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    EXPERIMENTS

    IN

    ENERGYCONVERSION

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    Experiment No. 1Starting and speed control of a Shunt Motor

    Reverse and Forward

    Experiment No. 2AC Series Motor Reverse and Forward

    Experiment No. 3Compound Motor

    Experiment No. 4Capacitor-Run Motor

    Experiment No. 5Single phase Induction Motor

    Experiment No. 6Capacitor-Start motor

    Reverse

    Experiment No. 7CAPACITOR START DUAL VOLTAGE 230/115, SINGLE PHASE

    HIGH VOLTAGE CONNECTION

    FORWARD

    Experiment No. 8Capacitor-Start Dual Voltage 230/115 Single Phase

    High Voltage Connection

    Reverse

    Experiment No. 9Capacitor-Start Dual voltage 230/115, single phase

    Low Voltage Connection

    Forward

    Experiment No. 10Capacitor-Start Dual voltage 230/115, single phase

    Low Voltage Connection

    Reverse

    Experiment No. 11Three Phase Squirrel cage Induction Motor

    Connecting six terminal leads 380/230 V, three phase motor

    High Voltage connection

    WYE

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    Experiment No. 12Connecting nine terminal leads 460/230 V, three phase motor

    High Voltage Connection

    Delta

    Experiment No. 13Connecting nine terminal 460/230 V, three phase motor

    Series Wye

    STAR

    Experiment No. 14

    Load characteristics of Series, Shunt and Compound motors

    Experiment No. 15DC generator

    Experiment No. 16Parallel operation of separately excited generators

    Experiment No. 17Synchronous Motors

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    Experiment No. 1

    Starting and speed control of a Shunt Motor

    Reverse and Forward

    Objectives:

    To be able to familiarize the parts of a Shunt Motor.

    To be able to install and start and control the speed of Shunt Motor in the forward

    and reverse direction.

    Materials:

    DC Shunt Motor

    DC milliammeter

    DC power supplyFuses

    swithces

    Connecting wires

    Clamp Ammeter

    HV DC VOLTAGE supply

    Multi-tester

    Tachometer

    Diagram

    Procedure:

    Determine the parts of the Shunt Motor

    Measure the different resistances of the motor using the ohmmeter.

    Record on the Table 1.

    Determine the revolution of the motor using the tachometer.

    Determine the name plate data on the motor.

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    Table 1:

    Shunt Field resistance, Revolution per

    minute, RPM

    Total resistance, Rt Supply Voltage

    Starting Current Current

    Running Current Power

    Poles

    Computations:

    Show your formula and solution

    Using the values for Table 1 determine your frequency and power:

    Question:

    What are the behavior of a shunt generator under load?

    What are the safety precautions when handling motors?

    What determines the direction of the motor?

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    Observations:

    Conclusions:

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    Experiment No. 2

    AC Series Motor

    Reverse and Forward

    Objectives:

    To be able to familiarize the parts of a Series Motor.

    To be able to install and operate the Series Motor in the forward and reverse

    direction.

    Materials:

    AC Series Motor

    Variac

    Connecting wiresClamp Ammeter

    Multi-tester

    Tachometer

    Diagram

    Forward Reverse

    A

    2

    1

    s er i es f i el d

    A

    2

    1

    ser

    i es f i el d

    SERIES MOTOR

    Procedure:

    Determine the parts of the Series Motor

    Measure the different resistances of the motor using the ohmmeter.Record on the Table 1.

    Determine the revolution of the motor using the tachometer.

    Determine the name plate data on the motor.

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    Table 1:

    Series Field resistance, Revolution per

    minute, RPM

    Total resistance, Rt Supply Voltage

    Starting Current Current

    Running Current Power

    Poles Armature

    Resistance

    Computations:

    Show your formula and solution

    Using the values for table 1 determine your frequency and power:

    Question:

    What are the behavior of a series generator under load?

    Observations:

    Conclusions:

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    Experiment No. 3

    Compound Motor

    Objectives:

    To be able to familiarize the parts of a Compound Motor.

    To be able to install and operate the Compound Motor.

    Materials:

    Variac

    Compound Motor

    Electrolytic capacitors

    Connecting wires

    Clamp Ammeter

    Multi-testerTachometer

    Diagram.

    A

    2

    1

    A

    2

    1

    ser i es

    f i el d ser i es f i el d

    Shunt fieldshunt field

    COMPOUND MOTOR

    Procedure:

    Determine the parts of the Compound Motor

    Measure the different resistances of the motor using the ohmmeter.

    Record on the Table 1.

    Determine the revolution of the motor using the tachometer.

    Determine the name plate data on the motor.

    Table 1:

    Shunt Field resistance, Revolution per

    minute, RPM

    Total resistance, Rt Supply Voltage

    Starting Current Current

    Running Current Power

    Poles Armature

    Resistance

    Series Field resistance

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    Computations:

    Show your formula and solution

    Using the values for table 1 determine your frequency and power:

    Question:

    What are the behavior of a compound generator under load?

    Observations:

    Conclusions:

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    Experiment No. 4

    Capacitor-Run Motor

    Objectives:

    To be able to familiarize the parts of a CAPACITOR-RUN MOTOR.

    To be able to install and operate the CAPACITOR-RUN MOTOR.

    Materials:

    Variac

    Capacitor Run Motor

    Electrolytic capacitors

    Connecting wires

    Clamp AmmeterMulti-tester

    Tachometer

    Diagram.

    SWRW

    Electrolytic Capacitor

    2

    Capacitor Run

    Procedure:

    Determine the parts of the Capacitor Run Motor.

    Measure the different resistances of the motor using the ohmmeter.Record on the Table 1.

    Determine the revolution of the motor using the tachometer.

    Determine the name plate data on the motor.

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    Table 1:

    Running winding

    resistance, RW

    Revolution per

    minute, RPM

    Total resistance, Rt Supply Voltage

    Starting Current Current

    Running Current Power

    Poles Starting winding

    S.W.

    Computations:

    Show your formula and solution

    Using the values for table 1 determine your frequency and power:

    Question

    1. What are the characteristics of a capacitor run motor?

    Observations:

    Conclusion:

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    Experiment No. 5

    Single Phase Induction Motor

    Objectives:

    To be able to familiarize the parts of a Induction Motor.

    To be able to install and operate the Induction Motor.

    Materials:

    Variac

    Inductions Motor

    Electrolytic capacitors

    Connecting wires

    Clamp Ammeter

    Multi-testerTachometer

    Fuses

    Switches

    Tachometer

    Wattmeter, single phase

    Diagram.

    SWRW

    Electrolytic Capacitor

    2

    C.S.

    Induction Motor

    FORWARD

    Procedure:

    Determine the parts of the Induction Motor.

    Measure the different resistances of the motor using the ohmmeter.

    Record on the Table 1.

    Determine the revolution of the motor using the tachometer.

    Determine the name plate data on the motor.

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    Table 1:

    Running windingresistance, RW

    Revolution perminute, RPM

    Total resistance, Rt Supply Voltage

    Starting Current Current

    Running Current Power

    Poles Armature

    resistance

    Centrifugal Switch

    Resistance C.S.

    Starting winding

    resistance, S.W.

    Computations:

    Show your formula and solution

    Using the values for table 1 determine your frequency and power:

    QUESTIONS:

    Typical applications of Capacitor start motor.

    What is an induction motor?

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    Observations:

    Conclusions:

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    Experiment No. 6

    Capacitor-Start Induction motor

    Reverse

    Objectives:

    To be able to familiarize the parts of a CAPACITOR-START INDUCTION

    MOTOR.

    To be able to install and operate the CAPACITOR-START INDUCTION MOTOR.

    Materials:

    Variac

    Capacitor-Start induction Motor

    Electrolytic capacitors

    Connecting wiresClamp Ammeter

    Multi-tester

    Tachometer

    Diagram.

    SWRW

    Electrolytic Capacitor

    2

    C.S.

    T1

    CAPACITOR START

    REVERSE

    Procedure:

    Determine the parts of the Capacitor Start Motor.

    Measure the different resistances of the motor using the ohmmeter.

    Record on the Table 1.

    Determine the revolution of the motor using the tachometer.

    Determine the name plate data on the motor.

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    Observations:

    Conclusions:

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    Experiment No. 7

    CAPACITOR START DUAL VOLTAGE 230/115, SINGLE PHASE

    HIGH VOLTAGE CONNECTION

    FORWARD

    Objectives:

    To be able to familiarize the parts of a CAPACITOR START DUAL VOLTAGE

    230/115, SINGLE PHASE.

    To be able to install and operate the CAPACITOR START DUAL VOLTAGE

    230/115, SINGLE PHASE.

    Materials:

    Variac

    CAPACITOR START DUAL VOLTAGE 230/115, SINGLE PHASEElectrolytic capacitors

    Connecting wires

    Clamp Ammeter

    Multi-tester

    Tachometer

    Diagram.

    SW

    Electrolytic Capacitor

    C.S.

    RW1

    RW2

    CAPACITOR START DUAL VOLTAGE 230/115, SINGLE PHASEHIGH VOLTAGE CONNECTION

    FORWARD

    Procedure:

    Determine the parts of the CAPACITOR START DUAL VOLTAGE 230/115,

    SINGLE PHASE.

    Measure the different resistances of the motor using the ohmmeter.

    Record on the Table 1.

    Determine the revolution of the motor using the tachometer.

    Determine the name plate data on the motor.

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    Table 1:

    Running winding

    resistance, RW1

    Revolution per

    minute, RPM

    Total resistance, Rt Supply Voltage

    Starting Current Current

    Running Current Power

    Poles

    Centrifugal Switch

    resistance C.S.

    Running winding

    Resistance, RW2

    Computations:

    Show your formula and solution

    Using the values for table 1 determine your frequency and power.

    Observations:

    Conclusion:

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    Experiment No. 8

    Capacitor-Start Dual Voltage 230/115 Single Phase

    High Voltage Connection

    Reverse

    Objectives:

    To be able to familiarize the parts of a Capacitor-Start Dual Voltage 230/115 Single

    phase .

    To be able to install and operate the Capacitor-Start Dual Voltage 230/115 Single

    Phase.

    Materials:

    Variac

    CAPACITOR START DUAL VOLTAGE 230/115, SINGLE PHASE

    Electrolytic capacitorsConnecting wires

    Clamp Ammeter

    Multi-tester

    Tachometer

    Diagram.

    SW

    Electrolytic Capacitor

    C.S.

    RW1

    RW2

    Capacitor-Start Dual Voltage 230/115 Single Phase

    High Voltage Connection

    Reverse

    Procedure:

    Determine the parts of the CAPACITOR START DUAL VOLTAGE 230/115,SINGLE PHASE.

    Measure the different resistances of the motor using the ohmmeter.

    Record on the Table 1.

    Determine the revolution of the motor using the tachometer.

    Determine the name plate data on the motor.

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    Table 1:

    Running winding

    resistance, RW1

    Revolution per

    minute, RPM

    Total resistance, Rt Supply Voltage

    Starting Current Current

    Running Current Power

    Poles

    Centrifugal Switch

    resistance C.S.

    Running winding

    Resistance, RW2

    Starting winding

    resistance, S.W.

    Computations:Show your formula and solution

    Using the values for table 1 determine your frequency and power:

    Observations:

    Conclusion:

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    Experiment No. 9

    Capacitor-Start Dual voltage 230/115, single phase

    Low Voltage Connection

    Forward

    Objectives:

    To be able to familiarize the parts of a Capacitor-Start Dual voltage 230/115, single

    phase.

    To be able to install and operate the Capacitor-Start Dual voltage 230/115, single

    phase.

    Materials:

    Variac

    Capacitor-Start Dual voltage 230/115, single phaseElectrolytic capacitors

    Connecting wires

    Clamp Ammeter

    Multi-tester

    Tachometer

    Diagram.

    SW

    Electrolytic Capacitor

    C.S.

    RW1

    RW2

    8

    7

    5

    Capacitor-Start Dual voltage 230/115, single phaseLow Voltage Connection

    Forward

    Procedure:

    Determine the parts of the Capacitor-Start Dual voltage 230/115, single phase.

    Measure the different resistances of the motor using the ohmmeter.

    Record on the Table 1.Determine the revolution of the motor using the tachometer.

    Determine the name plate data on the motor.

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    Table 1:

    Running winding

    resistance, RW1

    Revolution per

    minute, RPMTotal resistance, Rt

    Starting Current Current

    Running Current Power

    Poles Supply Voltage

    Centrifugal Switch

    resistance C.S.

    Running winding

    Resistance, RW2

    Computations:Show your formula and solution

    Using the values for table 1 determine your frequency and power:

    Question

    What are the difference between high voltage and low voltage connections?

    Observations:

    Conclusion:

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    Experiment No. 10

    Capacitor-Start Dual voltage 230/115, single phase

    Low Voltage Connection

    Reverse

    Objectives:

    To be able to familiarize the parts of a Capacitor-Start Dual voltage 230/115, single

    phase.

    To be able to install and operate the Capacitor-Start Dual voltage 230/115, single

    phase.

    Materials:

    Variac

    Capacitor-Start Dual voltage 230/115, single phase.Electrolytic capacitors

    Connecting wires

    Clamp Ammeter

    Multi-tester

    Tachometer

    Diagram.

    SW

    Electrolytic Capacitor

    C.S.

    RW1

    RW2

    Capacitor-Start Dual voltage 230/115, single phase

    Low Voltage Connection

    Reverse

    Procedure:

    Determine the parts of the Capacitor-Start Dual voltage 230/115, single phase.

    Measure the different resistances of the motor using the ohmmeter.Record on the Table 1.

    Determine the revolution of the motor using the tachometer.

    Determine the name plate data on the motor.

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    Table 1:

    Running winding

    resistance, RW1

    Revolution per

    minute, RPM

    Total resistance, Rt Supply Voltage

    Starting Current Current

    Running Current Power

    Poles Supply Voltage

    Centrifugal Switch

    resistance C.S.

    Running winding

    Resistance, RW2

    Computations:

    Show your formula and solution

    Using the values for Table 1 determine your frequency and power:

    Observations:

    Conclusion:

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    Experiment No. 11

    Three Phase Squirrel cage Induction Motor

    Objectives:

    To be able to familiarize the parts of Three Phase Squirrel cage Induction Motor.To obtain the performance characteristics of a three-phase squirrel cage induction

    motor.

    DISCUSSION

    Three-phase induction motors are by far the most widely used in industry. They

    constitute about 80% of the total number of motors used in industry. Three-phase

    induction motors are popular because they are more economical, last longer, and

    require

    less maintenance than other types of motors. The stator is composed of laminations

    of

    high-grade sheet steel. A three-phase winding is put in slots cut on the inner surface

    ofthe stator frame. The stator windings can be either star (wye) - or delta-connected.

    The

    simplest and most widely-used rotor for induction motors is the squirrel cage rotor.

    A

    squirrel cage rotor consists of bare aluminum bars that are connected at their

    terminals to

    shorted end rings. The rotor bars are not parallel to the rotor axis but are set at a

    slight

    skew. This reduces mechanical vibrations, so the motor is less noisy.

    Materials:

    AC Ammeter

    AC voltmeter

    Connecting wires

    Dynamometer

    Fuses

    Squirrel Cage Induction motor

    3 Phase Supply

    Switches

    Tachometer

    Wattmeter, 1 phase

    Diagram.

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    Wye Connection

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    Procedure:

    Determine the parts of the six terminal leads 380/230 V, three phase motor.Measure the different resistances of the motor using the ohmmeter.

    Record on the Table 1.

    Determine the revolution of the motor using the tachometer.

    Determine the name plate data on the motor.

    Table 1:

    Individual resistance, Revolution per

    minute, RPM

    Total resistance, Rt Supply Voltage

    Phase Voltage Current

    Line Voltage Power

    Line Current Poles

    Computations:

    Show your formula and solutionUsing the values for Table 1 determine your frequency and power:

    Question:

    What are the difference between three phase motors and single phase motors?

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    Observation:

    Conclusion:

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    Experiment No. 12

    Connecting nine terminal leads 460/230 V, three phase motor

    High Voltage Connection

    Delta

    Objectives:

    To be able to familiarize the parts of a nine terminal leads 460/230 V, three phase

    motor..

    To be able to install and operate the nine terminal leads 460/230 V, three phase

    motor.

    Materials:

    Nine terminal leads 460/230 V, three phase motorElectrolytic capacitors

    Connecting wires

    Clamp Ammeter

    Multi-tester

    Tachometer

    Diagram.

    Nine terminal leads 460/230 V, three phase motor

    High Voltage Connection

    Delta

    Procedure:

    Determine the parts of the nine terminal leads 460/230 V, three phase motor.

    Measure the different resistances of the motor using the ohmmeter.Record on the Table 1.

    Determine the revolution of the motor using the tachometer.

    Determine the name plate data on the motor.

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    Table 1:

    Individual resistance, Revolution per

    minute, RPMTotal resistance, Rt Supply Voltage

    Phase Voltage Current

    Line Voltage Power

    Line Current

    Computations:

    Show your formula and solution

    Using the values for Table 1 determine your frequency and power:

    Question:

    What is the difference between 6 terminal and nine terminal leads motor?

    Observation:

    Conclusion:

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    Experiment No. 13

    Connecting nine terminal 460/230 V, three phase motor

    Series Wye

    STARObjectives:

    To be able to familiarize the parts of a nine terminal 460/230 V, three phase motor.

    To be able to install and operate the nine terminal 460/230 V, three phase motor.

    Materials:

    Nine terminal 460/230 V, three phase motor

    Connecting wires

    Clamp Ammeter

    Multi-testerTachometer

    Diagram.

    1211

    Nine terminal 460/230 V, three phase motor

    Series Wye

    STAR

    Procedure:

    Determine the parts of the nine terminal 460/230 V, three phase motor.

    Measure the different resistances of the motor using the ohmmeter.

    Record on the Table 1.

    Determine the revolution of the motor using the tachometer.

    Determine the name plate data on the motor.

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    Table 1:

    Individual resistance, Revolution per

    minute, RPM

    Total resistance, Rt Supply Voltage

    Phase Voltage Current

    Line Voltage Power

    Line Current

    Computations:

    Show your formula and solution

    Using the values for Table 1 determine your frequency and power:

    Observation:

    Conclusion:

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    Experiment No. 14Load characteristics

    of Series, Shunt and Compound motors

    Objectives:

    To be able to connect a series, shunt and compound motors in a controlled setting,

    observe what will happen with no load.To be able to observe the differences between

    the types of motors.Describe characteristics of the three types of DC motors: shunt,series and compound

    Materials:

    DC Power supply

    DC series motor

    DC shunt motor

    DC compound motor

    Connecting wires

    Fuses

    Series field rheostat

    Shunt field rheostat

    Switches

    TachometerMultitester

    Diagram

    Figure 13. DC Series Motor: Schematic and Wiring Diagram

    Figure 14. DC Shunt Motor: Schematic and Wiring Diagram

    Figure 15. DC Compound Motor: Schematic and Wiring Diagram

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    Procedure:

    Connect the motor to the tachometer.

    Observe the difference between the three motors having the same supply voltage.

    Determine the revolution of the motor using the tachometer.

    Table 1:Motors SUPPLY

    VOLTAGE

    LOAD

    RESISTANCE

    RPM

    Series Motor

    Shunt Motor

    Compound Motor

    Motors SUPPLY

    VOLTAGE

    LOAD

    RESISTANCE

    RPM

    Series Motor

    Shunt Motor

    Compound Motor

    Motors SUPPLY

    VOLTAGE

    LOAD

    RESISTANCE

    RPM

    Series Motor

    Shunt Motor

    Compound Motor

    Computations:

    Show your formula and solution

    Using the values for table 1 determine your frequency and power:

    Question:What are the behavior of a series motor under load?

    What are the behavior of a shunt motor under load?

    What are the behavior of a compound motor under load?

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    Observations:

    Conclusions:

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    Table 1:

    Field resistance Revolution per

    minute, RPMArmature resistance Supply Voltage

    Output voltage Output Current

    Supply Current Power

    Computations:

    Show your formula and solution

    Using the values for Table 1 determine your frequency and power:

    Question:

    What determines the speed of a DC generator?

    What is the difference between AC and DC generator?

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    Observations:

    Conclusions:

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    Experiment No. 16Parallel operation of separately excited generators

    Objectives:

    To be able to familiarize the parts of a separately excited generators.

    To be able to examine a separately excited generators and observe how it works.

    To be able to identify the different windings.

    Materials:

    DC Generator

    DC milliammeter

    DC generator with shunt windings

    FusesLamp loads

    Connecting wires

    Clamp Ammeter

    HV DC VOLTAGE supply

    Multi-tester

    Tachometer

    Switches

    Diagram

    Separately excited Generator

    Procedure:

    Determine the parts of the Separately excited Generator

    Measure the different resistances of the Separately excited Generators armature

    and field windings using the ohmmeter.

    Record on the Table 1.

    Determine the output voltageusing the multitester.

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    Table 1:

    Field resistance Revolution per

    minute, RPM

    Armature resistance Supply Voltage

    Output voltage Output Current

    Supply Current Power

    Computations:

    Show your formula and solution

    Using the values for table 1 determine your frequency and power:

    Question:

    What determines the speed of a separately excited generator?

    Observations:

    Conclusions:

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    Experiment No. 17

    Synchronous Motor

    Objectives:

    To be able to familiarize the parts of a Induction Motor.

    To be able to install and operate the Induction Motor.

    Materials:

    Variac

    Synchronous Motor

    Electrolytic capacitors

    Connecting wires

    Clamp Ammeter

    Multi-testerTachometer

    Fuses

    Switches

    Tachometer

    Wattmeter, single phase

    Diagram.

    Synchronous Motor

    Procedure:

    Determine the parts of the Induction Motor.

    Measure the different resistances of the motor using the ohmmeter.Record on the Table 1.

    Determine the revolution of the motor using the tachometer.

    Determine the name plate data on the motor.

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    Table 1:

    Field resistance Revolution per

    minute, RPMArmature resistance Supply Voltage

    Output voltage Output Current

    Supply Current Power

    Computations:

    Show your formula and solution

    Using the values for Table 1 determine your frequency and power:

    QUESTION:

    What is the advantage of Synchronous motors?

    What is the difference between synchronous and asynchronous motors?

    Types of Synchronous motors?

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    Observations:

    Conclusions: