Electrical Measurements
ELECTRICAL MEASUREMENTS GEETHANJALI COLLEGE OF ENGINEERING AND TECHNOLOGY DEPARTMENT OF EEE Name of the Subject : Electrical Measurements JNTU CODE : 56009 Programme : UG / PG Branch: Electrical & Electronics Engineering Version No : Year: III Updated on :27/12/2014 Semester: II No. of pages : Classification status (Unrestricted / Restricted ) Distribution List : Prepared by : 1) Name : K.Mahender 1) Name : 2) Sign : 2) Sign : 3) Design : Associate Professor 3) Design : 4) Date : 27/12/2014 4) Date : Verified by : 1) Name : * For Q.C Only. 2) Sign : 1) Name : 3) Design : 2) Sign : 4) Date : 3) Design : 4) Date : Approved by : (HOD ) 1) Name : Dr. S.Radhika 2) Sign : 3) Date : SYLLABUS JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY, HYDERABAD III Year B.Tech EEE II-Semester T P C 4+1 *0 4 Unit -I Classification of measuring instruments-deflecting, controlling and damping systems, ammeters and voltmeters, PMMC,MI and MC instruments, Expression for the deflecting torque and control torque. Expression for the deflecting torque and control torque, Errors and compensation and extension of range using shunts and series resistance, Electrostatic voltmeters-electrometer type and attracted disc type. Extension of range of electrostatic voltmeters Unit-II Introduction to CT & PT- Design considerations, Ratio and phase angle errors, Types of P.F meters-dynamometer and moving iron type, I ph and 3 ph meters, Frequency meters- resonance type and Weston type, Synchroscopes Unit-III Single phase dynamometer wattmeter-LPF & UPF, Double element and three element dynamometer wattmeter, Expression for deflecting and controlling torques and extension of range of wattmeter using instrument transformers, Measurement of active in balanced systems, Measurement of reactive powers in unbalanced systems.
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