光纤纵差保护7SD610在广州石化炼油改扩建工程的应用

通过对短线路保护应用的现状和特点进行分析比较,以及对光纤纵差保护的基本工作原理进行分析,指出光纤纵差保护是未来短线路保护应用的趋势。结合广州石化炼油改扩建工程电缆线路应用经验,阐明了7SD610光纤纵差保护装置的一些特点和优势,并提出了一些建议。

Line Differential Protection Scheme Modelling for Underground 420 kV Cable Systems

Based on the analysis of a specific relay model and an HVAC （high voltage alternating current） cable system, a detailed approach to EMTDC/PSCAD modelling of protective relays is presented. Such approach allows to create complex and accurate relay models derived from the original algorithms. Relay models can be applied with various systems, allowing to obtain the most optimal configuration of the protective relaying. The present paper describes modelling methodology on the basis of Siemens SIPROTEC 4 7SD522/610. Relay model was verified experimentally with its real equivalent by both EMTP-simulated and real world generated current signals connected to the relay.

光纤差动保护在35kV线路-变压器组接线中的应用

针对35k V线路-变压器组接线方式,以SIEMENS 7SD610保护装置为例,详细介绍其采用光纤差动保护的工作原理,并提出具体实用的整定计算原则和检验调试方法。

TSD610光纤纵差保护装置在电力系统的应用

通过对短线路保护应用的现状、特点和光纤纵差保护的基本工作原理进行分析,指出光纤纵差保护是未来短线路保护应用的趋势。结合工程实践,阐明7SD610光纤纵差保护装置的特点和优势,并提出建议。