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10B11EC311ElectricalMachinesandInstruments

(Lecturer,ECE)

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Title : ElectricalMachinesand

Code : 10B11EC311

LTP

:

3

1

Pre

requisites

:

Electric

Circuit

Analysis

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1. Basic Electrical En ineerin D.C.Kulshrestha Tata

Mcgraw Hill Publication Co.

2. Electrical Technolo Volume II

B.L.Thera a & A.K.

Theraja , S. Chand.

3. Modern Electronic Instrumentation and Measurement

Techniques Helfrick and Cooper, PHI

4. Electric Machinery A.E. Fitzgerald, C. Kingsley Jr. and At.

D. Umans, Fifth edition, McGraw Hill Publication Co.

5. A course in Electrical and Electronic measurements andinstrumentation A.K.Sawhney, Dhanpat Rai and Co.

6. Electrical Machines I.J. Nagrath and D.P. Kothari, Third

edition,Tata Mc Graw Hill Education 2004.

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es s ura on y a us

T2 25 1hr. 30 min Till T2

T3 35 2 hrs Completey u

Assignmentetc. includingattendance

25 whole semester

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Daytodaywork 70%

Attendance&disciplineinlab 15%

Quantity

&

Quality

of

Experiments

per orme , a ora orys s, an ng

oflabequipments,instruments,gadgets,

, .

Lab

Records 15%

MidTermLabviva/test15%

15%

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, ,

Theory 100Marks 2hrs Entire syllabus

Practical 3daysoflabwork 4thdaylabvivaores

If gets F Re register in the next semester whencourse available

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All classes

Debar Coordinator/ counselor

notification

twice

VC, , .

For special cases (approved by VC) makefor T3 as supplementary examination.

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A+ Outstanding

A Excellent

B+ VeryGood

B Good

C+ Avera e

C BelowAverage

F Fail

NOTE :In the final Result, if you get F grade, youshall be permitted to appear in Supplementary

Exam to get either D or F.

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A rheostat is an electrical component that has

an ad ustable resistance.

It is a type of potentiometer that has two.

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The basic principle used by rheostats is Ohms law, which

given voltage.

Rheostats do not have olarit and o erate the same whenthe terminals are reversed.

Applications:

Light dimmers use rheostats to limit the current passingthrough the light bulbs in order to change their brightness.

Motor controller also use rheostats to control the speed of

a motor by limiting the flow of current through them.They are used in many small appliances such as blenders,

mixers, fans, and power tools.

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e wa me er s anelectrodynamic instrument formeasurin the electric ower ofany given circuit.

The device consists of a pair of

xe co s, nown as currencoils, and a movable coil knownas the otential coil.

The current coils are connected

in series with the circuit, whilet e potent a co s connecte nparallel.

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A tachometer is an instrument measuring the

rotation s eed of a shaft or disk, as in a motoror other machine.

minute (RPM) on a calibrated analogue dial, or

digital displays.

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THEEND