"220KV变电站综合自动化110KV出线保护配置与整定计算"

This 100-page architectural electrical graduation design thesis "220kv Substation Integrated Automation 110kv Main Line Protection Configuration and Setting Calculation" details the design process, principles, and methods of the 110kv main line protection in the 220kv substation. It utilizes the widely adopted microcomputer protection principles and new methods for setting. The thesis begins with a basic introduction to the main busbar, comparing various forms of busbar arrangements, their respective advantages and disadvantages, and the principles for selecting transformers. The calculation of short-circuit currents is then discussed, including the purpose, principles, methods, and specific data for both symmetrical and asymmetrical short-circuit calculations, to prepare for the selection, setting, and verification of high-voltage electrical equipment. The selection and verification of electrical equipment are mainly based on the results of symmetrical short-circuit calculations. The specialized part of the design elaborates on the selection, setting, and verification principles and methods of relay protection, with specific focus on the calculation and verification of current-voltage protection for phase-to-phase faults and the setting and verification of zero-sequence current protection for ground faults. Keywords: Integrated Automation, Microcomputer Protection, Relay Protection, Setting and Verification.