Inductance smooths current Świtch opens and closes periodically v,(1) RA Vs 27 Armature Ia flows through diode while switch is open Figure 15.25

Q: Example: A 480-V, 60-Hz, A-connected, four-pole synchronous generator. This generator has a…

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Q: Consider the linear dc machine shown in Figure 15.6 on page 754. What happens to the initial force…

A: The force equation for a current carrying conductor inside a magnetic field is: Where, The magnetic…

Q: 3Electromechanics

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Q: A 230 V fed single quadrant chopper has a 40% duty cycle. A separately excited DC motor is…

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Q: Q1/Prove that the power developed by a three-phase induction motor is maximum when the equivalent…

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Q: A separately excited D.C motor is rated for a full load torque of 100Nm. For an applied voltage of…

A: In the question, A separately excited D.C motor  full load torque =100Nm. For an applied voltage…

Q: The induced torque in dc motors beyond the pole edges is Select one: O a. infinity Ob. 180 V OC. 220…

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Q: Find the speed of the induction machine in rpm, If the speed in rad/sec is 125…

A: given speed in the rad/sec = 125

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Q: A long shunt generator running at 1000 RPM supplies 20 kW at a terminal voltage of 220 V. The…

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Q: A 120V shunt motor has an armature equivalent of 0.5 ohm and field resistance of 60 ohms. At…

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Q: B/ fill in the blanks: A. The power factor of a squirrel cage induction motor is.... at light load…

A: In this question We need to fill all the blank.  All questions are related to the induction motor.…

Q: 1. A 240-V d.c. shunt motor has an armature resistance of 0.4 2 and field resistance of 110 Q. At no…

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Q: The dc series motor has a linear torque- speed characteristics. O True O False

A: The dc series motor has a inverse torque-speed characteristics.

Q: 2)The maxinium at load angles of.... 3)The primary winding of a 220/6 V, 50 Hz transformer is…

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Q: A long-shunt d.c. compound generator supplies 25A at 90V. The resistance of armature, series field…

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Q: 8) A 230 V fed single quadrant chopper has a 40% duty cycle. A separately excited DC motor is…

A: It is given that: Vs=230 VD=0.4km=0.5 VradsRa=2 ΩN=1400 rpm

Q: Discussion:- 1. What do you understand by "armature- reaction"? Discuss the effect of armature…

A: Solve the first question, unless the student has asked for a specific question to be solved, subject…

Q: A shunt-excited DC generator has Vt vs Field current data curves as shown, for a machine running at…

A: Dear student as per our guidelines we are supposed to answer only one question .kindly report the…

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Q: An 8-pole single induction motor is running at 690 rpm. What is its slip with respect to forward and…

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Q: A 3-phase induction motor has a star-connected rotor. 50 V. The rotor resistance and standstill…

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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.