Kontrola vypínacích charakteristik digitální ochrany vedení řady 7SA6.

Abstract

In this work we are familiar with digital protection 7SA6 Siemens, with its functions, control, setup and use. This thesis is divided into an introduction and five sections in which we learn about protections, the principle of setting, characterization 7SA6 Siemens digital protection, control method of tripping characteristics and their evaluation.

The first chapter deals with the theoretical analysis of the protections and protection, in which we learn about the types of failure, the basic allocation of protection requirements, which are placed on the protection and instrument transformers. The main focus of this chapter is on the overcurrent protection, and their distribution according to the characteristics, the distance and the protection of their basic characteristics.

The second chapter introduces the principle of setting distance and overcurrent protections because their setup is very important for their proper function.

The third chapter describes Digital Distance Protection 7SA6 Siemens, which was carried out their breaking characteristic.

In the fourth chapter, which is focused on controlling Tripping characteristics of overcurrent protection level digital Siemens 7SA6, is a procedure for checking all time-dependent characteristics, diagrams, tables, measurements, calculations and subsequent graphs of measured and calculated values.

The last fifth chapter contains the final evaluation of inspection results Tripping characteristics of overcurrent protection level digital Siemens 7SA6.