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The research of the sampling arithmetic for numberic busbar protection
Author(s): 
Pages: 4-6,18
Year: Issue:  6
Journal: RELAY

Keyword:  数字母线保护采样值保护算法制动系数;
Abstract: 母线保护装置的可靠性关系到电力系统的安全、稳定运行.文中分析了母线保护的判据,提出了一种用于数字式母线保护装置的瞬时值的母线差动保护方案.该方案实现了母线保护的快速、较高的抗CT饱和的要求.此外还介绍了与母线保护配合的电压闭锁、母线充电保护、断路器失灵保护的原理及实现.已有采用此方案的数字式母线保护装置在电力系统中运行.
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