PRE – LAB HOMEWORK - FUUAST-Islamabad, Electrical Engineering · 2013-10-06 · PRE – LAB HOMEWORK FOUR SEMESTER ELECTRICAL ENGINEERING ELECTRICAL MACHINES Engr. MUHAMMAD IDREES

PRE – LAB HOMEWORK

FOUR SEMESTER

ELECTRICAL ENGINEERING

ELECTRICAL MACHINES

Engr. MUHAMMAD IDREES

ELECTRICAL MACHINES LAB

DEPARTMENT OF ELECTRICAL ENGINEERING

Federal Urdu University of Arts, Science & Technology

PRE-LAB HOMEWORK

Lab No. 2

LOAD CHARACTERISTICS OF A DC SHUNT MOTOR

What is Dc Shunt Motor?

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Write Dc Shunt Motor Formulas?

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Describe Motor Load?

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Describe CEMF?

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PRE-LAB HOMEWORK

Lab No. 3

LOAD CHARACTERISTICS OF A DC SERIES MOTOR

What is Dc Series Motor?

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Write Dc Series Motor Formulas?

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Describe Motor Load?

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Describe Motor Speed?

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PRE-LAB HOMEWORK

Lab No. 4

EFFICIENCY AND LOSSES OF A DC MOTOR

What is Input Power of a DC Motor?

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What is Output Power of a DC Motor?

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Describe the Losses of a Dc motor?

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What is the Efficiency of a DC Motor?

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PRE-LAB HOMEWORK

Lab No. 5

MOTOR SPEED AND COUNTER EMF

Describe Motor Speed?

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Describe CEMF?

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How increase DC Shunt Motor Speed?

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How increase DC Series Motor Speed?

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PRE-LAB HOMEWORK

Lab No. 6

LOAD CHARACTERISTICS OF DC COMPOUND GENERATOR

What is a Generator?

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What is a DC Compound Generator?

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Write the Formulas of a DC Generator?

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Describe Generator Load?

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PRE-LAB HOMEWORK

Lab No. 7

COPARISON BETWEEN A CUMULATIVE GENERATOR AND A DIFFERENTIAL GENERATOR

What is Difference between Cumulative and Differential Generator?

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PRE-LAB HOMEWORK

Lab No. 8

SPEED AND OUTPUT CHARACTERISTICS OF A COMPOUND GENERATOR

What are output characteristics of a compound Generator?

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PRE-LAB HOMEWORK

Lab No. 9

EFFICIENCY AND LOSSES OF A COMPOUND GENERATOR

What is efficiency of compound generator?

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Efficiency Formulas?

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Describe losses of a DC generator?

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PRE-LAB HOMEWORK

Lab No. 10

DISECTION OF MACHINES

(Multifunction Electrical Machines Model A4300)

Describe the various parts of motor?

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Describe the various parts of generator?

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Describe the various parts of commutator?

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PRE-LAB HOMEWORK

Lab No. 11

OPERATION OF MACHINES (Multifunction Electrical Machines Model A4300)

Describe the operation of motor?

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Describe the operation of generator?

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PRE-LAB HOMEWORK

Lab No. 13

DELTA –Y CONNECTIONS OF A TRANSFORMER

Describe Delta connection of a transformer?

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Describe Y connection of a transformer?

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Describe Delta connection of a transformer?

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PRE-LAB HOMEWORK

Lab No. 14

MOTOR SPEED & INPUT CHARACTERISTICS

How can affect input to motor speed?

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How can affect motor speed?

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What are input characteristics of a motor?

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PRE-LAB HOMEWORK

Lab No. 16

CLOSE LOOP MOTOR SPEED CONTROL TECHNIQUE

Define feedback?

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What is difference between close loop and open loop circuit?

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How we can control motor speed by control system?

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