Measurement and Calculation of Comprehensive Errors in Measuring Electric Energy (Electric Power) and Improvement Techniques

Author: Peng Shixiong
Publisher:
Publish Date: 2002-03-01
Features: This book comprehensively elaborates on the technical issues of electric energy measurement in power networks. The book consists of twelve chapters. Chapter 1 and Chapter 2 introduce the methods and formulas for calculating the errors of voltage transformers under actual operating loads. Chapter 3 introduces the on-site calibration methods and testing techniques for voltage transformers. Chapter 4 covers the principles, error analysis, and on-site calibration testing techniques for capacitive voltage transformers. Chapter 5 introduces the on-site calibration methods and testing techniques for current transformers. Chapter 6 presents the on-site calibration testing techniques for current transformers used for metering in 500kV high-voltage lines. Chapter 7 introduces the on-site calibration methods and testing techniques for high-current current transformers. Chapter 8 explains the testing methods and calculation methods for the voltage drop in the secondary circuit of voltage transformers and the resulting measurement errors in electric energy. Chapter 9 discusses technical improvements to reduce the voltage drop in the secondary circuit of voltage transformers and the associated measurement errors. Chapters 10, 11, and 12 cover the testing, calculation, and correction techniques for comprehensive errors in the measurement of AC electric energy (electric power) in high-power three-phase circuits and the rectification efficiency of high-power rectification systems. They also analyze and calculate the uncertainties in online measurements of electric power (electric energy) and rectification efficiency, as well as technical improvements to reduce measurement uncertainties. The book features correct analysis, rigorous calculations, scientific methods, and strong practicality, making it highly valuable academically. This book is suitable for technicians and workers in industries such as power, electric metallurgy, and electrochemical, as well as large power users engaged in electromagnetic measurement, electric energy metering, high-power online testing, precision online testing of rectification efficiency for large-scale rectification equipment, precision online testing of cylinder efficiency and output electric power for large steam turbines, and evaluation experiments on energy-saving and loss-reduction effects after the retrofitting of large-scale power equipment.