Book Details

Electrical Measurements (Measurement Of Power And Energy, Measurements Of Parameters, Magnetic Measurements, Digital Meters)

Electrical Measurements (Measurement Of Power And Energy, Measurements Of Parameters, Magnetic Measurements, Digital Meters)

Published by uLektz

Course Code : ULZ0290
Author : uLektz
University : General for All University
Regulation : 2017
Categories : Electrical & Electronics
Format : ico_bookePUB3 (DRM Protected)
Type : eBook

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Description :Electrical Measurements (Measurement Of Power And Energy, Measurements Of Parameters, Magnetic Measurements, Digital Meters) of ULZ0290 covers the latest syllabus prescribed by General for All University for regulation 2017. Author: uLektz, Published by uLektz Learning Solutions Private Limited.

Note : No printed book. Only ebook. Access eBook using uLektz apps for Android, iOS and Windows Desktop PC.

Topics
UNIT I MEASURING INSTRUMENTS

1.1 Classification – Deflecting, control and damping torques

1.2 Ammeters and Voltmeters – PMMC, moving iron type, dynamometer and electrostatic instruments – Expression for the deflecting torque and control torque

1.3 Errors and compensations– Extension of range using shunts and series resistance

1.4 CT and PT: Ratio and phase angle errors – Design considerations

UNIT II MEASUREMENT OF POWER AND ENERGY

2.1 Single phase and three phase dynamometer wattmeter – LPF and UPF – Expression for deflecting and control torques

2.2 Extension of range of wattmeter using instrument transformers – Measurement of active and reactive powers in balanced and unbalanced systems – Type of P.F. Meters

2.3 Single phase and three phase dynamometer and moving iron type Single phase induction type energy meter - Driving and braking. torques – errors and compensations

2.4 Testing by phantom loading using R.S.S. meter– Three phase energy meter – Tri vector meter – Maximum demand meters– Electrical resonance type frequency meter and Weston type synchroscope

UNIT III POTENTIOMETERS

3.1 Principle and operation of D.C. Crompton’s potentiometer – Standardization – Measurement of unknown resistance – Current – Voltage

3.2 AC Potentiometers:polar and coordinate types –Standardization – Applications

UNIT IV MEASUREMENTS OF PARAMETERS

4.1 Method of measuring low, medium and high resistance – Sensitivity of Wheat stone’s bridge – Carey Foster’s bridge– Kelvin’s double bridge for measuring low resistance

4.2 Loss of charge method for measurement of high resistance – Megger - Measurement of earth resistance

4.3 Measurement of inductance – Quality Factor - Maxwell’s bridge – Hay’s bridge – Anderson’s bridge

4.4 Measurement of capacitance and loss angle – Desauty bridge – Schering Bridge–Wagner’s earthing device–Wien’s bridge

UNIT V MAGNETIC MEASUREMENTS

5.1 Ballistic galvanometer – Equation of motion – Flux meter – Constructional details

5.2 Determination of B–H Loop methods of reversals six point method – AC testing

5.3 Iron loss of bar samples– Core loss measurements by bridges and potentiometers

UNIT VI DIGITAL METERS

6.1 Digital Voltmeter–Successive approximation

6.2 Measurement of phase difference – Frequency – Hysteresis loop using lissajious patterns in CRO – Ramp and integrating type

6.3 Digital frequency meter–Digital multimeter– Digital Tachometer.

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