…

A: Given Data: VT = 160 V Ra = 0.2 ohm Ia = 60 A N = 1517 rpm Ploss = 848 Watt

Q: A shunt DC motor is rated at 100 hp at a speed of 1800 rpm. This motor has an efficiency of 97%…

A: Given data, Rated power, P0=100 hp=74600 Wη=97% Input power is given as, Pin=P0η=746000.97=76907.22…

Q: A separately excited dc motor operating from a single phase semi-controlled converter at a speed of…

A: AC supply Voltage (Vs) = 230 V Peak value of the supply voltage (Vm) = 2 Vs = 230 2 V Back e.mf..…

Q: A 10-hp, 120-V, 1000 rpm shunt DC motor has a full load armature current of 70 A when operating at…

A: We are given that for a 100 hp dc shunt motor: Terminal Voltage (Vt) = 120 Volt; Motor speed (N01) =…

Q: Q/ A 7.46 kW, 220 V, 900 rpm shunt motor has a full-load efficiency of 88 percent, an armature…

A: According to the question, we have to find, the motor output, the armature current, and the inserted…

Q: ) Separately excited DC Motor of 10-HP with an armature onnected directly to a 230-volt supply line.…

A:

Q: A shunt DC motor with a specification of 50-hp, 250-V, 200-A has an armature resistance, RA = 0.050.…

A: We have given a shunt DC motor with a specification of 50-hp,250-V, 200-A has an armature resistance…

Q: A 10-hp, 120-V, 1000 rpm shunt DC motor has a full load armature current of 70 A when operating at…

A: We are given that for a 100 hp dc shunt motor: Terminal Voltage (Vt) = 120 Volt; Motor speed (N01) =…

Q: A 500 Volts, 10 hp shunt motor has a full-load efficiency of 85%. With the same field and armature…

A:

Q: 4 A shunt DC motor is operated at no-load at rated voltage 220 V, speed 1700 rpm and armature…

A:

Q: A 240 V, DC shunt motor draws 15 A while supplying the rated load at a speed of 100 rad/s. The…

A: Given- Voltage Vt=240 V. Line current I=15 A. Armature resistance Ra=0.5 Ω. Shunt resistance Rsh=80…

Q: Given a 10-hp 230-volt 1000-rpm series motor having rated load efficiency of 85.5%, Ra = 0.28 Ω, and…

A: It is given that: Pout=10 hp=7460 WN=1000 rpmη=85.5 %Ra=0.28 ΩRs=0.15 ΩVt=230 V

Q: A 220 V, 7 A, 1100 rpm DC shunt motor has armature and field resistance of 1.750 and 250 n…

A:

Q: A shunt DC motor is operated at no-load at rated voltage 220 V, speed 1700 rpm and armature current…

A: In this question we need to find a speed of motor when armature current is 43 A

Q: A separately excited DC motor drives a constant torque mechanical load. The armature resistance is…

A: As per the guidelines of Bartleby we supposed to answer first three sub part of questions for…

Q: The no-load speed of a 230 V separately excited de motor is 1400 rpm. The armature resistance drop…

A: Given that DC motor is separately excited and all voltage drop is zero. Given values are -…

Q: A DC shunt motor is supplied by 250-volt and 15kW at rated load, if the No-load speed is 10 r.p.m…

A:

Q: A 240V , Shunt DC - motor delivers power to a load at 1200 Rev / Min . The load Torque drawn by the…

A: We have given the following problem A 240V Shunt DC-motor delivers power to a load at 1200 Rev / Min…

Q: The schematic and torque-speed characteristics of a series wound DC motor are shown below : Field…

A: (i)  In a DC series motor the flux is proportional to the armature current, this happens because the…

Q: A 100-hp, 250- V, 400-A shunt DC motor with an armature resistance of 0.05Ω. It is desired to design…

A:

DC Series Motors

A DC motor is a type of electric motor which converts electric energy into mechanical energy. The forces that are produced by the magnetic field are what those common types of motors rely upon. Either electro-mechanical or electronic, all types of DC motors have some internal mechanism to change the current direction in part of the DC motors. As the DC motors could be powered from existing DC lighting power distribution systems, these motors were the first form of motors widely used. By changing the strength of the current in its field winding or by using a variable supply voltage, the speed of the DC motors can be controlled over a wide range.