The topic of the BSC thesis was to design the medium voltage feeding and the low voltage main distributor of an officebuilding. For this task, the built-in power of the installed loads were available.
In the second chapter I illustrated, what important considerations must be taken into account during transformer selection. I presented the most important parameters of the loads. After the calculation of the power need, I chose the appropriate transformer, then I gave an overview of the transformer.
In the third chapter I analyzed the connection types to the medium voltage public power distribution grid, then I designed the switching diagram of the medium voltage switchgear. Thereafter I performed the appropriate calculations for medium-voltage device selection, and then I presented my choice of equipment. At the end of the chapter I prepared the single-line diagram and the frontal drawing of the selected medium-voltage switchgear.
In the fourth chapter I defined the low-voltage main distribution device’s switching mode and defined the required operating and fault parameters for the device selections. With the known operation and fault parameters, I selected the type of the main distribution device and the switchgears. In order to correct the power factor I selected reactive compensating units for the main busbars. At the end of the chapter I prepared the single-line diagram and the frontal drawing of the main distribution device.
In the fifth chapter, after determining the cable route, I chose the proper cables and busbars in the knowledge of the rated parameters. I presented the shielded busbars I used, then after performing the calculations, I chose the type of the shielded busbars which supply the loads in each floor. I chose the proper protection of the busbars. At the end of the chapter I prepared the single-line diagram of the two busbars.
The designed circuit int he thesis will not be realized, but my scaling results are useable for building with similar built-in power of the installed loads.