AC and DC power supply and measuring instruments

Author: Shanghai Ultra-High Voltage Transmission and Distribution Company
Publisher:
Publish Date: 2005-10-31
Features: With the national economy growing at an annual rate of nearly 10%, the power system, as the forerunner of the national economy, has been expanding at an ultra-normal speed in recent years. Large substations have been popping up like mushrooms, and the technology, upgrading, and renewal of substation equipment have accelerated. In particular, computer technology, power electronics technology, and communication technology have been increasingly integrated into the core of substation control equipment. In the face of such technological progress, to meet the strategic decisions of nationwide interconnection and "West Power to East" transmission, as well as the construction and operation of ultra-high voltage AC and DC transmission, based on the requirements of national standards, industry standards, the "Power Industry Vocational Skill Identification Specification," and relevant transmission and distribution operation position specifications, combined with the actual conditions of ultra-high voltage transmission and distribution operation, Shanghai Ultra-High Voltage Transmission and Distribution Company has organized the writing of the "Ultra-High Voltage Transmission and Distribution Operation Skill Training Textbook" (a set of 7 volumes) to meet the training needs of ultra-high voltage transmission and distribution enterprises nationwide for team building, position training, and skill identification in response to the development of ultra-high voltage transmission networks. "AC and DC Power Sources and Measurement Instruments" is the fifth volume of this set, divided into 11 chapters, with the main content being:
Chapter 1: Composition and Structure of Relay Protection and Control DC Systems, introducing the composition, structure, and development history of DC systems, comparing the advantages and disadvantages of various schemes.
Chapter 2: Batteries, focusing on the principles and applications of sealed valve-regulated lead-acid batteries, as well as some operational experiences.
Chapter 3: Charging Devices, introducing the principles of chargers currently in operation.
Chapter 4: Insulation Monitoring Instruments, introducing the working principles of various types of insulation monitoring instruments and some practical operational methods.
Chapter 5: Flash and Voltage Relays, introducing the working principles of flash relays and voltage relays at different stages of development.
Chapter 6: DC System Monitors, explaining the role of monitors in charging devices and DC system operation monitoring, as well as the requirements and conceptual understanding of monitor usage.
Chapter 7: Uninterruptible Power Supply (UPS) Equipment, focusing on the two types of UPS in substations, with a brief introduction to independent UPS used in other applications.
Chapter 8: 48V Communication DC Power, introducing the requirements for 48V communication power in substations, with charging and monitoring technologies similar to those of protection and control power.
Chapter 9: Safe Operation of DC Systems, analyzing the safe operation of DC systems from multiple perspectives, examining the power supply from a system integration standpoint to enhance the reliability and safety of DC current operation.
Chapter 10: Application and Development of New Technologies in DC Systems, introducing new technologies widely used in DC systems and power supplies.
Chapter 11: Electrical Measurement Instruments in Substations, providing a concise introduction to the types, principles, applications, and measurement errors of measurement instruments in substations.
This book can serve as a training textbook for power production personnel, technical personnel, and management cadres in ultra-high voltage transmission and distribution enterprises nationwide to learn and understand the job knowledge and operational skills of substation AC and DC power sources and measurement instruments. It can also be used as supplementary teaching material for specialized courses in power vocational colleges and universities, as well as training tutorials for position skill training and vocational skill identification.