EIM महा-मैराथन//Polytechnic 3rd semester EIM Modal paper

EIM महा-मैराथन #marathon class #oneshot #pyq #mahamarathon polytechnic 3rd semester one night series
Syllabus covered in this video :
1. Introduction to Electrical Measuring Instruments:
1.1 Concept of measurement and instruments
1.2 Concept of measurement of electrical quantities and instruments for their
measurements, sources of error.
1.3 Types of electrical measuring instruments – indicating, integrating and
recording type instruments
1.4 Essentials of indicating instruments – deflecting, controlling and damping
torque

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2. Ammeters and Voltmeters (Moving coil and moving iron type)
2.1 Concept of ammeter and voltmeters and difference between them
2.2 Construction and working principles of moving Iron and moving coil
instruments
2.3 Merits and demerits, sources of error and application of these instruments
3. Wattmeters (Dynamometer Type)
Construction, working principle, merits and demerits of dynamometer type wattmeter,
Digital wattmeters.
4. Energy meter
4.1 Induction Type: Construction, working principle, merits and demerits of single phase and three-phase energy meters
4.2 Errors and their compensation
4.3 Simple numerical problems
4.4 Construction and working principle of maximum demand indicators
4.5 Digital energy meter (diagram, construction and application)
5. Miscellaneous Measuring Instruments:
5.1 Construction, working principle and application of Meggar, Earth tester(analog
and digital) Multimeter, Frequency meter (dynamometer type) single phase
power factor meter (Electrodynamometer type). Working principle of
synchroscope and phase sequence indicator, tong tester (Clamp-on meter)
5.2 Instrument Transformers: Construction, working and applications
a) CT
b) PT
6. Electronic Instruments:


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