A 25-hp 240-V 77.8-A shunt motor has an armature resistance of 0.083 N and a field-circuit resistance of 125 N. Calculate the copper losses when the motor is operating at rated conditions. If the half-load armature current of the motor in Prob. 11.1 is 40 A, determine all copper losses.

Q: A series motor runs at 700 rev/min when the voltage is 300 V and the current is 20 A. The armature…

A: Initial speed of motor N1=700 rpm. Initial terminal voltage V1=300 V. Armature current Ia=20 A.…

Q: 1200rpm, series DC motor has armature resistance of 50 and field resistance of 80. Find the…

A: From given efficiency we will calculate current drawn by the motor. input power= terminal voltage*…

Q: A three phase, 50 Hz salient-pole synchromous motor has per phase Xd of 0.8 pu and per phase Xq of…

A: The full load current of the synchronous motor is leading hence it is capacitive in nature.Consider…

Q: A 4-pole induction motor drives a load at 2500 rpm. This is to be accomplished by using an…

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: 2) A 220V shunt motor draws 10A at 1800 rpm. The armature-circuit resistance is 0.2 N, and the…

A: Back emf = terminal voltage- drop in armature. Developed  power is the product of back emf and…

Q: 5. A 7 ½ Hp, 220 V, long-shunt compound dc motor draws a line current of 3 A when running light. The…

A:

Q: 2) A 3-phase PMSM motor designed to operate at a voltage of 48V DC, running at an RPM of 1000,…

A: To calculate the current flowing into the motor, we can use the following equation:

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

A:

Q: A 220V shunt motor develops a torque of 135N.m at an armature current of 25A. The torque developed…

A: torque in shunt machine is directly proportional to product of flux and armature current. we will…

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

A:

Q: A single-phase, , 240 V, 60 Hz, 4-pole, induction motor is running at rated voltage and a rotor…

A: Choose the correct option What's air gap power?  If rated voltage 240V 60Hz , 6Pole , 1710rpm.…

Q: A permanent magnet de commutator motor has a no load speed of 6000rpm when connected to 120V supply.…

A: Given- Armature resistance = 2.5 Ω. Speed N=6000 RPM, Supply E=120 V, Torque T=0.5 N-m, Supply…

Q: A 240-V 50-Hz, 4-pole, universal motor operates at a speed of 10000 rpm on full load. The series…

A:

Q: A 50-kW 440-V 50-Hz two-pole induction motor has a slip of 6 percent when operating at full-load…

A: It is given that:To find:

Q: Q5- Adjust a fire angle for a three-phase full-wave semi-controlled converter to feed the separately…

A: Given Vph=150 Vra=0.2I0=40 AN=750 rpmkb=0.4 v/rpm

Q: a 20kw, 200v dc shunt motor has an electrical efficiency of 86% and an armature resistance of…

A: It is given that: Po/p=20 kWV=200 Vη=86 %Ra=0.25 Ω

Q: The input current to a 220v, compound motor at no load is 6 A. The shunt field circuit resistance is…

A:

Q: A 230 V D.C. shunt motor takes 32 A at full load. The back e.m.f. on full load, if the resistance of…

A: The solution can be achieved as follows.

Q: 12. The IR-compensation in frequency control of induction motors is used for: a) compensation of the…

A: It is asked about the usage of IR-compensation in frequency control of induction motors. Four…

Q: An armature controlled DC motor has the following parameters: Tf = 0.03 Nm KT = 0.15 Nm/A Imax = 2.4…

A: Ans.1 Given:Tt=0.03 NmKT=0.15 Nm/AImax=2.4 AKE=0.15 VS/radNmax=5000 rpmR=0.8…

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.