For what purpose was the asynchronous motor idle test performed? Please explain.

Q: A load is attached to a synchronous motor. What will happen when the load is changed on this motor?…

A: A load is attached to a synchronous motor. What will happen when the load is changed on this motor?…

Q: 3. What is understood by the rotor standstill voltage (U20)? 4. What effect do the starting…

A: Induction motor working Principle When an ac supply is connected to a stator it creates a rotating…

Q: What is the factor that enables the synchronous motor to operate at different electrical load…

A: Synchronous motor: The rotor of the synchronous motor rotates normally at the speed of the revolving…

Q: 2. A 50-kW, 440-V, 50-Hz, six-pole induction motor has a slip of 6 percent when operating at…

A: Dear,as per company guidelines we can answer only 3 sub-parts at a time, kindly post other sub-parts…

Q: Your Answers may be presented through Discussions, Drawings/Figures/Diagrams, Reference to NEC/PEC…

A:

Q: 1.) Variable frequency drive (VFD) is an electrical equipment used to control__________ of AC…

A: To select correct answers from given options

Q: A three-phase motor can be made to run backwards by A. connecting a resistor in series with the…

A:

Q: 14-Which is the most effective and currently used method in asynchronous motor speed control…

A: In this question we need to choose a correct option

Q: a) A relay is an electromagnetic switch that is used to turn on and tum off a circuit by a low power…

A: As per our policy, I can solve one question at a time. a) Contacts are the switch's conducting…

Q: When field voltage is controlled to provide a method of variable speed control, the system is using…

A: This question belongs to electrical machine . It is based on the concept of speed controlling…

Q: With the aid of power-load angle curves explain in detail the following: i. an electronic…

A: The curve which is formed between the power axis and load angle is known as power-load angle curve.…

Q: In Induction motor, the load test has done. The result get is like the table below. 1) Explain why…

A: An induction motor is a commonly used AC electric motor in which the electric current necessary to…

Q: Is the active power supplied to a motor affected by placing of capacitors in parallel with the…

A: The electrical machines can be generators or motors. They work on the principle of…

Q: For what purpose is the short circuit test performed in asynchronous motor? Please explain.

A: Need to explain about short circuit test in asynchronous motor

Q: Why there is no mechanical vibration present in solid state relay? Compare the working of…

A: Solid state relay don't have any moving part inside it. In most of the case moving part cause…

Q: Q5. Describe the following to protect and control the motors: (i) Using circuit diagram and the…

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

Q: Explain briefly in one(1) sentence what is the function of the squirrel cage winding in the…

A: The synchronous motor is one that rotates at constant speed. The excitation system is placed on the…

Q: Using the time limit overload or the dashpot overload relay, how are the following achieved:…

A: Using the time limit overload or the dashpot overload relay, the tripping current adjustments are…

Q: 1) Does the excitation affect the synchronous motor speed? 2) Does the excitation affect the power…

A: Electrical machines can be either generator or motors. They can be either Ac machines or DC…

Q: 2. What is meant by maximum torque angle vis a vis a directional relay

A: Given that  What is meant by maximum torque angle vis a vis a directional relay

Q: K(s+2) s+3 a-) G.(s)G(s) = %3D *+1 +5s+12 b-) G.(s)G(s) = *,(s+ 2) _ s+3 s+1 +12s R Gc Gp O a. K=99…

A: (a) The steady error is, ess=0.01 Gc(s)G(s)=K(s+2)s+1s+3s2+5s+12 For a unit step input, the…

Q: motor slip

A: Asynchronous Motor (Induction motor) Induction motor speed varies with the change in load. And the…

Q: Explain briefly in one(1) sentence what is the function of the squirrel cage winding in the…

A: Given: squirrel cage winding

Q: One type of failure that's more common with 200 HP motors than with 10 HP motors is A. rotor bar…

A:

Q: 1.(Im) does the excitation circuit current change as motor current changes? explain the reasons

A: Solution: Whether the excitation circuit current changes with the change in the motor current…

Q: What is synchro? Explain how it is controlled with respect to control system

A: Synchro is a type of electrical transducer which transforms the angular position of the shaft to…

Synchronous Motor

The synchronous motor is an AC electric type motor where at a steady-state the shaft rotation is synchronized with the supply current variable-frequency. To an integral number of AC cycles, the rotation period is exactly equal. The stator of the motor in the synchronous motor contains multi-phase AC electromagnets due to which a magnetic field is created that rotates in time with the oscillation of the line current. The rotor contains a permanent magnet and the rotor rotates in synchronization with the stator field at the same rate and provides the second synchronized magnetic field which is rotating in nature as a result. When the synchronous motor is supplied with independently excited multi-phase AC electromagnets on both the rotor and the stator, it is termed as a doubly-fed machine. The most widely used AC-type motors are the synchronous AC motor and the induction AC motors.