Návrh modernizace kobkové rozvodny 6 kV.

Abstract

This thesis is dedicated to upgrading of cubicles high-voltages distribution point.. In the theoretical part deals with the modernization of methods for changing the concept not only distribution points, but the whole power lines. Acquaints us with the basic implementation of high-voltage distribution point and types of devices that are used for individual performance, including the basic parameters of these devices and their values. The practical part describes the project of electrical devices used in high voltage cubicles distribution point, with regard to short-circuit current and dynamic short-circuit current. Explains the procedure for calculating short circuit currents according to IEC 60909-0 and the subsequent conversion to short-circuit currents provided by the manufacturer. It is also part of the calculation of the limitation of short circuit currents at the desired value. Furthermore, close process equipment project for each cubicles, the composition of the cubicles and the connections between devices.