Description

Notes,quiz,blog and videos of electrical instrumentation. It almostcover all important topics which are indexed chapter wise Chapter 1Measurement 1. Measurement and error 2. Accuracy and Precision 3.sensitivity resolution 4. Error & Error analysis 5. Effect oftemperature 6. Stray field 7. Hysterisis and Frequency variation& method of minimizing them 8. due to shunt connected andseries connect ed instruments 9. calibration curve 10. Testing& calibration of instruments 11. Theory & operation ofballistic galvanometer 12. D'arsonal galvanometer 13. galvanometermotion & damping 14. Definition of analog & digitalinstruments 15. Classification of analog instruments, theiroperating principle Chapter 2 Different types of Ammeter &Voltmeter 1. Permanent Magnet Moving Coil Instrument 2.Electrodynamometer 3. Hotwire 4. Electrostatic 5. Induction 6.Rectifier 7. Ferro dynamic & Electro-thermic 8. Extension ofrange of instruments using shunt & multiplier Chapter 3Instrument transformers and Measurement of power 1. Potential andcurrent transformers 2. ratio and phase angle errors 3. Differencebetween CT and PT 4. Power in AC and DC Circuit 5.Electrodynamometer type of wattmeter 6. Low power factor & UPFwattmeter 7. Measurement of power in three phase circuit, one, two& three wattmeter method 8. Measurement of power using CTs& PTs Chapter 4 Measurement of Energy 1. Single phase inductiontype energy meter 2. Testing by phantom loading and using R.S.S.meter 3. Three phase energy meter 4. Tri-vector meter 5. DCpotentiometer standardization 6. application of DC potentiometer 7.AC polar type and coordinate type potentiometer Chapter 5Miscellaneous Instruments & Measurements 1. Power factor meter2. Single phase and three phase Electro-dynamometer type &moving iron type 3. Vibrating reed 4. Resonance type & Westontype 5. Series Type Ohmmeter And Shunt Type Ohmmeter 6. Megger& Ratio meter 7. Classification of low 8. medium & highresistance Voltmeter 9. Ammeter 10. Wheatstone Bridge 11. Kelvin?sdouble bridge & loss of charge methods for resistancemeasurement 12. Earth resistance measurement 13. B-H Curve