摘要
介绍并网机组发电机变压器组保护的概念和建立保护的前提,分析发电机变压器组保护对应的故障形式及其对机组和电网的安全稳定运行的影响,对机组的承受能力和电网的稳定运行要求进行探讨,给出涉网发电机变压器组保护合适的定值整定原则和出口方式,指出保护逻辑应根据整定原则的改变作相应的调整。
The paper analyses the concepts of the G-T relay protections related with power grid,and takes research on the event faults for the safety operation to generator and power grid,the capability of the generator and power grid,writes out the suitable setting guide and the output matrix,points out the protection logic should be modified suiting with the setting principle.
出处
《河北电力技术》
2009年第5期5-7,10,共4页
Hebei Electric Power
关键词
并网机组
发电机变压器组保护
继电保护
定值整定
unit combined to the grid
protection in generation-transformer group
relay protection
setting principle
