Course Details

Subject {L-T-P / C} : EE6253 : Power System Instrumentation {3-0-0 / 3}
Subject Nature : Theory
Coordinator : Prof. Gopalakrishna Srungavarapu


Measurement error and uncertainty, accuracy, types of errors, propagation of errors, characteristics of measuring instruments. Signal conditioning, instrumentation amplifiers, sample and hold circuits, filters, isolation amplifiers. A/D and D/A conversion: parallel, successive approximation and dual slope A/D converters. Data acquisition systems and Virtual instrument: Hall sensors for voltage and current measurements, current and potential transformers, frequency, phase sequence measurement, sequence components measurement, Phase lock loop (PLL) and Frequency lock loop (FLL), power system measurements for single phase and three phase circuits: -Active, reactive, apparent power measurements. Measurement of THD, pf, displacement factor, measurement of instantaneous active and reactive powers, Detection of winding deformation in power transformers using impedance measurements, SFRA, and online high-frequency signal injection. PC based instrumentation.

Course Objectives

  1. Comprehend various transducers and measuring instruments used in power systems
  2. To understand the methods to measure various power systems parameters

Course Outcomes

At the end of the course, the student will be able to
1. Suggest techniques for carrying out power system measurements
2. Understand the method to perform PC based measurements

Essential Reading

  1. Alex McEachern, Power System Measurement, Wiley , 1999
  2. Alessandro Ferrero, Marco Faifer, ELECTRIC POWER AND ENERGY MEASUREMENT, Wiley , 2016

Supplementary Reading

  1. Bentley, Principles of Measurement Systems, Pearson , 2006
  2. D.V. Murty, Transducers and Instrumentation, PHI , 2008