Electric energy measurement

Author: Lei Wen
Publisher:
Publish Date: 2006-03-01
Features: According to the provisions of the "Electricity Law" and the "Electricity Inspection Management Measures," "For actions that endanger the safety of power supply and electricity use or disrupt the order thereof, power supply enterprises have the right to prevent such actions. Inspectors carrying electricity inspection certificates have the right to enter user premises for safety inspections." In accordance with the requirements of the Ministry's notice on "Issues Regarding the Qualification Recognition of Electricity Inspection Personnel" (Comprehensive [1998] No. 7), it is clearly stipulated that to ensure the safe and stable operation of the power grid, maintain normal power supply and electricity use order, protect the legitimate rights and interests of both power supply and electricity use parties, and effectively fulfill the inspection duties stipulated in the "Electricity Law," as well as to standardize the inspection behavior of electricity inspection personnel in power supply enterprises, the qualifications of electricity inspection personnel at levels one, two, and three must undergo assessment and recognition. Therefore, to improve the quality of the electricity inspection team, ensure that inspection personnel possess the corresponding inspection capabilities and standards, and guarantee that electricity inspection work is carried out legally and effectively, a set of "Electricity Inspection Qualification Assessment Textbooks" (5 volumes) has been compiled to meet the training needs of provincial power companies for electricity inspection positions and qualification recognition. This book is the "Electricity Inspection Qualification Assessment Training Textbook" (Electric Energy Metering) volume, consisting of 6 chapters, which primarily introduce laws and regulations related to electric energy metering, types and contents of electric energy metering devices, types of electric meters and their nameplates, technical aspects of induction, static, multifunctional, prepaid, and wide-range electric meters, current and voltage transformer wiring, components and configurations of metering cabinets (boxes), five categories of electric energy metering devices and their adjustment contents and examples, determination of metering plans, accuracy grade configuration and errors, selection of transformers and secondary circuit design, wiring methods, configuration principles, design review, ordering and acceptance testing, asset management, installation and acceptance, operation management, responsibility division, fault handling, operation monitoring of main and auxiliary electric meters, on-site inspection, periodic verification (rotation), sampling verification, and transportation, requirements for certification management, types and production of certifications, use of certifications, implementation requirements for metering seals, color markings for metering instruments, the purpose, technical requirements, and various types of automatic meter reading systems, as well as electric meters used in conjunction with automatic meter reading systems. It also covers correct and combined wiring, incorrect wiring, wiring inspection, and calculation of additional/compensatory energy, etc. Finally, it includes technical management, installation wiring, verification, and use procedures for electric energy metering devices. This set of textbooks can serve as the dedicated assessment material for electricity inspection position training and qualification recognition in power companies across various provinces, cities, and counties, as well as reference materials for electricity marketing, electric energy metering, and new installation and connection training in power supply enterprises.