If you hook up a motor, what are the chances that it will be wired for the correct rotation the first time?

Q: 4- A 100kW, belt driven shunt generator running at 300rpm on 220V, bus bars continue to run as a…

A: To calculate speed

Q: What is the motor used for pumping water in domestic application? Why?

A: Depending on the size of pump, there can be either three phase induction motor or single phase…

Q: If generator armature current is 2A, the motor armature current is 3A, Voltage is 240 V , motor…

A: In this question, motor and generator armature current and resistance is given we have to find out…

Q: Explain hysteresis. Diagrams may be useful.

A: In this question we discuss about hysteresis diagram.

Q: what are designed to protect the motor from an overload condition

A: Overload motor: A motor is connected with excessive load, draws more current, and produces…

Q: 3. What are the different ways of getting mechanical energy to run a generator?

A: Generator- A machine or a device which converts mechanical energy into electrical energy.

Q: When you turn on an electric motor, it takes longer to come up to final speed if a grinding wheel is…

A: When the value of I is larger then it is more difficult to change the state of object rotation as…

Q: For switching OFF the motor normally open push butt Select one: O True False

A: The explanation is as follows.

Q: Q2/Clearly identify which of the following items are rotating and which of them are stationary. (1)…

A: (1) Commutator segments is a rotating part. Commutator convertes  alternating emf to DC . Commutator…

Q: At standstill condition, the back emf is zero, so the motor can be safely turned ON without a…

A:

Q: If generator armature current is 2A, the motor armature current is 3A, Voltage is 240V,motor…

A: Generator current Ig = 2A Motor current Im = 3A Voltage V=240V Motor Armature resistance Ra= 4 ohm…

Q: 11. Write down a program with the procedures to rotate a motor in both directions.

A: We need to write the program with the procedures to rotate in both directions.

Q: Explain the following for a star-delta starter for a large 3 phase machine. (i) The starting…

A: The 3-phase machine is designed to work with a three-phase alternating current, the 3-phase…

Q: Determine the minimum current for conductors required to connect a motor that has a full-load…

A: Given: Full load current of motor is 46 A. To determine the minimum current for conductors required…

Q: How can you reduce the amount of voltage applied to the motor during inching?

A:

Q: An electrician inspects an electric motor that doesn't run properly. What is wrong with this motor?

A: In this question we need to inspects an electric motor that doesn't run properly. What is wrong with…

Q: What is three point starter ? What is four point starter? What is the nessecity of starter...!

A: Three point starter :  In the three-point starter, the NVC is located in series with the sector…

Q: Explain how does the current will be reduced during the starting of the motor.

A: According to question we have to explain, how does the current will be reduced during the starting…

Q: Screen. 2 € Which one of the following motors has high starting torque?

A: DC SERIES MOTOR: In a DC series motor the value of torque is directly proportional to the armature…

Q: 2-Explain the difference between a Wound and a squirrel -cage motor.

A: Given that we need to find the differences between wound and squirrel cage type induction motor. Do…

Q: the blocked rotor test is performed on a wound rotor motor and if the rotor  winding is kept open,…

A: Always remember , the current flows through a close path. When the rotor winding are open i.e., no…

Q: Differentiate a "Generator" from a “Motor" in terms of principle of operation. please answer clearly…

A: The answer as given below:

Q: A DC shunt motor is connected to a three-point starter. What would happen if (i) the starter handle…

A: (i) The armature current of the DC machine is meant to grow slowly as the machine slowly builds…

Q: Technician A says when testing the voltage output, if the charging voltage is too high, the cause…

A: Technician A is right because testing of the output voltage is too high, the cause could be  open…

Q: Explain the effect of the generated emf of a d.c. motor and why a d.c motor starter is necessary.

A:

Q: Explain the difference between manual motor starters that provide low voltage release and those that…

A: The difference between the manual motor starters mainly depends upon the mode of Starting. Thev…

Q: If generator armature current is 2A, the motor armature current is 3A, Voltage is 240 V, motor…

A: Generator and motor armature current are given.  Armature resistance of both machine given.  Ig =…

Q: Electrical machine    What is the speed of 100kW, 230-volt, three-phase, four-pole, 60Hz…

A:

Q: What is the Basic Energy conversation in a Motor and Generator?

A: Electric motor transfers electric energy into mechanical energy with the help of electromagnetism…

Q: How many amperes does a 1-horsepower, 240-volt, single-phase motor draw?

A: 1-Horsepower = 746 Watt. Hence the power is calculated as Power=HP*746Watt Here, Power=746Watt.…

Q: 4. Explain the need, salient features and working with the help of a neat circuit diagram showing…

A: as per the guidelines, we supposed to answer one question at a time so please ask other questions…

Q: If one of the magnetic overload relays opens its contact, how can it be reset?

A: According to question we have to discuss about,  If one of the magnetic overload relays opens its…

Q: 3. What generates the rotating magnetic field on the stator?

A: The rotating magnetic field on the stator us produced by:

Q: The starter must never operate for more than sixty seconds at a time and should rest for two minutes…

A: The starter must never operate for more than sixty seconds at a time and should rest for two minutes…

Q: This term refers to the number of times a wire revolves around the armature core. turn revolution…

A: 1. turn is the number times wire revolved around the armature .  where as revolution refers to speed…

Q: Explain the construction and working of electrical linear motor with schematic diagram. Also explain…

A: A linear motor is an electric type of motor that has its stator and rotor "unrolled" thus instead of…

Q: Using the following control devices draw an electrical circuit that will manage the direction of…

A:

Q: Determine the no. of studs and resistance of the section for a D.C. series motor starter from data:…

A:

Q: Differentiate a “Generator” from a “Motor” in terms of principle of operation.

A: Generator : generator is an electrical machines which convert mechanical energy into electrical…

Q: Differentiate the sizes of manual starters

A:

Q: (c) How does the amount of heat dissipated in the motor during normal operation compare to the…

A: The given data's are, Resistance R= 8.0 ohms, Effective Voltage Given on the circuit is, V = EMF…

Q: Direct current is used in which of the following applications in the industry?

A:

Q: 1. Give detail explanation on why it is necessary to use d.c. motor starters for starting of d.c.…

A: DC motor - DC machine is not used in the present time. Day by day reduces uses in industrial purpose…

Q: What happens when the 6. holding coil gets the supply in the magnetic controller?

A: Holding coil is nothing but a separate relay coil is energized by contacts that close when a relay…

Q: A 5 horsepower, single phase motor is connected to 208 volts. What is the full load running Current…

A: The solution is given below

Q: Explain how DOL magnetic starter works step by step with diagram and pictures.

A: The DOL method which is also known as the Direct On Line starting method, It is started with rated…