摘要
在实际工程设计过程中应选择可靠性强、灵敏度高的继电保护装置,使之能够迅速、准确地切除各种故障,保障石化装置安全、稳定、连续生产。目前企业供配电系统中常规的磁电式保护逐步被数字化微机保护取代,笔者以石化企业装置变电所为例,介绍35 kV变压器及6 kV变压器数字化微机保护的应用与整定。
Along with the continuous expansion and integration of petrochemical plants, the electrical load quantity and system capacity of power supply system continuously increase, which raises higher requirements for the reliability and stability of the power supply system. Electrical engineers should select protective relay with higher reliability and sensitivity, which can quickly and accurately clear the fault, to ensure a safe, stable and continuous production. The setting of numerical protective relay REF542 + , which is applied as the protection of 35/6kV and 6/0.38kV power transformers in the plant, is also discussed.
出处
《石油化工设计》
CAS
2006年第3期33-37,共5页
Petrochemical Design
关键词
纵差保护
励磁涌流
比率制动
Differential relay, Magnetizing inrush, Ratio restraint
