Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Petar Danchev"'
Publikováno v:
Geodesy and Cartography, Vol 46, Iss 4, Pp 159-162 (2020)
The paper deals with some problems when applying a correction to reduce the effect of vertical refraction in precise leveling observation. An example for calculating the refraction correction for one first order leveling line with length of 109 km in
Externí odkaz:
https://doaj.org/article/9ddf994825be405cb7ba3dc5f57c97b5
Publikováno v:
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings.
Publikováno v:
2019 11th Electrical Engineering Faculty Conference (BulEF).
The article deals with the switching overvoltage of low voltage shunt reactors in various circuit configurations. The purpose is to ascertain, technically, whether it is necessary to use surge protection devices in the wiring diagrams. The idea behin
Publikováno v:
2018 10th Electrical Engineering Faculty Conference (BulEF).
Given the relatively low cost of dry power transformers compared to shunt reactors, a non-standard, but technically efficient and cost-effective solution for regulating the power consumption to compensate for medium voltage cable lines is the use of