火电机组甩50%负荷试验操作浅析
耿学军¹，张承宗²，梁海龙²，余磊²，周超²
（1. 黄冈大别山发电有限责任公司，湖北 麻城 438300；2. 湖北方源东力电力科学研究有限公司，湖北 武汉 430077）
摘要： 对于火电机组甩负荷试验，高压旁路控制是一个重点。实例呈现未设置快开保护功能的小容量启动旁路如何
手动控制旁路开度，该做哪些准备，以完成机组甩50%负荷试验。同时，阐述甩50%负荷试验前及试验中的注意事项，
以期为同类型启动旁路机组甩负荷试验提供参考。
关键词： 火电机组；甩负荷；旁路控制
中图分类号： TK267     文献标识码： A     文章编号： 2095-0802-(2021)03-0176-02
Analysis on Operation of 50% Load Rejection Test of Thermal Power Unit
GENG Xuejun¹, ZHANG Chengzong², LIANG Hailong², YU Lei², ZHOU Chao²
(1. Dabieshan Power Generation Co., Ltd. of Huanggang, Macheng 438300, Hubei, China; 2. Fangyuan Dongli Electric Power
Science & Research Co., Ltd. of Hubei, Wuhan 430077, Hubei, China)
Abstract: High-voltage bypass control is a key point in load rejection test of thermal power units. This paper presented an example
of how to manually control the bypass opening of small capacity start-up bypass without quick opening protection function,
and what preparations should be made to complete the 50% load rejection test of the unit. At the same time, the matters needing
attention before and during the 50% load rejection test were described. It can be used as a reference for load rejection test of the
same type of start-up bypass units.

Key words: thermal power unit; load rejection; bypass control